Hemisphere:  Southern  ·  Contains:  B85  ·  M 20  ·  M 21  ·  M20  ·  M21  ·  NGC 6514  ·  NGC 6531  ·  Sh2-30  ·  Trifid nebula
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M20 "Trifid" & M21 in LRGB-HO (TSA102), 



    
        

            Jean-Baptiste Auroux
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M20 "Trifid" & M21 in LRGB-HO (TSA102)

Imaging telescopes or lenses: Takahashi TSA 102

Imaging cameras: Atik ONE 6.0

Mounts: Skywatcher AZ EQ6 GT

Guiding telescopes or lenses: Takahashi TSA 102

Guiding cameras: Atik GP

Focal reducers: Takahashi TOA-RD

Software: Pleiades Astrophoto PixInsight 1.8 Ripley  ·  PHD Guiding 2  ·  Atik Artemis

Filters: Astronomik Ha 6nm  ·  Astronomik OIII 6nm  ·  Astronomik B 1.25"  ·  Astronomik G 1.25"  ·  Astronomik R 1.25"  ·  Astronomik L 1.25"

Accessory: Atik OAG


Dates:Aug. 12, 2017Aug. 13, 2017Aug. 14, 2017Aug. 15, 2017

Frames:
Astronomik Ha 6nm: 12x300" -10C bin 1x1
Astronomik OIII 6nm: 12x300" -10C bin 2x2
Astronomik B 1.25": 20x180" -10C bin 2x2
Astronomik G 1.25": 20x180" -10C bin 2x2
Astronomik L 1.25": 24x300" -10C bin 1x1
Astronomik R 1.25": 20x180" -10C bin 2x2

Integration: 7.0 hours

Darks: ~64

Flats: ~14

Bias: ~100

Avg. Moon age: 21.04 days

Avg. Moon phase: 61.35%

Bortle Dark-Sky Scale: 2.00


Astrometry.net job: 1814386

RA center: 18h 3' 16"

DEC center: -22° 45' 48"

Pixel scale: 1.159 arcsec/pixel

Orientation: -4.490 degrees

Field radius: 0.735 degrees


Resolution: 2851x3568

Locations: Cargèse, Cargèse, Corse du Sud, France

Data source: Traveller

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Jean-Baptiste_Paris
Jean-Baptiste Auroux
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    M20 "Trifid" & M21 in LRGB-HO (TSA102), 



    
        

            Jean-Baptiste Auroux
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    M20 "Trifid" & M21 in LRGB-HO (TSA102), 



    
        

            Jean-Baptiste Auroux
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M20 "Trifid" & M21 in LRGB-HO (TSA102), 



    
        

            Jean-Baptiste Auroux