VdB 148 in Cepheus

  Size: 1800 px      
© Velimir Popov & Emil Ivanov 2017

VdB 148 is a small reflection nebula visible in the constellation Cepheus. It is located in the northeastern part of the constellation, about 2 ° south of the star ζ Cephei, in the direction of a region of the Milky Way very rich in dark nebulae. The nebula reflects the light of the star HD 239856, a yellow supergiant with a spectral class F2Iab having an apparent magnitude of 8.59. Estimates of its distance based on parallax are affected by great inaccuracy; and they give a distance of about 1640 parsecs (5345 light years).

Image details:


Center of field RA 22:07:19 (h:m:s)
Center of field DE +56:13:39 (deg:m:s)
Size 1.93 x 1.29 (deg)
Pixel scale: 2.99 (arcsec/pixel)
Orientation: Up is 255 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: 26,27 Apr. 2017
Location: IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exp. Details: L:6x10min., R:5x10 min, G:5x10 min, B:5x10 min, Bin 2, Total Exposure Time - 210 min (3h 30min).
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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