HMSTG 437 - dark clouds in Chameleon

© Velimir Popov & Emil Ivanov 2016
Size: 2000 px

This dark clouds are designated as HMSTG 437 and belong to the so called Cameleon Molecular Cloud. The HMSTG is a catalogue of 1101 dark clouds and has been compiled from visual inspection of ESO/SERC Southern J survey plates for declinations south of -33°. It was published by M.Hartley, R.N.Manchester, R.M. Smith, S. B.Tritton and W.M.Goss in 1986 andcomplements that of Lynds (1962) which is based on the Palomar Sky Survey. Equatorial positions of accuracy 10 arcsec or better are listed for each cloud along with size (major axis × minor axis), density class and ESO/SERC field number. Galactic coordinates, derived from the equatorial positions, are used to define a name for each cloud. Complexes, consisting of several separately identifiable concentrations, are listed and identified by a trailing C on the name. The conclusions of Lynds, that clouds are concentrated along the galactic equator and toward the galactic centre, are reinforced. The bright blue star at the bottom is the 4.24 mag. β Chameleonis.

Image details:


Center of field RA 12:15:16 (h:m:s)
Center of field DE -78:48:52 (deg:m:s)
Size 1.4 x 1.28 (deg)
Pixel scale: 1.03 (arcsec/pixel)
Orientation: Up is 180 degrees E of N
Charts and image details obtained from
Optic(s): 16" f3,75 Dream Corrected Astrograph (DCA)
Mount: Astelco NTM-500 direct drive mount
Camera: Apogee Alta U-16M CCD camera
Filters: Lum, Red, Green, Blue Astrodon
Dates/Times: 26 Aug. 2014
Location: Namibia-TIVOLI ASTROFARM, S 23° 27' 40,9" / E 18° 01' 02,2"
Exp. Details:

L:6x10min, R:5x10min, G:5x10min, B:5x10min, Bin 1 Total Exposure Time 210 min.

More details: Dark and flat frames reduction
Processing: PixInsight / PS
Copyright: Velimir Popov and Emil Ivanov 2016. All Rights Reserved
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