IC 1805 and Comet Jacques

IC1805 and Comet Jacques
All Images Copyright Steve Cannistra

Please click here or on image above for a medium-sized view (40%)

Magnitude:  Not determined
Size: FOV of full frame image (uncropped) = 3.9 x 3.9 degrees
RA: 2h 32m 41s (J2000)
Dec: 61 degrees 27' 25" (J2000)
PA:  +191 degrees

IC 1805 is a young star cluster surrounded by Ha emitting nebulosity, located in the constellation Cassiopeia.  The above image shows IC 1805 accompanied by Comet Jacques, which moved through this region on 8/19 and 8/20, 2014.  There is a great deal of interesting detail within IC 1805 that can be best appreciated in Ha light, as shown here in an image that I captured several years ago.  More information about this region can be found at Rob Gendler's website.

Photographic Details:
Dates:  August 17, 18, 19, 2014
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 narrowband and LRGB filters, 50mm square
Exposures:  IC 1805: Ha, 4 hours; RGB, total of 4 hours; Comet Jacques, LRGB total of 1.5 hours.
Post-processing:  Calibrated, aligned, and stacked in Maxim, followed by DDP in ImagesPlus (IP).  Further processing in Photoshop CS (16 bit format).   I also used the nice tutorial by Bernard Hubl for tips regarding acquiring and processing the comet.
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