VdB 129 - reflection nebula in Aquila

  Size: 1800 px      
© Velimir Popov & Emil Ivanov 2016

VdB 129 (DG 161, theta Aql or Magakian 810) is a reflection nebula in the constellation Aquila. The observation and the imaging of VdB 129 is very difficult due to the close proximity to θ Aquila, with whom the nebula is probably associated physically, although this link is not certain. If the two objects are linked physically, the distance of the cloud becomes almost equal to that of the star, which is about 88 parsecs (187 light-years). θ Aquilae is a blue giant of spectral class B9.5III. Two others bright nebulae are visible on the image: LBN 113 (bottom) and LBN 116 (left).

Image details:


Center of field RA 20:11:13 (h:m:s)
Center of field DE -00:47:36 (deg:m:s)
Size 1.96 x 1.3 (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: 31 Oct., 1 Nov. 2016
Location: IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exp. Details: L: 6x10, R:5x10 min, G:5x10 min, B:5x10 min, Bin 1, Total Exposure Time - 210 min. (3:30 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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