RCW 2 (Seagull nebula), VdB 90, VdB 91, VdB 92, VdB 93, VdB 95 a.o. in Monoceros and Canis Major

          © Velimir Popov & Emil Ivanov 2016
  Size: 2000 px      
The Seagull Nebula (RCW 2, Gum 1 or Sh2-292 - 296), sometimes mistakenly known by the initials IC 2177 is a diffuse nebula visible on the border between the constellations Canis Major and Monoceros. The nebula is situated about 9 degrees to the northeast of the star Sirius and extends for two degrees to the NNE-SSW, in an area very rich in hot blue stars making part of the stellar association Canis Major OB1 to which it was initially assigned the abbreviation Canis Major R1 due to the presence of numerous reflection nebulae. Some of them are catalogued by Sidney van den Bergh in his VdB catalogue under different numbers (please see the annotated mouseover). From astronomical point of view the object is a large H II region with an active star formation, as evidenced by the presence of numerous infrared and X-ray sources associated with young stars or stars in formation. In its surroundings you can observe as well a few open clusters (also annotated). The image above doesn't cover the entire Seagull Nebula. The southern part of this region can be seen here. A 3 panel mosaic (respectively an annotated mouseover) can be found just below:

Image details:


Center of field RA 07:05:28 (h:m:s)
Center of field DE -10:50:13 (deg:m:s)
Size 1.93 x 1.31 (deg)
Pixel scale: 2.99 (arcsec/pixel)
Orientation: Up is 105 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: 25 Nov., 7 Dec. 2016
Location: IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exp. Details: L: 7x10, R:7x10 min, G:7x10 min, B:7x10 min, Bin 2, Total Exposure Time - 280 min. (4:40 h)
More details: Dark and flat frames reduction
Processing: PixInsight / PS
Copyright: Velimir Popov and Emil Ivanov 2013 - 2016. All Rights Reserved
e-mail: info@irida-observatory.org
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