sponsored by psychohistorian.org
Type: galaxies (interacting), E/S0
Mag: B=13, V=?
Size: 1.819′ x 1.445′
Discovered in 1788 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "pB, pL, iF, resolvable."
In the 5th edition of Webb's Celestial Objects for Common Telescopes it is described as "faint, guide to 7.5 mag pair following, from which a straight line of small stars extends."
Listed as No. 136 in Arp's "Atlas of Peculiar Galaxies" (Astrophysical Journal Supplement, vol. 14, 1966.) He remarks "faint streamers off one end of eastern galaxy."
Burnham calls it a 12.8 mag elliptical galaxy in Bootes, measuring 0.7' x 0.3', which is bright, elongated, suddenly brighter in the middle, with faint extensions on the southeastern side. A bright double star, Sh 191, lies 8' east.
The RNGC (Sulentic and Tifft 1973) notes that this is a 13.0 mag galaxy. Their coded description reads SLEL,BM.
Steve Coe, using a 13" f/5.6, notes: "Pretty bright, pretty small, elongated 1.5 X 1 in PA 90 and much brighter in the middle at 100X. Raising the power to 220X shows off a stellar nucleus. There are two very faint companions to the east."
= Arp 136
star cats: 7'.97 WNW of primary of ADS 9474 (V=6.8,7.6; 41"; 343)
15cm - f, W of wide pair.
- mod f & vsm W of wide pair of *s. 35"x25", elong E-W w/mod sharp concen
to consp *ar nuc. BS, 15May1991, Texas Star Party.
25cm - vsm, pa90?, 0'.7x0'.3. sm, sharp, prob *ar nuc. well-def halo.
30cm - found 8' W of nice m6.5 1' dbl. quite sm, sl less than 1' diam w/mottled
halo. 20" core. fair concen.
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.