M22 - Globular Cluster in Sagittarius ( Rodney Watters )

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M22 - Globular Cluster in Sagittarius

Imaging telescopes or lenses: Tak TSA120

Imaging cameras: QSI 683 ws-8

Mounts: EQ8

Guiding telescopes or lenses: Tak TSA120

Guiding cameras: Starlight Xpress Lodestar x2

Focal reducers: Takahashi TOA Reducer .75x

Software: Pixinsight 1.8 · Sequence Generator Pro

Filters: Astronomik Red · Astronomik Blue · Astronomik Green

Dates:Aug. 25, 2020 , Aug. 26, 2020 , Sept. 5, 2020

Frames:
Astronomik Blue: 162x60" -20C bin 1x1
Astronomik Green: 170x60" -20C bin 1x1
Astronomik Red: 162x60" -20C bin 1x1

Integration: 8.2 hours

Darks: ~50

Flats: ~50

Bias: ~100

Avg. Moon age: 11.01 days

Avg. Moon phase: 65.21%

Bortle Dark-Sky Scale: 3.00

Astrometry.net job: 3885271

RA center: 18h 36' 26"

DEC center: -23° 53' 51"

Pixel scale: 1.318 arcsec/pixel

Orientation: 92.902 degrees

Field radius: 0.692 degrees

Resolution: 3093x2173

Data source: Backyard

M22 is a fine globular cluster located in the constellation of Sagittarius approximately 10,000 light years from Earth. Along with NGC 6752, 47 Tucanae and Omega Centauri it is one of the four brightest globular clusters in the night sky.

Rodney Watters

75253

Original
Final
B

B

Description: Decided to crop down the original.

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