Contains: Omega nebula, M 17, NGC 6618, NGC 5768, The star 11Lib
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Messier 17 - Omega Nebula

Technical card

Imaging telescope or lens: Vixen ED80SF

Imaging camera: Canon 550D

Mount: CELESTRON CG5-GT

Guiding telescope or lens: Vixen Finderscope 9x50

Guiding camera: Orion StarShoot AutoGuider

Focal reducer: Orion Field Flattener for Short Refractors

Software: PixInsightPHD GuidingO'Telescope BackyardEOS

Resolution: 3121x2079

Dates: July 3, 2013

Integration: 0.0 hours

Avg. Moon age: 25.23 days

Avg. Moon phase: 19.54%

Astrometry.net job: 83775

RA center: 275.193 degrees

DEC center: -16.112 degrees

Pixel scale: 2.475 arcsec/pixel

Orientation: 176.730 degrees

Field radius: 1.289 degrees

Description

This was the first target I shot data for on a recent dark-sky trip with my scope.

M17 is also known as the Swan, Lobster, Horseshoe, and Checkmark Nebula -- maybe more, take your pick. It is a bright HII region in Sagittarius, easy photographed and seen in even small telescopes.

Image details:
20x300s ISO800
Calibrated with dark, flat, and bias frames

Equipment:
Vixen ED80sf 80mm APO refractor
Celestron CG-5 ASGT mount
Orion SSAG autoguider + 50mm guide scope
Canon T2i 550D DSLR (Baader IR modded)
Orion Field Flattener

Software:
Image acquisition with BackyardEOS
Guiding with PHD
Calibration/alignment/integration and post-processing with PixInsight

Comments

Author

Cory Schmitz
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Messier 17 - Omega Nebula, Cory Schmitz

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