Sh2-207 and Sh2-208 in Perseus and Camelopardalis




© Velimir Popov & Emil Ivanov 2015
Size: 1600 px
This image covers some 1.46 x 1.06 deg on the border between constellations Perseus and Camelopardalis. Two Sh2 objects can be spotted on the image. Sh2-107 (in the middle), despite its planetary nebula appearance is an HII region ionised by an O9.5 IV star (MFJ SH 2-207 1). Sh2-208 (much smaller, at the left) is ionized at least by three stars: MFJ SH 2-208 3 (O9.5V), LS V +52 19 (O9.5 V) and MFJ SH 2-208 6 (B0V). Avedisova places Sh 2-207 and Sh 2-208 together in the star formation region SFR 151.32+1.99 along with the radio source KR 198. The distance to Sh2-107 is estimated to be 3400 pc (Pismis, Hasse,Quintero. 1991); and this to Sh2-208 - 7600pc (Blitz, Fich,Stark. 1982)

Image details:


Center of field RA 04:20:02 (h:m:s)
Center of field DE +53:09:36 (deg:m:s)
Size 1.46 x 1.06 (deg)
Pixel scale: 2.84 (arcsec/pixel)
Orientation: Up is 246 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: 8.10.2018
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
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