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FROM THE OBSERVATORY · 29-Apr-2022

NGC6872 Galactic Group

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NGC6872 Galactic Group
With more than 16 galaxies in one very narrow field of view, the elliptical galaxy NGC6876 is centered, interacting with NGC6877. In the bottom right, the spiral arms of NGC6872 are spread out by the interaction with IC4970
BEHIND THE IMAGE

Notes from the session

Image:
68x 300s Luminance (CLS-CCD light pollution filter)
45x 300s Red
41x 300s Green
56x 300s Blue


Total integration 17.5 hours. Focal length: 1960mm

Hardware:
Celestron 11" EdgeHD
Celestron 11" EdgeHD 0.7x reducer
Skywatcher EQ8 Pro mount
QSI 683-ws8 Camera @ -15°C
Astrodon RGB Gen2 E-Series Tru-Balance filters
Astronomik CLS-CCD light pollution filter
Starlight Xpress Lodestar X2 Autoguider
Starlight Xpress Large Format Active Optics
Innovations Foresight ONAG
Starlight Instruments Feather Touch Focuser



Location:
Exposed over 5 nights between 7th August to 11th August 2020
Orange zone in Brisbane, Australia. (Bortle 7)



Software:
Planning & camera alignment with Aladin 10
Captured with TheSkyX Professional
Guiding with PHD2
PixInsight: Calibrate, align, integrate, automatic background extraction, LRGB combination, noise reduction, photometric color calibration, HDR multiscale transform, histogram, curves, crop.