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Crab nebula 2005-2016 evolution

Technical card

Imaging telescopes or lenses: Celestron C9.25Skywatcher 250/1200

Imaging cameras: SBIG ST-2000XCMSBIG ST-7XME

Mount: SkyWatcher EQ6 belt-modded

Guiding telescope or lens: Skywatcher 250/1200

Guiding cameras: SBIG ST-2000XCMSBIG ST-7XME

Software: MaxIm DL 5Adobe Photoshop 2 CS

Resolution: 592x574

Dates: Nov. 29, 2005Dec. 30, 2016

Frames:
15x720" -10C
4x1000" -20C

Integration: 4.1 hours

Darks: ~11

Flats: ~29

Bias: ~21

Avg. Moon age: 13.74 days

Avg. Moon phase: 4.24%

Mean SQM: 21.15

Astrometry.net job: 1395013

RA center: 83.632 degrees

DEC center: 22.029 degrees

Pixel scale: 0.850 arcsec/pixel

Orientation: 178.731 degrees

Field radius: 0.097 degrees

Comments

Author

Daniele Gasparri
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Crab nebula 2005-2016 evolution, Daniele Gasparri