astroimages
Darin E. Fields' Astrophotography Pages
 

B33: The Horsehead Nebula in Orion

Right Ascension 5 : 41.0 (h:m)
Declination -02 : 28 (deg:m)
Apparent Dimension 6.0 x 4.0 (arc min)

Exposure: A 50 minute composite of 30 minutes (30x 60 sec.) and 20 minutes (10 x 120 sec.)
Camera: ST-237 cooled @ -30c off ambient
Guiding: ST-4 on 90mm @ f/11
Telescope:ST-80 @ f/5
Mount: Losmandy G-11
Processing:Maxim/DL and Photoshop 6.0
Date:12/19/01
b33-2: