Category Archives: Galaxies

The Whale & Crowbar Galaxies

Whale & Crowbar Galaxies on Mar 7, 2020. 184×30 sec, Gain 37, Offset 0, QHY183c cooled -20C, UHC-S filter, Televue TV-85 @ F/5.6

Not the best of nights with moonlight and high clouds, but I did manage to get enough data for a preliminary image of the Whale and Crowbar Galaxies.

Here is the detail view:

Whale Galaxy and Pup on Mar 7, 2020. 184×30 sec, Gain 37, Offset 0, QHY183c cooled -20C, UHC-S filter, Televue TV-85 @ F/5.6. Detail view.

M83 Spiral Galaxy

M83 Spiral Galaxy on Feb 22, 2020. 41×60 sec, Gain 20, Offset 15, QHY183c at -20C, UHC-S Filter, Televue TV-85 @ F/5.6.
m83-41×60-g20-o15_-20C-qhy183c-uhcs-85f5_6-v2-scaled.jpg

Cut short by clouds!   I have been wanting to get this object, too.  It was finally in an area of the sky and there at the right time for me to get at least 90 minutes worth of time on it.   But, the clouds came in and ruined things only half-way in.   What I did get was decent, at least.

M101 Spiral Galaxy

M101 on Feb 29, 2020 UT. 206×30 sec, Gain37, Offset 15, 116×60 sec, Gain 20, Offset 15, QHY183c at -20C, UHC-S filter, Televue TV-85 at F/5.6.

Two sets of data taken back to back.  First set was with 30 sec, high-gain sub-images and the 2nd set was with 60 sec subs at medium gain.   Total time was 3.65 hours.   Cropped about 50% out to isolate the galaxy.  The 60 sec subs were better, but only because I had centered the target better and it was higher in the sky when I started the set.

Sombrero Galaxy

Sombrero Galaxy on Feb 22, 2020. 189×30 sec @ Gain 37, Offset 15, QHY183c cooled to -20C, UHC-S filter, TV-85 at F/5.6, SharpCap 3.2 LiveStacking with Dither. Rotated to portrait then cropped back to landscape format.
Sombrero Galaxy on Feb 22, 2020. 189×30 sec @ Gain 37, Offset 15, QHY183c cooled to -20C, UHC-S filter, TV-85 at F/5.6, SharpCap 3.2 LiveStacking with Dither. Detail Crop.

Virgo Galaxy Cluster – M86

Virgo Cluster centered on M86. 490×30 sec @ Gain 37, Offset 30, QHY183c cooled to -20C, UHC-S filter, TV-85 at F/5.6. SharpCap 3.2 LiveStacking w/dither.

This image is still in process.   It was not the best night for attempting this since transparency was poor at the time of imaging it.   Lots of LP in the 4 hrs of exposure accumulated and almost overwhelmed the dim galaxies.  The color was zapped out, so I took an image with only about 2 hrs of time and used it as color and the 4 hrs of exposure was used as luminosity.