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By alan4908
M100 is located in the Virgo cluster at a distance of 55million light years, it is one of the brightest and closest galaxies within the cluster. It's a spiral galaxy with a pronounced bar at its centre. Quite a few supernovas have been found here, the most recent being in 2019, designated SN 2019ehk which was discovered on 29th April. The LRGB image represents 12.3 hours integration time and was taken with my Esprit 150.
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By alan4908
M100 is located in the Virgo cluster at a distance of 55million light years, it is one of the brightest and closest galaxies within the cluster. It's a spiral galaxy with a pronounced bar at its centre. Quite a few supernovas have been found here, the most recent being in 2019, designated SN 2019ehk which was discovered on 29th April.
The LRGB image below represents 12.3 hours integration time and was taken with my Esprit 150
(For those that might be interested: the data was gathered between Feb and May 19 , so I was wondering why I couldn't see the supernova in the image. On examination of the individual subframes it transpired that I captured it in only a handful of subframes, it's first appearance was on the night of 29th April. So, when I stacked the image, the supernova was simply rejected as a statistical error..... I think I've come to the conclusion that I'm not cut out for supernova hunting ).
Alan
LIGHTS:: L:26, R:19, G:13, B:16 x 600s, DARKS:30, FLATS:40, BIAS:100 all at -20C.
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