IC 1848 and IC 1871 (Soul Nebula)

  Size: 2000 px      
© Velimir Popov & Emil Ivanov 2015
IC 1848 (also designated as Sharpless 2-199, LBN 667), or Soul Nebula is emission nebulae in Cassiopeia. Some sourses point IC 1848 to be the open cluster at the body (center left on the image). Several smaller open clusters are also embedded in the nebula: CR 34, 632, and 634 (in the head). The small emission nebula IC 1871 is present just below of the head (see the annotated mouseover). This is a very large HII region, whose distance is estimated to be about 7,600 years light from us. Its gas is illuminated by the stars of the clusters and associations of nearby stars (among which 33 Cr and 34 Cr - two very large open clusters with little concentration, formed by blue giant stars born from the gas of the nebula). The light is then re-emitted by the nebula in red color, typical for the emission lines of hydrogen H-alpha. In his area is presented a very active star formation. This is a two panel mosaic. 


Image details:


Center of field RA 02:54:39 (h:m:s)
Center of field DE +60:24:25 (deg:m:s)
Size 2.02 x 1.61 (deg)
Pixel scale: 5.99 (arcsec/pixel)
Orientation: Up is 15.5 degrees E of N
Charts and image details obtained from Astrometry.net
Optic(s): ASA 12" Astrograph @ f/3.6 (Newton)
Mount: ASA DDM85 Standard
Camera: SBIG STL 11000 M
Filters: Luminance, Red, Green, Blue, Astronomik filters, 8nm Ha Baader filter
Dates/Times: Oct. - Nov. 2016
Location: IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exp. Details: L: 14x10, Ha: 18x15 min, R:9x10 min, G:8x10 min, B:8x10 min, Bin 1, Total Exposure Time - 660 min. (11:00 h), two panel mosaic.
More details: Dark and flat frames reduction
Processing: PixInsight / PS
Copyright: Velimir Popov and Emil Ivanov 2013 - 2015. All Rights Reserved
e-mail: info@irida-observatory.org
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