NIGHT OVER ONTARIO
Pictures have appeared on the cover and inside editions of SkyNews magazine and in Sky & Telescope and Astronomy magazine, and as NASA's Astronomy Picture of the Day.
“ Had I the heavens' embroidered cloths,
Enwrought with golden and silver light,
The blue and the dim and the dark cloths
Of night and light and the half light,”
W.B.Yeats
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Galaxies M81 and M82 reprocessed February 2013.
Taken by Lynn Hilborn on Feb 22, 2011..RGB 5mx12,L 10mx16,Ha 20mx6 all 2x2 TEC140 @f7, ML8300 camera. WhistleStop Obs, Grafton,Ontario
In this stunning cosmic vista, galaxy M81 is on the left surrounded by blue spiral arms. On the right marked by massive gas and dust clouds, is M82. These two mammoth galaxies have been locked in gravitational combat for the past billion years. The gravity from each galaxy dramatically affects the other during each hundred million-year pass. Last go-round, M82's gravity likely raised density waves rippling around M81, resulting in the richness of M81's spiral arms. But M81 left M82 with violent star forming regions and colliding gas clouds so energetic the galaxy glows in X-rays. In a few billion years only one galaxy will remain. Description from APOD (Astronomy Photo of the Day).
