Hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  M 20  ·  M 21  ·  NGC 6514  ·  NGC 6531  ·  The star 4Sgr  ·  Trifid nebula
M20 - Trifid Nebula, 


M20 - Trifid Nebula
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M20 - Trifid Nebula

Technical card

Imaging telescopes or lenses: Skywatcher Black Diamond ED80

Imaging cameras: Canon DSLR EOS 1100D

Mounts: Skywatcher EQ6 Pro NEQ6 Pro

Guiding telescopes or lenses: Tecnosky 60/228 Cercatore 60x228

Guiding cameras: Astrolumina QHY5-II Mono

Focal reducers: Skywatcher 0.85x Focal Reducer/Corrector for the ED80

Software: PixInsight 1.8  ·  PHD Guiding  ·  Adobe Photoshop CS6

Filters: Hutech IDAS 2" LPS D1  ·  Baader IR EOS

Dates:June 28, 2014

Frames: 18x600" (3h)

Integration: 3h

Avg. Moon age: 1.07 days

Avg. Moon phase: 1.29%

Basic astrometry details

Astrometry.net job: 313173

RA center: 18h 2' 46"

DEC center: -23° 0' 7"

Pixel scale: 2.032 arcsec/pixel

Orientation: 86.019 degrees

Field radius: 1.455 degrees

Resolution: 620x413


Trifid Nebula from Monte Cucco: sensor temperature 19°C, SQM 21.03, dew and windy. No dark frames due to dithering between frames.


Sky plot

Sky plot


M20 - Trifid Nebula,