Sunday, August 21, 2011

A Tale Of Two Sites - Part 2

Sh 2-101 20 2 19 59 56.8 35 17 27

12mm 18" NPB - reminiscent of Crescent, but dimmer. Two bright stars embedded in W end of nebula. Brightest portion is to N and E of bright stars, Another bright section runs E of the S star of the pair. More nebulosity is to th S and W of the pair of stars, but much more subtle. This is a very good target.











Sh 2-100 4 3 20 01 50.6 33 30 41 N6857

7mm 18" NPB - planetary appears almost triangular, nearly as distinct without the filter. Elongated slightly NW/SE. But appears to have somewhat triangular shape, with a harder edge running N/S. Star embedded in nebula, but seems offset to the N, which may be an illusion due to a dim northern edge of the shell.











Abell 74 Vul PN 871"x791" 15.8 21 16 52 24 08 51 PK 72-17.1 = PN G072.7-17.1

Abell 74 is interesting in that I found it by mistaking CGCG 471-2 for an edge of it, no filter with 20mm. 12mm w/ UIHC filter gave great gain in smoothness and feeling of an object dark but large, around two bright stars and off of them to the west southwest, while the galaxy was invisible to the northeast.The planetarty is large and devoid of features, an almost uniform surface glowing as dimly as possible. Sometimes it appears as if there are the deepest knots in several places in the object.






N7769/70/71 Peg GX 5.4 12.0:13.8:12.2 23 51 06 20 12 00

NGC
7769 is bright and complex, having a stellar pinpoint bright core, inner and outer halo that appears a tilted spiral. It is an easy galaxy to see detail in. NGC 7770 and NGC 7771 are to its east southeast, both elongated in an east west direction with 7771 much twice the size of 7770 but equal with 7769. Views with 7mm. Excellent find from Miles Paul Atlas of Galaxy Trios. 7771 is long and thin with a bright inner region across much of its length, and a bright stellar nucleus - but the small galaxy appears intrinsically brighter. Estimate sizes at 3x2 for 7769, 4.5x1 for 7770 and 3x1 for the little one.




HCG 092A Peg Hickson 2.2x1.1 12.6 22 36 04 33 56 52 NGC 7320 Arp 319
HCG 092B Peg Hickson 1.9x1.2 13.1 22 35 58 33 57 58 NGC 7318B Arp 319
HCG 092C Peg Hickson 1.7x1.3 13.1 22 36 03 33 58 34 NGC 7319 Arp 319
HCG 092D Peg Hickson 0.9x0.9 13.4 22 35 56 33 57 59 NGC 7318 Arp 319
HCG 092E Peg Hickson 1.1x1.1 13.6 22 35 52 33 56 42 NGC 7317 Arp 319

Stephans
Quintet - all members easily visible. Pair distinctly broken apart. - 7mm.







N7270/71/75 Peg Trio 6.9 13.9:14.6:14.3 22 23 36 32 24 00

All three galaxies show well in 7mm. Nice alignment of a pair of bright stars pointing at group, with one member on one side of a long arc of stars, the other two galaxies on the other side, with one of those being the last to show up.












Abell 78 Cyg PN 113"x88" 13.4 21 35 29 31 41 45 PK 81-14.1 = PN G081.2-14.9

12mm - very large, very difficult, very dim and even.















Jones 1 Peg PK104-29.1 12.1 23 35 54 30 28 00

Large mostly circular shell, looks at first like a faint U with thick uprights. But dim, think of dark nebula, but kind of a backlit glow. Northern edge seems brighter and thicker, especially toward the w.













HCG 099A GX 1.1x0.4 13.9 00 00 37 28 23 04 UGC 12897
HCG 099B GX 1.0x0.9 13.7 00 00 46 28 24 07 UGC 12899
HCG 099C GX 0.8x0.4 14.7 00 00 44 28 24 05 MCG +05-01-021

All three visible with 7mm - however, the pair were difficult to see individually.











HCG 093D GX 0.7x0.6 14.7 23 15 33 19 02 51 NGC 7553:


















HCG 094A GX 1.0x1.0 14 23 17 13 18 42 29 NGC 7578B Arp 170


















PK 94+27.1 K1-16 PLNNB DRA 1.9 m 14.2 99.9 18 21.9 +64 22

7mm barely visible partial disk with central star cent* variable DS Draconis















Abell 61 PK 77+14.1 = PN G077.6+14.7 PLNNB CYG 201" 13.5 19 19 10.1 +46 14 36

12mm OIII barely visible, round, several dim stars embedded near the center.















NGC 6813 SG 3.148 BRTNB VUL 3 m 99.9 99.9 19 40.4 +27 18

Dim star in an oval glow. Responds well to NPB filter..















Sh 2-84 EN SGR 15x3 19 49.0 +18 23

NPB filter 12mm faint glow between two bright stars. The "Little California Nebula" appears a faint, 4' shallow arc of nebulosity bracketed by two mag 8.5 stars. Located 25' ESE of mag 3.7 Delta Sagittae.












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