Thread: Messier 55
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Old 13-08-2019, 09:16 PM
furgle (Adam)
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Join Date: Feb 2016
Location: Brisbane
Posts: 144
Messier 55

One of the few Messier objects difficult to observe in the northern hemisphere, this is also the first light photo from the acquisition of a Skywatcher Esprit 120ED. As I'm still waiting for some adapters to be machined to match the included field flattener, I had to settle for a Baader MPCC II coma corrector. I'm still pleasantly surprised with the result.

Higher resolution here: https://observatory.site/astrophotog...bular_Cluster/

Image:
  • 19x 180s Red
  • 19x 180s Green
  • 18x 180s Blue
Total integration 2 hours, 48 minutes.


Hardware:
  • Skywatcher Esprit 120ED
  • Skywatcher EQ8 Pro mount
  • QSI 683-ws8 Camera @ -15C
  • Astronomik deep sky RGB filters
  • Starlight Xpress Lodestar X2 Autoguider
  • Celestron large format off-axis guider
  • Baader MPCC II coma corrector
  • Starlight Instruments Feather Touch Focuser + Posi Drive Motor
Location:
  • Imaged on 18th June 2019.
  • Orange zone in Brisbane, Australia. (Bortle 7)
Software:
  • Planning & camera alignment with Aladin 10
  • Captured with TheSkyX Professional
  • Guiding with PHD2
  • FocusMax auto focus
  • PixInsight: Calibrate, align, integrate, dynamic background extraction, RGB combination, noise reduction, photometric color calibration, deconvolution, histogram, curves, crop.
Attached Thumbnails
Click for full-size image (M055 IIS thumb.jpg)
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Click for full-size image (M055 IIS.jpg)
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