Horsehead M64 Horsehead

(Click on image for Full Resolution)

(Click here for my previous best with my C14 - 04/25/2001)

Date: May , 2008
Exposure: LRGB - 930m : 390m : 375M : 510m
62 x 900s L, 26 x 900s R, 25 x 900s G, 34 x 900 B
Processing: CCDAutoPilot4 used to collect data over multiple nights. CCDSoft for image acquisition, CCDStack on a x64 Vista machine for Image calibration, Astrodon LRGB filters (35 flats each L,R,G,B, Bias subtracted and Sigma Clip combined, 65 bias frames Sigma Clip combined, 40 x 900s darks Sigma Clip combined, 3), alignment, normalization, FITS master files creation, and RGB raw TIFF creation. Photoshop CS2 for final LRGB processing, final layers adjustment and jpg conversion for the website.
Conditions: Good to Excellent, Mag 6-7 Skies
Scope: RCOS 10" Astrograph
Camera: SBIG ST-10XME, -25°
Comments: It takes lots of data with a 10" scope to get the outer dust bands. Collimation is still an issue and although it is close, it will need to be tweaked to get the best performance out of this RCOS astrograph.