Amazing Sky by Alan Dyer

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Mel111-Coma Berenices Cluster (200mm 6DII).jpg

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The large, naked-eye star cluster that makes up most of the constellation of Coma Berenices, aka Mel 111. This is a wide view to simulate the field of binoculars. The galaxies NGC 4565 (left) and NGC 4559 (top left) are visible, as is NGC 4494 between the sliver-like NGC 4565 and the main star cluster. I shot this in deep twilight and retained some of the natural deep blue of the twilight from the earlier shots.

The differences in star colours show up. The diffraction spikes are from the lens iris blades from being stopped down to f/4 from the maximum aperture of f/2.8.

This is a stack of 7 exposures, each 4 minutes at f/4 with the 200mm Canon lens and Canon 6D MkII at ISO 800, unguided on the AP Mach 1 mount.
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© 2019 Alan Dyer
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6200x4150 / 8.1MB
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Contained in galleries
Star Clusters, Various Constellations
The large, naked-eye star cluster that makes up most of the constellation of Coma Berenices, aka Mel 111. This is a wide view to simulate the field of binoculars. The galaxies NGC 4565 (left) and NGC 4559 (top left) are visible, as is NGC 4494 between the sliver-like NGC 4565 and the main star cluster. I shot this in deep twilight and retained some of the natural deep blue of the twilight from the earlier shots.<br /> <br /> The differences in star colours show up. The diffraction spikes are from the lens iris blades from being stopped down to f/4 from the maximum aperture of f/2.8. <br /> <br /> This is a stack of 7 exposures, each 4 minutes at f/4 with the 200mm Canon lens and Canon 6D MkII at ISO 800, unguided on the AP Mach 1 mount.