Telescope:

 8" f5 Newtonian reflector

Camera:

 ST-8XME, self-guided, binned 1x1, temp -25c, camera control MaxIm DL 4.56

Image:

Lumicon Red filter, 800 minutes (80 x 10 minute subs), 11/25/26/27/2011; seeing 2.4-3.5 FWHM per CCDStack

Processing:

CCDStack 2.53.4349.21251, Photoshop CS 5.1

Location:

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

Notes:

This image replaces a 260 minute red-filtered image from 11/25/2006.

From the NGC / IC Project:

Contemporary Visual Observation(s) for NGC 1023

NGC 1023 = UGC 02154 = MCG +06-06-073 = CGCG 523-083 = Arp 135 = 
PGC 10123
02 40 23.8 +39 03 48
V = 9.4;  Size 8.7x3.0;  Surf Br = 12.8;  PA = 87d

18" (8/1/05): at 225x, this striking galaxy appeared very bright,  
large, very elongated 4:1 E-W, ~4.5'x1.0', though can possibly be  
traced further with averted vision.  Dramatic, sharp concentration  
with an unusually bright, oval core.  Two mag 14 and 15 stars are  
superimposed off the west side of the core and a mag 14 star is off  
the east side.

17.5" (12/8/90): bright, large, very elongated 7:2 E-W, very bright  
core, almost stellar nucleus.  A large fainter halo increases the  
dimensions to 7'x2'.  Two 15th magnitude stars are superimposed on  
the east and west ends.

13" (12/24/84): very bright, impressive, elongated ~E-W, bright core,  
stellar nucleus.

8" (11/8/80): fairly bright, bulging bright core, lens-shape.

- by Steve Gottlieb