Gathering of Winter Nebulae- Cropped Version
Characteristics:
Size: The
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"
Description:
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)
Filters: 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
Please
note: Graphics on this website
may not be reproduced without author permission.
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