M 20                                           

 

The image above is a 1/4 resolution view, 700x525 pixels ~ 0.6 MB.

Click here for a 1/2 resolution view, 1400x1050 pixels ~ 1.5 MB.

Click here for a full resolution view, 2800x2100 pixels ~ 4 MB.

 

Image Information

Object	M 20 by Greg Morgan
Date(s)	July 2007
Optics	RCOS 10 inch f/7 Ritchey-Chrétien Astrograph with a 1,735mm focal length
Mount	Paramount ME
Camera	SBIG STL-11000XM
Guiding	Internal selfguiding with dithering
Field Scale	1.03 arcseconds / pixel
FOV	50' x 35' that has been cropped down to 70% of the native 71' x 49' arcminute FOV
Chip Temp	-15 C
Filter(s)	Astrodon True Balance LRGB I-series 50mm
Location	Sierra Remote Observatories, Shaver Lake California
Exposure(s)	RRGB = 5 x 1200, 5 x 1200, 8 x 1200, 9 x 1200 seconds  (9 hours total)
Binning	All channels at 1x1
Camera control	MaxIm DL 4 / CCDAutopilot 3
Processing software	CCDStack, Photoshop CS2
Image notes	There were lots of firsts that went into making this image.  Thanks to ALL who answered my questions, spent time with me at the scope and loaned me hardware to make this image possible.