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Acquisition

Processing

Comments

Date: 08/05/2010

DeepSkyStacker

Name: M3,  Globular Star Cluster.

M3 is a rich globular cluster with over a half million stars and a estimated total mass of 800,000 Suns.

Seeing was poor, however I was testing the mount and guiding to overcome some problems I had been having.

 

Location: Greenwood - Backyard Stacking Mode:  Mosaic
Camera: Canon 20D - LP Filter Removed Alignment Method:  Automatic
Optics: Mead LX200R. Stacking Mode:  Mosaic
Exposure:  1600ASA @ 4 Minutes x 13 RGB BKG Cal:  Yes
Total Exposure:   54 Minutes Per Channel Cal:  No
Guiding: DSI on Skywatcher ED80 . Method:  Median Kappa-Sigma K=2/I=5
Filter: Astronomik CLS-CCD Darks:  Yes (Only Three)
Focus: Bahtinov Mask Flat:  No
  Full Details

Position in Sky

PhotoShop CS4

RA (J2000):  13h 42.4m Levels, Colour Balance, Curves, Saturation Scaling, jpeg Conversion.
DEC (J2000):  +28d 23min
Constellation:  Canes Venatici
Distance:  34,170 light Years