Object Notes:

• Constellation: Coma Berenices
• Location: RA:12h 50m 24.0s Dec:+25d 30' 00" Epoch 2000
• Size: 10.4 x 7.2 arc-minutes
• Magnitude: 9.4
• Type: Spiral Galaxy
• AKA: UGC 7989

Instrument:

Ritchey-Chretien 32" Telescope

Focal Ratio:

f7.2 (prime focus)

Camera:

SBIG STL-11000 CCD camera
(See product review in July, 2004 issue of Sky & Telescope magazine.)
with Astrodon Tru-Balance color filters.

Exposure:

15 x 5 minutes Luminance unbinned
6 x 5 minutes each R/G/B, all unbinned

Guiding:

Off-Axis with STV Autoguider (Santa Barbara Instrument Group)
(See product review in May, 2003 issue of Astronomy magazine.)
See Photo/Guiding Equipment.

Date:

3/11/05

Post Processing:

CCDSoft, CCDSharp, MaxIM DL, Photoshop CS