NGC 7640 (UGC 12554) Galaxy in Andromeda

Located at: RA 23 hours 22 minutes 07 seconds, Dec +40 degrees 50 minutes 43 seconds

Size: 11.6' x 1.9' Magnitude: 11.9 blue Class: SB(s)c HII

North is up

West to the right

Telescope:

14.5" f5 Newtonian reflector

Camera:

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

Image:

Lumicon Red filter, 920 minutes  (92 x 10 minute subs), 10/12/13/14/15/2013; seeing 3.2-4.8 FWHM per CCDStack

Processing:

CCDStack 2.75.4973.15338, Photoshop CS5.1

Location:

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

Notes:

This object is embedded in a dusty(?) region of the sky, hence the 'mottled' background ... see Bob Franke's image of NGC 7640.

From the NGC / IC Project:

Contemporary Visual Observation(s) for NGC 7640

NGC 7640 = UGC 12554 = MCG +07-48-002 = CGCG 532-017 = CGCG 533-001
23 22 06.6 +40 50 44
V = 11.3;  Size 10.5x2.0;  SB = 14.5;  PA = 167d

17.5": moderately bright, very large, very elongated 4:1 N-S, 7.0'x1.5', large 
slightly brighter middle bulges.  A mag 13.5 star is at the SE edge of the core 
33" from the center.  Bracketed by two mag 11 stars at the N end 3.0' NNW of 
center and just W of the S end 2.6' SSW of center.  An extremely faint mag 15 
star is embedded near the N end.

8": faint, large, very elongated streak N-S.  There are faint stars at both the 
N and S end. 11/8/80

- by Steve Gottlieb