Gathering of Winter Nebulae- Cropped Version

All Images Copyright Steve Cannistra

Please click here for a medium cropped version
Please click here for a larger cropped version
Please click here for the small widefield version
Please click here for the medium widefield version

Size: T
he FOV shown here is approximately 3.9 x 3.9 degrees, at an image scale of 3.5"/pixel
RA (J2000): 5h 22m 44s
Dec (J2000): +33 degrees 24' 43"

The constellation Auriga is host to a wide swath of Ha emission nebulae visible during the winter in the Northern Hemisphere, including IC405 (Flaming Star Nebula), IC 410, IC 417, and NGC1931.   In this cropped version of the original widefield image, IC405 is on the left, and IC410 is on the right.  Please check the larger sized images in the links above for more detail.  More information about this interesting region, including the origin of the star AE Auriga that is responsible for the blue reflection component of IC405, can be found on Rob Gendler's site as well as on the APOD site.

Photographic Details:
Dates:  January 14 and 15, 2012
Scope:  Takahashi FSQ106 at f5 on the Takahashi NJP Mount
Autoguider:  SBIG ST-402 with 60mm guidescope, focal length 227mm
Camera:  Apogee U16M at -20C, with 7 position 50mm square filter wheel (Apogee FW50-7S)
Baader Ha narrowband filter; Baader RGB filters
Exposures:  Ha, 4 hours; R, 3 hours; G, 3 hours; B, 4 hours, all unbinned.  Total exposure 14 hours.  Ambient temperature was around 8 degrees F during this imaging session (glad that I had automation software!)
Post-processing:  Calibrated, aligned and stacked in Maxim, followed by DDP in ImagesPlus (IP).  Further processing in Photoshop CS5

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