VdB 31, B26, B 27, B 28 in Auriga

  Size: 1800 px      
© Velimir Popov & Emil Ivanov 2017
VdB 31 is a reflection nebula, visible in the constellation Auriga. The nebula surrounds a seventh-magnitude star HD 31293 (or AB Aurigae). Close to VdB 31 there are dark nebulae, cataloged as B 26, B 27 and B 28 (see annotated mouseover), which mask the light of the stars coming from the regions behind the nebulous complex. AB Aurigae is a well known and intensely studied star because of its protoplanetary disk with a particularly complex structure, apparently organized in a spiral shape with two arms of the radius of more than 230 and 330 AU respectively. The distance to the star, and therefore also of the associated nebula structure is about 144 parsec(470 light years), a distance similar to that of the regions closest to Taurus dark cloud complex.

Image details:


Center of field RA 04:54:52 (h:m:s)
Center of field DE +30:35:38 (deg:m:s)
Size 82.2 x 57.5 (arcmin)
Pixel scale: 2.99 (arcsec/pixel)
Orientation: Up is 271 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: 1 Nov. 2011
Location: IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exp. Details: L:10x10min., R:6x10 min, G:6x10 min, B:6x10 min, Bin 2, Total Exposure Time - 280 min (4:40h).
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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