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M103 in Cassiopeia



Scope: C8 f/6; Location: Del Mar, CA;  23 August 2005; Camera: Artemis285

Exposure: 13 x 60 sec Luminance exposure (bin 1x1)with Baader IR Block Filter; 10 x 40 sec RGB (bin 2x2)

Processing: Images were captured Artemis Capture (as FITs). Aligned/stacked in Registax 3 and saved as FITS. Luminance and Color channels were scaled and rough color balanced in Astroart. Channels were co-registered in Astroart. The 60 sec exposures were used as the main luminance with level adjustments and curves to bring out dim stars. Final LRGB combine was done in Photoshop.  Color balancing and final touches were done in Photoshop. SGBNR was used to smooth background noise on the final result. Final Image size is approximately 1392x1040

This image was guided; North is up. M103 is one of the Milky Way's more remote clusters (from Earth) at about 8,000 to 9,000 light years distant. It contains a noticeable Red Giant roughly central t the cluster an it is one of the 40 - 60 member stars in this cluster (all other stars in this field being either foreground or background stars. The binary pair (Struve 131 - largest star - upper right in the cluster) is not a cluster member. This image replaces an earlier image that can be seen in the Archives here. Horizontal FOV is 15'

Image Center is approximately - Equatorial 2000: RA: 01h 33m 29s Dec: +6038'47"


All images and content remain the property of Jim Thommes - copyright 2003 - 2012

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