Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4263  ·  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool Galaxy
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M51 at f2.2, Gordon Bulger
M51 at f2.2
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M51 at f2.2

Getting plate-solving status, please wait...
M51 at f2.2, Gordon Bulger
M51 at f2.2
Powered byPixInsight

M51 at f2.2

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Description

M51 at f2.2 showing the remarkable light concentrating power of Celestron's 11 inch RASA telescope! 58 x 180 sec exposures 620mm fl QHY367c 1280 gain PI/ST/PS. The very faint background mist consisting of hosts of disrupted stars is largely missing from images made with higher f ratio telescopes. From my Bear Lake SkyShed pod observatory in Ontario, Canada.

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M51 at f2.2, Gordon Bulger