Wednesday, July 30, 2003

Mt. Lassen report

Yep... the folks there make the trip.

Here's the crew:

http://www201.pair.com/resource/resource-intl/nelms20031.JPG

A few folks were unable to make it.

Now for an observing report:

Wednesday night I used the 10" f/5.7 CPT and three eyepieces - a 20 Nagler Type II, 12 Nagler Type II, and 7 Nagler. A family from Seattle arrived at the north end of Devastated Area, got out and turned off all their lights. I invited them to look through the telescope. It was a grandfather, maybe a few years older than me, had several grandchildren along. The eldest was a young lady maybe 17 years old who had studied and was tested in astronomy for the National Science Foundation. She knew every object I showed, and I was able to let her explain what she was seeing to her siblings . This was very satisfying. We looked at M5, M13, M57, Alberio, the Double Double, M27, M51, M8 and others. The youngest grandchild, six years old, was getting tired so they thanked me and left. I continued, pointing my scope toward Aquila and opened the Night Sky Observers' Guide. I logged several NGC open clusters and planetary nebulae. The views were rewarding, many of the open clusters having nice hazy background of unresolved dim stars with brighter members in chains. I kept at it until fatigue forced me to take down, and return to camp. Everyone was asleep when I returned.

Thursday night I set up the 18" Obsession and revisited several of the objects I'd looked at the prior night in Aquila. But this was a shorter observing session, as the clouds gave us only intermittent views then socked in fairly early. Still, what I did see was excellent, and it was fun to just be out in such a beautiful dark sky in an amazing geologic location.

Some like Bumpass Hell parking lot, for its additional elevation and wonderful horizons, but I prefer Devastated. Devastated is 2200 feet or more lower, which I find a more comfortable elevation as far as my energy level. At over 8200 feet I feel lethargic. Everything I do is more work. I also like the very short and easy drive back from Devastated - to either Summit Lake Campground or Lost Creek. I also think it is darker at Devastated. There is just something about the negative horizons at Bumpass that makes me feel as if the Redding and Chico light domes (small as they may be), along with the small towns visible in the northern Central Valley always catch my eye. At Devastated, the horizons are good but not negative, and there are no notable light domes (except when higher clouds reflect them). Devastated is also the home site of the annual star parties at Lassen.

Friday evening I stayed in camp, watching the clouds to see if there would be a break. Others went to Devastated, but did little or no observing and returned early.

Saturday was to be the public star party, which did not happen due to poor weather. The public event is the most gratifying part of the trip. It is fun to be with friends, and to observe, but I like to see how much the public (and park staff) enjoy the 2 hours they have looking at the universe through our equipment.

We'll return next year - and chances are we'll have great weather and lots of viewed objects to report on.

Mt. Lassen report

Awesome.

I'd forgotten what it was like to enter the park through the south entrance. For years I'd been coming in from highway 44 through Anderson or Redding, then through Shingletown, turning onto highway 89 at Manzanita Lake. That entrance is serene, with tranquil Manzanita Lake on the right and Reflection Lake across the road. The volcanic past of Mt. Lassen is well disguised in the peaceful waters, fishermen in waders and tubes, families camping with children playing... all first impressions for the uninitiated to Lassen. Not until one ventures further along the road, at Chaos Jumbles and Chaos Crags does the volcanic past of the place become undeniable. Yes, the Peak is visible from Manzanita Lake, but it is more a thing of beauty than a reminder of the power and unpredictability of Mother Nature.

Quite a different story coming in from Red Bluff, taking highway 36 to Mineral then entering the park at the south end of highway 89. The terrain is steep mountainside, with thick forests of pine and manzanita opening up in meadows of cascading streams and wildflowers. The park road snakes along the edge of ancient Mt. Tehama's chasm, down into the belly of the beast where hues of red, gold, brown and yellow paint the geothermal areas. The road falls away into the valley where Mill Creek continues to cut down through the V shaped terrain. The rough edges remaining from the big volcano form a ring, including Mt. Brokeoff, Mt. Diller, Diamond Peak, Mt. Conrad, Bumpass Mountain and of course, Lassen Peak. 8,000 feet below is the bottom of the boiler. You pass the Sulpher Works, where the smell of vents penetrates even closed car windows, then continue up to Emerald Lake, which still had ice in it, past Bumpass Hell parking lot, Lake Helen, winding up arnd around in the shadow of Lassen Peak's giant lava plugs - which poke out of the sides of the peak like Frankenstein's neck-knobs, past the Peak's parking lot and down the other side past snowfields, then Kings Creek Meadow - the archetype of mountain meadows - and down to Summit Lakes and our campgrounds.

We had the same campsites as prior years when we were displaced from Lost Creek Campgounds by the native folks. I have to assume they meet for their annual get-together on new moons, since our visits have coincided several times. I would be very interested in sharing the camprgound with them, but I suspect they want to keep their festivities to just indigenous participants. It would be like us not wanting early morning hikers right in our campsite.

When we arrived at the campsite several TACos had already arrived and set up camp. By Thursday afternoon everyone that would arrive was there. We had a great group of TAC "doers" - those who maintain the web-page, arrange star parties, keep the calendar, archives and so on, along with the friends of Alan Nelms who were there to remember "Nature Boy" and the fun we'd had with him in the early years of the Lassen trips.

So day turned to sunset, we ate our camp dinners, and headed out to Devastated Area to see if the clouds would clear. It was really just a few members of the group that provided the impetus to get out there, despite the cloudy conditions. The primary instigator was Steve Gottlieb, who's presence was as "observer emeritus" for the group - Steve is always a wealth of information about interesting and challenging objects. He and Randy Muller seemed to be almost vibrating with anticipation, and succeeded in getting everyone out to the observing site.

Soon after dark the skies began clearing. The Milky Way was glorious - and everyone was busy observing here and there, as bands of clouds floated by. I spent my time in Aquarius, using my 10" f/5.7 CPT to hunt open clusters and planetary nebulae throughout the area. It was a great time. However, several observers took down their equipment early on due to lightening far to our south. It was disconcerting to see the flashes, but there was no thunder so we determined we were a safe distance from the strikes. For some time we sat in chairs, there at 6,000 feet with the volcano standing tall just to our southwest, watching the light show, peeking through our scopes, and generally having a nice time. I packed it in at about 1:30 and returned to a dark campsite, where much of the group was sacked out after the long drive and campsite setups.

I think the highlight social night was over at Ken Head's campsite, where a small fire lit up the faces of a dozen of us, talking and having drinks on Thursday night. Several of the group had driven to Devastated Area to observe, but would return shortly after 11 p.m. - it was a total cloud-out. Some joined us at Ken's campsite. A real highlight was Steve Sergeant entertaining the group with various bottles of scotch - handing out small plastic cups with samples of this type and that of good scotch. I had never liked scotch until Steve's generous sampling. It was quite a night up there - thanks to Ken and Steve.

Friday was cloudy too, in fact, cloudier than the two prior days. Dean and I went to Manzanita Lake for showers and supplies, running into, as we always do, other TACos in the store and parking lot. We sat and talked over soft-serve ice creams, watched the skies, enjoyed the local wildlife, and had a relaxing time. On the way back we stopped at the bridge over Hat Creek, parked the truck and walked back to enjoy the beaver dam holding back a nice pond, with Lassen Peak and the forest below it reflected in the still waters. The only things that convinced me it was not a staged photo was the sounds of the stream cascading downhill below the dam, and the sight of fish "pecking" at the surface creating expanding rings in the surface of the pond.

That night too some of the party went out to set up telescopes, while others remained behind, deciding to venture out only at the sight of clearing skies. By 11 p.m. rain was beginning to sprinkle the campsite. Stacy was tending the fire she built, Peter had hauled in a load of dry wood he'd collected. We were telling stories about John Hales, Rod Norden and Alan Nelms, all who were just fun and funny beyond belief during prior Lassen trips and other times in the old days at Fremont Peak. It was lots of fun.

As the light rain turned to heavier drops the observers returned. There had been little to see, a few sucker holes to the south in Scorpius, but not much. Soon after midnight everyone turned in.

During the night the sound of real rain played on our tents. It would continue through the night.

I awoke to the sound of Bob Czerwinski suggesting to me that I get up, and we all go to Shingletown for breakfast at the Big Wheel. The rain increased. The weather report was for these conditions to persist until Tuesday. Randy Muller had already packed up and left, which caused a gradual chain-reaction of others following suit. There's always one in the group, and this year Randy was the leak in the dike that turned into a flood of attendees packing up and leaving.

By the time I had thrown all my wet gear into the truck the rain had subsided to a light drizzle. Rivulets ran through the campground toward the lake. Other campers too were bailing out. We stopped by the Loomis Museum on the way out and I cancelled the public star party scheduled for that evening. It was sad to do it, but there were no astronomers left and the chances of any sky at all were minimal.

We drove out, past the Crags, tranquil Manzanita and Reflection Lakes, down to the Big Wheel and had lunch. A few hours later I pulled into my driveway and the Nelms Star Party for 2003 was a fond memory. I had a great time, I know others did too. It was proof that the sky is merely the common ground we share, but that the friendships and comradeship in our group is the real glue. I think we've been going to Lassen for 12 years now, and this is the first "skunking" on record. So now I can't wait for CalStar, just two new moons away. I enjoy the familiar faces, the new ones too, and different places we go. We have a great group in TAC. We have a fun star party at Lassen each year - where we remember Alan.

Thanks, Alan...

Monday, July 14, 2003

La Caja de Los Gatos Observatory: July 14, 2003

Yesterday I received an upgrade motor and hand controller for my Osypowski built Compact Equatorial Platform. I had sent Tom O my old motor and a check for the upgrade middle of last week. Installing the new motor was true simplicity. Two screws secure the motor to the ground board, and everything is instantly aligned. Two cords came with the hand controller, a short one that can be tucked under the platform while in use, and a long one, which allows the user to be at the eyepiece comfortably while holding the controller.

Setting the platform up is simple. There is a solid top board upon which the rocker box of my scope sits, and a ground board that has the motor and bearings on it. When I place the scope on the platform, it sits down over a pin (I remove the ground board of my Dob, so I am using the rocker box with the hole in the bottom). There is no hunting around to be sure the scope is sitting correctly on the platform, there is no way to make a mistake. It literally takes me under 30 seconds to set up. That's just how it went last night. Oh, I also like that the platform is large enough to be under nearly all of the bottom of my rocker box. I am somewhat skeptical of designs that do not provide an adequate footprint to support the scope. Why? I once tried placing a scope that was too large for my platform on it. The scope jumped the track during the night, and it was a major pain in the boo-tay to screw around with it, trying to "right the boat" in the dark. I like platforms with plenty of support under the rocker box.

So, last night I did a rough polar align with my newly enhanced platform and waited for astronomical dark. The instructions described how to adjust the motor speed up or down as needed. I used Vega and Deneb as test stars for adjusting motor speed. I kept increasing the magnification until I had my highest power eyepiece in. When the stars would stay motionless for several minutes at a time, I switched eyepieces and began looking at deep sky objects.

The first was The Cats Eye Nebula, NGC 6543, in Draco. I found an easy trick to locating it - I use 18, 19 and 22 Draconis - which are in a straight line - and draw an imaginary line out to the east, about the same distance. I then use 33 (Gamma) and 32 Draconis to draw a line intersecting the first line. A low power eyepiece should get the planetary in view.

The seeing was okay, but not great. With my 7 Nagler and 3.8 Ultrascopic, I could see an oblong gray haze, and sometimes even a dimmer outer halo, barely. There were hints of a central star (oh... this is with an 8" f/7 Newtonian). I walked into the house and fixed my self an adult beverage, came back, and just like advertised, there was the Cats Eye, right where it belonged.

I moved to M13. I used the 20 Nagler and had a truly marvelous view. Nice little tight stars everywhere. I was able to relax, with the object staying dead center, and let my eye wander around, noting that when I avert my vision to about 30 degrees off axis, I got noticeably better resolution of the glob. I sipped my drink, looked up at the sky, looked into the eyepiece, went inside the house to see what the dogs were up to (they got bored when I began telling them about the globular) and made myself, another, er, glass of liquid refreshment.

Out I came again. I knew this night was just for testing the new motor and hand controller on the platform, but I was having fun. I pointed the scope at NGC 6940, the nice open cluster in Vulpecula, just off 39 and 41 Cygni. Into the center of the eyepiece, nice rich grouping of stars, one of my favorites among the non-M opens.

I also noticed on other thing, while the platform was tracking.... the sound my old motor made was gone. There is still some sound, but it is much more muted than before.

It was getting late, I've been working a lot of hours, and decided to turn in. The night was a big success, both in terms of how the new equipment operated, and in my hitting targets from memory.

I plan to be out back again tonight. Me, my Dob, and my platform.

Tuesday, July 8, 2003

Occultation of Zubenelgenubi

Set up 8" Dob in my backyard. Put in 12mm Nagler. Found moon and stars. Seeing was very steady. Nice detail on moon, but I decided to watch the two stars instead of checking out la luna.

Began watching............ ........... ................................ ............................. ......................... ....... ........................ ............................. ..................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ...........................

wondered how far to edge of moon.................. ............................... ................................... .................................... ....................................................

sipped coffee ............. .............................. ................................................................ .................................................. ..................................

looked away for a moment........................ ......................................... ................................ ............................. ............................. ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ...........................

wondered how far to edge of moon.................. ............................... ................................... .................................... ....................................................

sipped coffee ............. .............................. ................................................................ .................................................. ..................................

looked away for a moment........................ ......................................... ................................ ............................. ............................. ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ...........................

wondered how far to edge of moon.................. ............................... ................................... .................................... ....................................................

sipped coffee ............. .............................. ................................................................ .................................................. ..................................

looked away for a moment........................ ......................................... ................................ ............................. ............................. ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ...........................

wondered how far to edge of moon.................. ............................... ................................... .................................... ....................................................

sipped coffee ............. .............................. ................................................................ .................................................. ..................................

looked away for a moment........................ ......................................... ................................ ............................. ............................. ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ...........................

wondered how far to edge of moon.................. ............................... ................................... .................................... ....................................................

sipped coffee ............. .............................. ................................................................ .................................................. ..................................

looked away for a moment........................ ......................................... ................................ ............................. ............................. ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ...........................

blink
............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ...........................

wondered how far to edge of moon.................. ............................... ................................... .................................... ....................................................

sipped coffee ............. .............................. ................................................................ .................................................. ..................................

looked away for a moment........................ ......................................... ................................ ............................. ............................. ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ...........................

wondered how far to edge of moon.................. ............................... ................................... .................................... ....................................................

sipped coffee ............. .............................. ................................................................ .................................................. ..................................

looked away for a moment........................ ......................................... ................................ ............................. ............................. ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ...........................

wondered how far to edge of moon.................. ............................... ................................... .................................... ....................................................

sipped coffee ............. .............................. ................................................................ .................................................. ..................................

looked away for a moment........................ ......................................... ................................ ............................. ............................. ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ........................... ............... .............................. ................................................................ .................................................. .................................. ...........................

BLINK
put telescope away.

Saturday, July 5, 2003

Observing near 1st Q at Foothills Park

I had a very enjoyable evening last night, tagging along with Rich Neuschaefer for an evening of observing at Foothill Park in Palo Alto. It had been several years since I'd attended one of these events, hosted by Peninsula Astronomical Society member William Phelps. It is a rather cozy area for observing, to our east is the entire expanse of the south bay, looking east across from Mt. Hamilton to Mt. Diablo and north, and up to Montebello to the west. The site offers very scenic views, but is only open to Palo Alto residents. As an amateur astronomer with a telescope, I was allowed in to support the program. Several other TACos were there... and others who are active PAS members that I rarely see.

I had brought out my 8" CPT, the 10" is still on loan. The 8 is an f/6.9, and really performs on the moon and planets. The moon was the early favorite target. Seeing was rather soft though, and even with the 20 Nagler (70x) it looked as if it were under a slow moving stream. But the views were still pleasing, even when I bumped it up to the 12 Nagler (116x)... and the public loves the moon. Views of Jupiter were a waste, the public saw a 70x almost featureless slightly fuzzy ball with four pinpoint around it.

The best views I had were of the big globulars. M13 put on a great show, as did M3 and M5. People were fascinated with these objects. I think M5 was the best at 70x, and shared the field with the nice double star 5 Serpentis. People were able to enjoy the globular at over 24,000 LY and realize that the double star at only 80 LY was really incredibly closer. It helps them realize the view really covers tremendous distances.

I finished the night turning the 8" toward the small globulars in Sagittarius that I had been hunting with 10x50 binoculars a few night before. Of course they showed much more easy in the 8". I picked off NGC 6638, NGC 6642, NGC 6624, NGC 6659, NGC 6528 which shared the FOV with NGC 6522, and NGC 6652. They were all obvious, without the need for charts (I'd spent enough time with binos that I knew where to look).

Other objects that showed well were M22, M4, Alberio, and M28, the Ring and Dumbell.

It was a very friendly and relaxing evening. If you have an opportunity to attend, Foothill Park can be a good observing site.

Thursday, July 3, 2003

NGCs in 10x50 binos from Montebello

I wanted to get out, since the sky looked so good, but I did not want to take my 18" scope, and my 10" is loaned out. So, I threw my binocular mount, Adlerblick 10x50's and Tirion Skyatlas 2000 into the car and headed for Montebello. Pulling into the lot I was surprised at the number of people that were there... only few posted their intentions to go. It was a nice friendly group.

I hadn't use the bino mount for about a year, and really had not ever used it to do any "serious" observing. I began on the Messiers, which I found generally easy to pick off. I recall M22, M4, M28, M54, M55, M75, M29, M52, M27, M70, M81/M82, M51, M16, M17 and others. The Sagittarius Star Cloud was absolutely stunning.

The Wild Duck (M11) was obvious, and so was M26, but there was a third smudge. Turned out to be NGC 6712, an elongated looking globular cluster of 7.2 arc-minutes and visual mag 8.2. I thought it was pretty neat, and decided to see which globulars on the Tirion SA 2000 I could find with binoculars.

They included NGC 6569 at 5.8 arc-minutes and mag 8.7. Of the two NGC globulars above the tip of the Teapot's spout, I could identify NGC 6522, but NGC 6528 eluded me.

This seemed like great fun to me, as I felt as if I were trying to id dim galaxies, and used the same techniques.

I kept at it until about 1 a.m., picking up other globs - NGC 6624 (5.9' & 8.1m), NGC 6652 (3.5' & 8.9m) and NGC 6638, which was fairly tough (5' & 9.2m). The most difficult were NGC 6642 (4.5' & 9.4) above M22, NGC 6717 (7' & 9.2m).

Observing all these NGCs in binoculars surprised me.

I most enjoyed two particular views - M7 is just such an amazingly large open cluster, binocs really do it justice. The hands down most beautiful view the entire night in the binocs was NGC 6231 and the entire area around it.