Sh2-115 and Sh2-116 in Cygnus




© Velimir Popov & Emil Ivanov 2020
Size: 2000 px
Sh2-115 is a faint emission nebula in Cygnus, just about 1.5 degrees northwest of Deneb, the brightest star of the constellation. Inside Sh2-115 can be found the small open cluster Berkeley 90 (see mouseover). For long time Sh2-116 has been considerd a planetary nebula (even has its proper designation Abell 71, PK 085+04.1,or PN G084.9+04.4. But the recent studies describe it as a small patch of emission nebula.

Image details:


Center of field RA 20:34:31 (h:m:s)
Center of field DE +46:54:26 (deg:m:s)
Size 1.49 x 1.04 (deg)
Pixel scale: 2.68 (arcsec/pixel)
Orientation: Up is 90.7 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: 31.Oct.2011
Location: IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exp. Details: R:6x10 min, G:6x10 min, B:6x10 min; Ha:6x15. Bin 1 Total exp.time: 270min 4:30 hrs
More details: Dark and flat frames reduction
Processing: PixInsight / PS
Copyright: Velimir Popov and Emil Ivanov 2020. All Rights Reserved
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