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Imaging telescopes or lenses: Skywatcher Explorer 200PDS
Mounts: Skywatcher NEQ6 PRO Synscan
Guiding telescopes or lenses: Skywatcher 9x50 finderscope
Guiding cameras: QHYCCD QHY5-III 178 C
Focal reducers: Baader MPCC Mk III
Software: Pixinsight
Filters: Baader Red 2" · Baader L 2'' · Baader Green 2" · Baader Blue 2" · ZWO Ha 7nm
Dates:Oct. 3, 2020 , Oct. 4, 2020
Frames:
Baader Blue 2": 25x300" -30C bin 1x1
Baader Green 2": 25x300" -30C bin 1x1
ZWO Ha 7nm: 28x300" -30C bin 1x1
Baader L 2'': 25x300" -30C bin 1x1
Baader Red 2": 25x300" -30C bin 1x1
Integration: 10.7 hours
Flats: ~20
Bias: ~100
Avg. Moon age: 16.66 days
Avg. Moon phase: 95.80%
Astrometry.net job: 3906660
RA center: 2h 33' 32"
DEC center: +61° 35' 9"
Pixel scale: 1.108 arcsec/pixel
Orientation: 56.593 degrees
Field radius: 0.502 degrees
Resolution: 2638x1914
Locations: Puolivälinkangas - Oulu, Oulu, Finland
Data source: Backyard
Melotte 15 is the open star cluster at the heart of IC 1805. It's radiation causes the surrounding nebula to glow.
The cluster contains very young, blue, hot supergiant stars about 1.5 million years old. It is located near the nebula’s centre and home to several bright stars with a mass almost 50
times that of the Sun, as well as many faint stars far less massive than the Sun. Melotte 15 once contained a microquasar, a radio emitting X-ray binary system, but the system was expelled
from the cluster millions of years ago.
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