Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  HD119025  ·  HD119081  ·  HD119391  ·  HD119686  ·  HD119748  ·  M 3  ·  NGC 5263  ·  NGC 5272
M3, Joel Lee
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M3

M3, Joel Lee
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M3

Equipment

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Acquisition details

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Description

It was full moon again at the end of the month. I did not really want to start collecting data on more faint galaxies so I went with some globular clusters as I thought these would be quick and easy to handle. It ended up being quite enjoyable. I never really knew how dense and extensive these clusters really were till I started integrating images of them myself. Even looking at other people's images, it's hard to really get an idea of how amazing they are when you integrate your subframes and way more of the cluster reveals itself. 

Processing was rather simple. Instead, preprocessing was about being picky so that I could get the tightest stars. This ended up selecting 103/120 images.

Processing:
  1. Calibrate with Flats, Darks, Flat Darks in ASTAP
  2. SubframeSelector in PixInsight FWHM < 2.5, Stars >332, Eccentricity < 0.64
  3. WBPP Maximum settings Drizzle 1x (this takes FOREVER and clogs my computer)
  4. GradientCorrection Default + Auto Converge
  5. SPCC Photon Flux CMOS UVIR / Antlia Triband
  6. BXT Defaults
  7. NXT 0.6 denoise detail 0.15
  8. GHS module's Arcsinh x2
  9. Curves Transformation to brighten the image

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