IC 4685 (Sh 2-29), IC 1275 (Sh 2-31), IC 1274 (Sh 2-32) a.o. in Sagitarius
 
  Size: 2000 px      
 
© Velimir Popov & Emil Ivanov 2018

IC 4685 (Sh 2-29), IC 1275 (Sh 2-31), and IC 1274 (Sh 2-32) are a group of three nebulae next to the much larger Lagoon nebula. This group is combined together in the RCW (RCW 146c) and Gum (Gum 75) catalogs. Some other objects can be found here (see mouseover).

 
 

Image details:

Annotation
Center of field RA 18:09:42 (h:m:s)
Center of field DE -23° 59' 17 (deg:m:s)
Size 1.63 x 1.12 (deg)
Pixel scale: 1.77 (arcsec/pixel)
Orientation: Up is 66.6 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: Red, Green, Blue, Astronomik filters
Dates/Times: 29-31 .Aug.2018
Location: IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exp. Details: L:6x10 min, R:6x10 min, G:6x10 min, B:6x10 min, Ha: 6x15min. Bin 1, Total Exposure Time - 330 min.
More details: Dark and flat frames reduction
Processing: PixInsight / PS
 
Copyright: Velimir Popov and Emil Ivanov 2013 - 2018. All Rights Reserved
 
e-mail: info@irida-observatory.org
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