NGC 2905

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 Gottlieb

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.

As with all corrections to the NGC and IC Catalogues, there is a certain margin
for error, even though the evidence supporting the correction may be strong and
compelling. It is with this in mind that we ask the user to use this information
as 'Most Probable', but never to assume the correction is 'Absolute'.  All
published corrections are based on an exhaustive 'paper chase' of the historical
record back to the original discoverer's published notes/papers, and are
therefore based upon the historical accuracy (or inaccuracy) of those particular
notes/papers. In short, Caveat Emptor! - Robert E. Erdmann, Jr.