2021-08-07
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Images by Ian Waite at Mt. Kent Observatory


Weather: at 17:35 local time Queensland, Australia
Outside Temp:   13 C
humidity:       63 %
Pressure:       1025.3 hPa
Dewpoint:       6 C
Wind:           3 km/h W
Visual Inspection: Find, no cloud, light winds

Shared Skies CDK700 telescope with Apogee U16 camera and Sloan filters

RA: 13h 26m 47.28s
DEC: -47d 28m 46.1s 

Each aligned FITS image is the sum of (12) 32-second exposures in a Sloan filter. 
The WCS coordinates were added to the sum image. The equivalent exposure time in
each filter is 384 seconds (6.4 minutes).  The RGB color image was made with ds9
from these aligned FITS images by assigning RGB colors to the Sloan i,r,g
filters.  This preserves the association of color with star temperature while
moving the  preceived colors into the near infrared i-band for "red".

The display is a square root color map to develop a wide dynamic range in the
resultant image.