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    The Whirlpool Galaxy (M51) with Supernova SN 2011dh

    Posted by Oleg Bryzgalov
    on Thursday, June 9, 2011
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    This photo was taken april 2011 - june 2011 in Khlepcha observatory near Kiev, Ukraine.
    Equipment: reflector S&K 200 mm. f/5, Mount WhiteSwan-180, camera QSI-583wsg, Tevevue Paracorr. Off-axis guidecamera Orion SSAG.
    RGB and Ha filter set Baader Planetarium.
    I handled the galaxy as follows: blue, green, and hydrogen channels from April 2011, and red - from June, after the explosion. Supernova SN 2011dh visible in the lower arm of the galaxy as bright red dot.
    North left, crop 100%, scale 0.99"/pixel

    Tags: Spiral galaxy , Messier object , Supernova
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