Sh2-147, Sh2-148, Sh2-149, Sh2-152, Sh2-153 in Cassiopeia and Cepheus




© Velimir Popov & Emil Ivanov 2015
Size: 1800 px
This image covers some 1.64 x 1.25 deg on the southeastern edge of the constellation Cepheus and northwestern Cassiopeia. Sh 2-147, Sh 2-148, and Sh 2-149 form one of the two cores of the 105 thousand solar mass molecular cloud [UUT2000] Cloud A. The other core is associated with Sh 2-152 and Sh 2-153. This molecular cloud may be interacting with the supernova remnant SNR G109.1-01.0 (CTB 109). The complex is located on the Arm of Perseus at a distance of 5500 parsecs (17930 light years). According to the Avedisova Catalog, responsible for ionizing the gases of the complex would be a blue star of spectral class O8V and a blue star of class B0V. The open clusters King 10 and King 18, as well as six sources of infrared radiation are also located near this system. Among these, the 2MASX J22555978 + 5814424 source stands out, coinciding with a young stellar object, which emissions are linked to the wavelength of carbon monoxide and ammonia.

Image details:


Center of field RA 22:56:11 (h:m:s)
Center of field DE +58:30:42 (deg:m:s)
Size 1.64 x 1.25 (deg)
Pixel scale: 2.84 (arcsec/pixel)
Orientation: Up is 66.4 degrees E of N
Charts and image details obtained from
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
Dates/Times: 29.08.2019; 5.09.2019
Location: IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exp. Details: L:6x10 min; R:6x10 min, G:6x10 min, B:6x10 min; Ha:6x15 . Bin 2 Total exp.time: 330min
More details: Dark and flat frames reduction
Processing: PixInsight / PS
Copyright: Velimir Popov and Emil Ivanov 2015. All Rights Reserved
click tracking