sponsored by psychohistorian.org
RA: 20h 25m 6.9s
Dec: −24° 48′ 30″
Ch: MSA:1385, U2:343, SA:23
Type: galaxy, Sbc
Mag: B=12, V=11.3
Size: 3.548′ x 2.57′
NGC 6907. See NGC 6908 which is a superposed companion galaxy.
Synonyms: H III-141
Discovered in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "vF, cL, lE, lbM, appears the same in 240 power."
pF, 2'x1', spiral.
Burnham calls this a 12.1 magnitude barred spiral galaxy in Capricorn, measuring 2.5' x 2', which he describes as "considerably faint, considerably large, slightly elongated, very gradually a little birghter in the middle, S-shape spiral."
The RNGC (Sulentic and Tifft 1973) notes that this is a 12.0 mag galaxy. Their coded description reads SB,HISBBAR&ARMS,WD FDIF OUTER ARMS W/ KNS.
A supernova erupted in this galaxy in 1984 (15.0pg)
This face-on barred spiral appears as a round hazy spot in a 10-inch, showing a brighter nucleus.
Tom Lorenzin, in the e-version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "12.1M; 2.5' x 2' extent; faint ellipse with little brighter center; 10M star 2' E of core; neat little pair of 12M stars (12" separation) 2.5' SSW of core."
Steve Coe, using a 13" f/5.6, notes: "Pretty faint, pretty large, round and somewhat brighter in the middle at 100X."
15cm - sm, mod f, round, 1' diam. in dk sky.
- mod br oval W of m11.0 *. 3'x2' in pa70, lgr than sep to * E. elong *ry 1'.5x0'.4 core that has little concen and only occas-vis vf *ar nuc. can't see arm on NE side as per 25cm, but do see sim dk bar in SW side elong ~E-W. pairs S & SW about m12-13. BS, 8Sep1991, Anderson Mesa.
25cm - 1'.75x1' in pa90. seems to be a bar w/circ core and tapered halo. on NE flank a dk lane intrudes w/br smlr bar torn off from main halo at an angle (pa~120). core of main part has vf *ar nuc. SW ~3' are two pairs: farther one is brtr and closer. sketch in notes. in dk sky.
30cm - 1'.8x0'.8 in pa70, uneven edges w/f non*ar nuc off-center to NE. uneven concen. *s 3' SW.
Location: Campsite (23 16 South - 29 26 East).
Telescope: Meade 8" 18mm eyepiece, 36 arcmin f.o.v.
Date: August 1998.
Sky conditions: Not very good.
Description: Faint shadow (3 arc minutes), small with a kind of brightness to the nucleus. Slightly elongated north to south, with three stars to the east with a slight resemblance to the constellation Aries?
12-inch f/10 SCT (76x, 218x, 346x)
This nice bright impression was quite a change. This galaxy looks just like a very small miniature Large Magalanic Cloud. Soft elongated oval NE-SW, which is outstanding against the background star field. Higher power shows lots of detail in brighter and fainter texture on its surface. The NE section had a small brighter arc-like patch (like the tarantula attach) imbedded and slightly elongated in a NW direction. Investigation shows that it was NGC 6908.
Alldays (22.50S, 20.12E, 770m).
12-inch f/10 SCT (218x, 346x)
Faint shadow, small with a hind of brightness around the nucleus. Slightly elongated north to south. A supernova erupted it this galaxy just 15 years ago Soft oval in a SW to NE which shows a very uneven surface texture. The core is small and star like. Very hazy around the edges. A 10magnitude star 2arc minutes to the east. The eastern part of the galaxy slope down considerable more and maybe slightly brighter. Asterism just east resembles the constellation of Aries. 20h 26m 11s and -24o54'54"
The Messier objects
The Bennett objects
The Caldwell list
DOCdb is still in beta-release.
Known issues, feature requests, and updates on bug fixes, are here:
Found a bug? Have a comment or suggestion to improve DOCdb? Please let us know!
DOCdb is a free online resource that exists to promote deep sky observing.
You could help by sharing your observations, writing an article, digitizing and proof-reading historical material, and more.
Everything on DOCdb.net is © 2004-2010 by Auke Slotegraaf, unless stated otherwise or if you can prove you have divine permission to use it. Before using material published here, please consult the Creative Commons Attribution-Non-Commercial-Share Alike 2.5 License. Some material on DOCdb is copyright the individual authors. If in doubt, don't reproduce. And that goes for having children, too. Please note that the recommended browser for DOCdb is Firefox 3.x. You may also get good results with K-Meleon. Good luck if you're using IE. A successful experience with other browsers, including Opera and Safari, may vary.