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Messier 51

Technical card

Imaging telescope or lens: Celestron Edge HD 14

Imaging camera: Apogee U16M

Mount: CGE Pro

Guiding camera: Celestron Skyris 274M

Software: photoshopMaxim DLBliss MetaGuideAndre Paquette Custom

Filter: Baader LRGB 2" square

Resolution: 3480x3168

Astrometry.net job: 1540422

RA center: 202.422 degrees

DEC center: 47.187 degrees

Pixel scale: 0.477 arcsec/pixel

Orientation: -4.702 degrees

Field radius: 0.312 degrees

Locations: Barred Owl Observatory, Ottawa, Ontario, Canada

Description

12h40m of total exposure of M51 with HD14 and U16M.
Off-axis guided with Skyris 274M and Metaguide.
This is an RGB-only image with 20 minute sub-exposures.
Local sharpening and contrast enhancement was done to the main part of M51 but otherwise no complex processing was performed.
Colour balance was set using a "make the average star colour white" algorithm.

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Author

apaquette
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Now with 12.67 hours exposure.

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Messier 51, apaquette