SL 17 - dark nebula in Scorpius

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    16" DCA: HaLRGB 16" DCA: LRGB 16" DCA: Ha  
    Size: 2000 px Size: 2000 px Size: 2000 px  
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© Velimir Popov & Emil Ivanov 2016

Located in the constellation of Scorpius this dark nebula is known as SL 17 (Sandqvist and Lindroos 17). The nebula resembles the shape of a wolf's profile and often is referred as the Wolf Nebula. SL17 is situated in the emission nebula RCW113 (or Gum 55).

Object details

Right Ascension 16:52:40 (h:m:s)
Declination -43:26:46 (deg:m:s)
Distance ~
Apparent Dimension -

Image details


Center of field RA 16:52:40 (h:m:s)
Center of field DE -43:26:46 (deg:m:s)
Size 1.37 x 1.37 (deg)
Pixel scale: 1.23 (arcsec/pixel)
Orientation: Up is 89.3 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, Ha, OIII and SII Astrodon
Dates/Times: 24.08.2014
Location: Namibia-TIVOLI ASTROFARM, S 23° 27' 40,9" / E 18° 01' 02,2"
Exp. Details: L:7x10min, R:3x10min, G:3x10min, B:3x10min, Ha:4x15min
  Bin 1, Total Exposure Time - 220 min (3:40 hours)
More details: Dark and flat frames reduction
Processing: PixInsight / PS
Copyright: Velimir Popov and Emil Ivanov 2016. All Rights Reserved
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