astroimages
Darin E. Fields' Astrophotography Pages
 

NGC 891: Galaxy in Andromeda

Right Ascension: 2 : 22.6 (hours : minutes)
Declination: +42 : 21 (degrees : minutes)
Apparent Magnitude: 10.0
Apparent Diameter: 13.5 (arc minutes)
More information on NGC 891

Exposure: 90 Minute LRGB exposure: L=30 minutes (6 x 180 sec.), R=20 minutes (2 x 600 sec.)., G=20 minutes (2 x 600 sec.), B=20 minutes (2 x 600 sec.)
Camera: SBIG ST-237 @ -15c
Guiding: SBIG ST-4
Telescope: 8" Newtonian @ f/4
Mount: Losmandy G-11
Processing: Maxim/DL, Photoshop 6.0
Date: 9/07/02
ngc891-lrgb-4:
Exposure: 20 Minute LRGB exposure (L=5 min., R=5 min., G=5 min., B=5 min.
Camera: SBIG ST-237
Guiding: SBIG ST-4
Telescope: 8" Newtonian @ f/4
Mount: Losmandy G-11
Processing: Maxim/DL, Photoshop 6.0
Date: 9/10/01
ngc-891-rgb: