Horsehead IC 342 Horsehead

(Click on image for Full Resolution)

Date: November 21-22, 2003
Exposure: LRGB : 180:150:150:195
36 X 300s L, 10 X 900s R,G and 13 X 900s B
Processing: CCDSoftV5 for image acquisition, MaxIm for Image calibration, alignment, and normalization. 16 flats Sigma Reject combined, 40 bias frames median combined, 20 1800s darks median combined. Photoshop for final balance and jpg conversion.
Conditions: Average, Mag 3-4 Skies
Scope: AP 155 EDF, f/7 (1.671 arcsec/pixel)
Camera: SBIG ST-8E/CFW-8, -20°C
Comments: This is a nice face on galaxy located in the constellation Camelopardalis. Its location in the sky keeps it in my light pollution dome for most of its transit. This was shot over two nights. I collected the first color set on the 21st and finished with both the luminance and second color set on the 22nd. This one took quite a few hours to process while attempting to remove gradients and light pollution.