sponsored by psychohistorian.org
Type: galaxy, SBb
Mag: B=11.8, V=11.02
Size: 3.89′ x 2.29′
Select a sketch and click the button to view
Select a photo and click the button to view
Discovered by Sir John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "pB, L, psbM, 3' long, 2' broad; either Binuclear or more extended on the N.f. side than on the opposite. No other neb. near it." On a second occassion he called it "B, L, pmE, vsmbM; 100 arcseconds long, 60 arcseconds broad; Unequally bright and exhibiting an approach to the Binuclear form." Herschel tentatively identifies it as Dunlop 519.
Dunlop, J. (1828) A Catalogue of Nebulae and Clusters of Stars in the Southern Hemisphere, Observed at Paramatta in New South Wales. Phil. Trans. Roy. Soc., 118, 113-151. [1828RSPT..118..113D]
This object was observed by James Dunlop from Paramatta, New South Wales, with a 9-inch f/12 telescope. He described it as "a faint nebula, of an irregular round figure, about 30 arcseconds diameter, north of a bright small star."
Recorded in "Observations of the Southern Nebulae made with the Great Melbourne Telescope".
See the discussion of Lithograph M.1.8 for the details.
vF, pL, E 40deg, probably spiral."
De Vaucouleurs (1956) "Survey of bright galaxies south of -35° declination", Mem. Mount Stromlo, No. 13. On photos taken with the 30-inch Reynolds reflector, 20-inch diaphragm: bright inner part 2.3' x 2.1', faint outer regions 4' x 3.2'. Remarks: very remarkable. vBN 0.25'
The RNGC (Sulentic and Tifft 1973) notes that this is a 12.0 mag galaxy. Their coded description reads S,B,BM,SHORTDIF ARMS.
Photo Index by Jim Lucyk: Cat.of South.Peculiar Gal.and Ass. Vol 2 (Arp&Madore, 1987) p8.4.
Steve Coe, observing with a 13" f/5.6, notes: "Pretty bright, pretty large, elongated 2 X 1 in PA 30, suddenly much brighter in the middle at 135X."
POSS: 7'.7 N of m9 *. pair 9' N: 11,11; 12"; pa273, forms skinny S-pointing triangle w/m10.5 * 65" S. gx bar in pa60.
ESO: pa150 overall.
15cm - br oval w/sharp cen @ 80x. 140x: 2'x1' in pa45. mostly mod broad concen except for ridge along maj axis, 1'x0'.1, which has 5" circ core and *ar nuc. seem to be br knots on either side of nuc on maj axis and sfc generally mottled. BS, 14Nov1993, LCO.
30cm - 8' N of m9 *, halfway to pair 1'.5 apart. 1'.8x0'.8 in pa40. tapering ends. sm 10" core showing *ar nuc w/averted vis. pretty well 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.