NGC 2903 (UGC 5079) Galaxy in Leo
Located at: RA 09 hours 32 minutes 10 seconds, Dec +21 degrees 29 minutes 58 seconds
Size: 12.6' x 6.0' Magnitude: 9.7 blue Class: SAB(rs)bc I-II HII
North is up
West to the right
14.5" f5 Newtonian reflector
ST-8XME, self-guided, binned 1x1, temp -25c, camera control MaxIm DL 4.56
Lumicon Red filter, 630 minutes (63 x 10 minute subs), 03/3/4/9/10/2013; seeing 3.3-4.2 FWHM per CCDStack
CCDStack 2.66.4490.32361, Photoshop CS5.1
Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)
|Notes:||See the 8" version.
From the NGC / IC Project:Contemporary Visual Observation(s) for NGC 2903
NGC 2903 = UGC 05079 = MCG +04-23-009 = CGCG 122-014 = PGC 27077 09 32 10.0 +21 30 02 V = 09.0; Size 12.6x6.0; SB = 13.6; PA = 17d 17.5": this is one of the brightest non-Messier galaxies. Very bright and large, elongated 5:2 SSW-NNE, 10'x4'. A very faint knot is involved on the NNE side 1.2' from center = N2905. An extremely faint knot is also symmetrically placed opposite the core on the SW end 1.2' from center. The galaxy has a dusty, mottled appearance with knots and arcs easily visible with averted vision. 13": very bright, elongated bright core. Contains a very faint knot at the N end = N2905. 8": bright, large, elongated, bright mottled core. - by Steve Gottlieb NGC 2905 = N2903 09 32 11.9 +21 31 05 17.5": very large knot or arc at the NNE edge of a spiral arm in N2903. Easily visible with averted vision. 13": very faint knot or arc at NE edge of arm of N2903. Discovered by WH (I 57). His description for N2903 is "Two, at 1' distance. Both cB, cL, appear like one mE." I'd be surprised if the faint starcloud in the spiral arm would be described as "cB". In sweep 244, John Herschel's description reads: "I 56 is vB, E, gbM, r. Long attention shows a vF, L, R, neb attached nf." This decription clearly refers to the large starcloud or HII region in a spiral arm of N2903. Listed as nonexistent in the RNGC. - by Steve GottliebHistorical Research Notes / Correction for NGC 2903
NGC 2905 is the northeast arm of NGC 2903. JH has several observations of it in that position, as well as a sketch. The only slight mystery here is why WH made it one of his first class nebulae, ranking it in brightness with the central portion of NGC 2903 itself. - Dr. Harold G. Corwin, Jr. NGC 2903. See NGC 2905. - Dr. Harold G. Corwin, Jr.