Berkeley 91, IC 1369, PLN 89 - 0.1 in Cygnus
  Size: 1800 px      
 
© Velimir Popov & Emil Ivanov 2011 - 2017

This is a part of the contellation of Cygnus, about 1.95 x 1.3 deg., situated about 3.5 ° northwest fron Deneb (Alpha Cygni). On the image can be spotted open clusters IC 1369, Berkeley 91, as well as the tiny planetary nebula PLN 89 - 0.1 (see mouseover). The latest is also catalogued as Sh1-89, or PK 089.8-00.6. A magnified crop centered on this nebula can be seen below:

Image details:

Annotation
Center of field RA 21:13:36 (h:m:s)
Center of field DE +48:23:07 (deg:m:s)
Size Size: 1.95 x 1.3 (deg)
Pixel scale: 2.03 (arcsec/pixel)
Orientation: Up is 248 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
Dates/Times: 16.Sep 2017
Location: IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exp. Details: L:4x5min., R::4x5 min, G::4x5 min, B::4x5 min, Bin 1, Total Exposure Time - 80 min (1:20h).
More details: Dark and flat frames reduction,
Processing: PixInsight / PS
 
Copyright: Velimir Popov and Emil Ivanov 2013 - 2017. All Rights Reserved
 
e-mail: info@irida-observatory.org
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