ASTRO IMAGES By Doug Wheeland


        M 3 - Globular Cluster in Canes Venatici

M 3                     EQUIPMENT
Telescope ----  12.5" RCOS RC at 114" FL
Mount --------  Astro-Physics AP1200
Camera -------  SBIG ST8E/CFW8
Guided -------  SBIG AO7

10 Jul. 2003
20 min. Total
10 min. Sub-Exposures
Acquired Using MaxIm CCD

Data Reduction Using MaxIm DL
Finished Using Adobe Photo Shop

Star Ranch Road Observatory
South Western Colorado Springs
Elevation 6500 Feet


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One of the brightest clusters in the northern hemisphere, M 3 has about 500,000 stars.  The stars are mostly very old and about 34 thousand light years distant.

All Images Copyright Douglas R. Wheeland

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