Single frame of the Sky Crab with VC200L from Dec 04th

[LT]

This M1 is a single shot of 6 min exposure. Again, no dark, no bias, and no flat calibrated. Just convert it to TIFF format from RAW in DPP, then do some adjustment in Level, curve and color balance in PS and finally resized to 1600 x 1067. Same as M46, it was taken at PTC carpark.

Data below for your reference:

Imaging scope: Vixen VC200L (1800mm F9) + 0.72x reducer
Effective photographic focal length : 1280mm
Mounting: Vixen SXP goto equatorial mount
Camera & Settings: Modified EOS 100D + LPS @iso1600, RAW
Exposure: 360 sec = 6 minutes
Guiding: Autoguiding with Mizar GT-68 (68mm, fl 600mm) + QHY5 + PHD
Transparency & seeing conditions: Good transparency (6-7/10) but poor seeing
Temperature: about 12 degrees of C

Thanks for looking.

LT

[ouman]