VdB 143 - reflection nebula in Cepheus

  Size: 2000 px      
© Velimir Popov & Emil Ivanov 2016

VdB 143 ( also catalogued as DG 175, Magakian 864, Ced 194, HD 206135, V433 Cep) is a reflection nebula in the constellation Cepheus. It is located in the central part of the constellation, about 2.5 ° SSE of the star Alfirk. The nebula is illuminated by HD 206135, a blue main sequence star with spectral class B3V, whose apparent magnitude is 8.27. Its distance, determined by measuring the parallax, is about 1190 parsecs (3880 light-years), and thus it is linked to the galactic environment of the association Cepheus OB2.

Image details:


Center of field RA 21:36:27 (h:m:s)
Center of field DE +68:11:13 (deg:m:s)
Size 1.69 x 1.16 (deg)
Pixel scale: 2.99 (arcsec/pixel)
Orientation: Up is 101 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: 27 Jan. 2017
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, Bin 2, Total Exposure Time - 180 min. (3:00 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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