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OBJECT

M51 - Whirlpool Galaxy       (image above is reduced-size crop | other sizes:  medium , original)

Distance:  30 million light years

Telescope Takahashi TOA-130F @ f/7.7
Mount Takahashi EM200 Temma II
Camera QSI 690wsg @ -10C
Filters Astrodon Tru-Balance I-Series LRGB Gen 2
Guider SX Lodestar
Settings 17x10min L (bin1x1); 4x5min ea RGB (bin2x2); AstroArt5, CS4 (slightly cropped, 10xdarks/flats/fdarks/bias)
Date/Location

Notes
18 June 2018 - Las Cruces, NM

This image is LRGB.

Copyright  Jeffrey O. Johnson

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