VdB 124 in Scutum

  Size: 1800 px      
© Velimir Popov & Emil Ivanov 2017

VdB 124 (also catalogued as IC 1287, Ced 163, DG 154, LBN 75 and Magakian 773) is a reflection nebula in the constellation Scutum. Its illuminating star is the 5.5 mag. HD 170740 from spectral class B2V. The paralax measurements place the complex at about 700 light years away. At the upper right corner is the open cluster NGC 6649. Discovered by John Hershel in 1835, it has a visual magnitude of 8.9 and angular diameter of 6'. Two Sharpless nebulae can also be spotted on the image (Sh2-55 and Sh2-56, see mouseover).

Image details:


Center of field RA 18:31:26 (h:m:s)
Center of field DE -10:45:57 (deg:m:s)
Size 1.93 x 1.29 (deg)
Pixel scale: 2.99 (arcsec/pixel)
Orientation: Up is 249 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: 22, 23. Jul. 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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