Horsehead NGC 7000
The North American Nebula

(Click on image for Full Resolution)

Date: September 21, 2003
Exposure: Ha (3nm) 12000 : 10 x 1200s
Processing: Captured with CCDSoftV5, MaxIm for Image calibration,(16 flats dark subtracted and Sigma Reject combined, 40 bias frames Sigma Reject combined, 20-1200s darks Sigma Reject combined), dead/hot pixel removal, alignment, normalization. Photoshop with OZONE plugin for final processing and jpg conversion.
Conditions: Clear, Mag 3-4 Skies
Scope: AP155EDF, f/7 (1.59 arcsec/pix measured with TheSky), Vixen 102mm Flourite @ f/9 for Guiding. All equipment on a Paramount ME and can be seen here.
Camera: SBIG ST-8XE, -20°, SBIG ST-237A for Guiding
Comments: Started this one after it crossed the meridian and imaged for 3 1/2 hours. To me this is one of the more interesting areas of NGC7000. It is approx. 1600 light years away and is generally classified as a diffuse nebula, or one that is made up of clouds of interstellar matter, namely thin but widespread agglomerations of gas and dust.