NGC 2774: An Open Cluster Illuminating a Faint-Faint Reflection NebulaA.K.A: Messier 93
OTA: CDK24 f/6.5
Camera: Moravian 61000 Pro
Observatory: Heaven's Mirror
Date of Capture: Apr '23
Date of Processing: Dec '23
Exposures:
R: 13 x 180 sec
G: 14 x 180
B: 19 x 180
Total Exposure time: 2.3 hours
Image Width: 28.5 arc-minutes
Processing Tools:
1. Commercial: PixInsight, Topaz (Studio2, Photo AI2), Photo Director 365, GraXpert
2. PixInsight Addons: NoiseXTerminator, BlurXTerminator, StarXTerminator
3. My Scripts: Subframe Weighting Tool (Excel w/ J. Hunt), LumTweaker
Target Description:
The most prominent stars in this open cluster appear to be blue giants and red giants. There appears to be a faint reflection nebula (bluish) illuminated by the cluster's stars. The cluster is estimated to be about 390M years old. (Wikipedia) Further description of the cluster can be found here:
https://www.universetoday.com/48432/messier-93/.
Although the annotation programs draws a circle around a portion of this image, young blue stars lying well beyond that circle are probably members of this same cluster…comments?
Processing Description:
Could not want an easier, simpler data set to process. Total processing time <1.5 hrs. Maybe the most interesting part of this is that I decided not to do any color calibration other than a linear fit…it just did not require any.
Statistics:
Distance: 3.83K ly
Apparent Magnitude: 6.0
Pixel Span at Target: 6B km
Alex Woronow 
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