IC 1805 (Heart Nebula) and IC 1848 (Soul Nebula)

IC1805 and IC 1848
All Images Copyright Steve Cannistra

Please click here or on image for a medium size image (35%).
Please click here for a larger image (50%).
Please click here for the largest image (65%).

Magnitude:  6.5 (open star clusters)
The FOV shown here is approximately 5.0 x 2.6 degrees, at an image scale of 3.5"/pixel.
Distance: 6,150 light years
RA: 2h 32m 41s
Dec: 61 degrees 27' 25"

IC 1805 and IC 1848 are young star clusters surrounded by Ha emitting nebulosity, located in the constellation Cassiopeia.  The above image is a mosaic of IC 1805 (left) and IC 1848 (right) taken on two separate dates (details below).  There is a great deal of interesting detail within this image that can be best appreciated on the higher resolution view, as well as in previous images shown herehere, and  here.  Please click here for more information about this object.

Photographic Details:

Date:  December 30, 2006 (IC 1805) and September 2, 2007 (IC 1848).
Scope:  Takahashi FSQ106 at f5 on the Takahashi NJP Mount.
Autoguider:  SBIG ST-402 with e-finder.
Camera:  STL11K -20C.

Baader 7nm Ha filter (50mm unmounted).
Exposures for each panel:  Ha- 12 x 20' = 4 hours per panel; 8 hours total.
Conditions:  Temperature 24 degrees F for IC 1805 and 60 degrees F for IC 1848).
Post-processing:  Calibrated, aligned, and Sigma Clip combined in Maxim, followed by DDP in ImagesPlus (IP).  Further processing in Photoshop CS (16 bit format).
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