Horsehead NGC2264
The Cone Nebula

(Click on image for Full Resolution)

Date: November 10, 2003
Exposure: Ha (3nm) 240m : 12 x 1200s
Processing: Captured with CCDSoftV5, MaxIm for Image calibration,(20 flats dark subtracted and Sigma Reject combined, 40 bias frames Sigma Reject combined, 12-1800s darks Sigma Reject combined), dead/hot pixel removal, alignment, normalization. Photoshop CS for final processing and jpg conversion.
Conditions: Clear, Mag 3-4 Skies
Scope: AP155EDF, f/7 (1.671 arcsec/pix), 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: This is the part of the "Cone" that gives it its name. It is a diffuse Nebula and Open Cluster in Monoceros.