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M14 in Ophiuchus

 

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Scope: C8 f/7.5; Location: Laguna Mountains, CA;  28 June 2008; Camera: Artemis285

Exposure: 10 x 3 min Luminance exposure (bin 1x1) with Baader IR Block Filter; 8 x 2 min RGB (bin 2x2)

Processing: Images were captured Artemis Capture (as FITs). Aligned/stacked and dark subtracted in Astroart with Sigma Combine. Luminance and Color channels were scaled and rough color balanced in Astroart.  Channels were co-registered in Astroart. The 3 minute IR block exposures were used for the main luminance construction with level adjustments and curves to bring out object features. LRGB combine was done in Photoshop. G2V  factors applied to color channels.  Final Image size is approximately 1392x1040

This image was guided; North is up. The image was taken with fairly good conditions at a dark site.   M14 is one of 7 Messier Globular Clusters in Ophiuchus. The others are M9, M10, M12, M19, M62,M107.  M14 is the most distant of the 5 at about 30,000 light years form Earth. But it is likely the most Luminous at roughly 400,000 times more luminous then our Sun. This image replaces an earlier image that can be seen in the Archives here. Horizontal FOV is 20'

Image Center is approximately - Equatorial 2000: RA: 17h 37m 36.0s Dec: -0315'00"

 

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

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