Reflection Nebula in Corona Australis by Greg McCall

NGC6726, NGC6727, NGC6729 & IC4812 Nebula
NGC6723 Globular Cluster

The image was taken on our first night at our new club observation site, about a 40-minute drive north from the centre of Sydney.

L 17 x 240s Bin 1×1
R 26 x 240s Bin 2×2
G 11 x 240s Bin 2×2
B 17 x 240s Bin 2×2

No guiding. Astro-Physics APPM model of 135 points (above 43 deg altitude)
SQM readings ranged from 20.03 to 20.15
Temperature from 6.4 to 5.4 degrees C

Imaging telescopes or lenses: Sky-Watcher 120ED APO 120mm Refractor

Imaging cameras: QHYCCD QHY600M-PH

Mounts: ASTRO-PHYSICS Mach2GTO German Equatorial Mount (MACH2GTO)

Software: Sequence Generator Pro

Dates:May 16, 2021

Frames: 71×240″ (4h 44′)


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