NGC 5964 (UGC 9935) Galaxy in Serpens

Located at: RA 15 hours 37 minutes 37 seconds, Dec +05 degrees 58 minutes 18 seconds

Size: 4.2' x 3.2'  Magnitude: 12.16 photographic Class: SB(rs)d

North is up

West to the right


 14.5" f5 Newtonian reflector


 ST-8XME, self-guided, binned 1x1, temp -15 & -20c, camera control MaxIm DL 4.56


Lumicon Red filter,  790 minutes  (79 x 10 minute subs), 06/24/25/26/27/28/2014; seeing 2.8-4.0 FWHM per CCDStack


CCDStack 2.78.5280.24003, Photoshop CS5.1


 Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)


From the NGC / IC Project:

Contemporary Visual Observation(s) for NGC 5964
NGC 5964 = UGC 09935 = MCG +01-40-008 = CGCG 050-047 = IC 4551? = PGC 55637
15 37 36.3 +05 58 25
V = 12.0;  Size 4.2x3.2;  SB = 14.7;  PA = 145d

17.5": fairly faint, fairly large, irregular glow, ~2.5' to no well-defined 
edges.  Contains a brighter core which is also ill-defined but appears 
elongated.  This face-on galaxy has an unusual mottled appearance with brighter 
spots with averted vision (extremely faint superimposed stars?).  A couple of 
faint stars are clearly superimposed which also confuse the view including a mag 
14.5 star off the N edge and a mag 15 star (double on DSS) is within the S side 
of the halo.

Discovered by JH (h1929).  His unusual description reads: "vF, vL, R, vgbM, r, 
diam = 9s of time.  With long attention it is seen to be composed of excessively 
minute stars like points rubbed out; and is in fact a globular cluster, but to 
see it thus requires long and perfect tranquility of the eye.  A very 
interesting object."  NGC position (from d'A) is an exact match with U09935 = 

Swift's IC 4551 (List XII) is probably identical, although Swift's RA was only 
given roughly to a tmin and is about 3 tmin too small.

- by Steve Gottlieb
Historical Research Notes / Correction for NGC 5964
NGC 5964 = IC 4551, which see.  There is nothing wrong with d'A's observation
of this large, nearby galaxy.  But Swift's position, from over a third of a
century later, is well off.  His description, though, is as appropriate as 
d'A's. - Dr. Harold G. Corwin, Jr.