LDN 1247, LDN 1251 in Cepheus

© Velimir Popov & Emil Ivanov 2016
Size: 2000 px

LBN 558, LDN 1247 and LDN 1251 are a part of a molecular cloud structure in the constellation Cepheus. This is a region of star formation, including several Herbig-Haro objects. In late 1940s George Herbig and Guillermo Haro independently studied and identified these objects as a distinct type of the emission nebula assotiated with newborn stars. The distance to the complex is estimated at 17 light-years. On this image can be spotted also some distant background galaxies. The most prominent of them are PGC 69472 and PGC 166755 (see the annotated mouseover).


Image details:


Center of field RA 22:32:41 (h:m:s)
Center of field DE +75:11:35 (deg:m:s)
Size 71.9 x 53 (arcmin)
Pixel scale: 1.04 (arcsec/pixel)
Orientation: Up is 18.5 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. Aug. 2016
Location: IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exp. Details: L:12x10min.,R:6x10min, G:6x10min, B:6x10min Bin 1, Total 300 min (5:00 hrs)
More details: Dark and flat frames reduction
Processing: PixInsight / PS
Copyright: Velimir Popov and Emil Ivanov 2016. All Rights Reserved
e-mail: info@irida-observatory.org
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