By Raja Rao DV | 2021-08-11
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On 08/11/2021 12:38 am by Ken Chan| Portola Valley, CA, USA
RS Ophiuchi is a binary system composed of a red giant and white dwarf. It recently displayed a temporary increase in brightness as the result of the white dwarf igniting accreted matter from the red giant and triggering a thermonuclear explosion. This recurrent nova occurs on a roughly 15 year cycle.
Nikon D750 + TPO UltraWide 180 + MoveShootMove StarTracker
Stacked 5 photos taken at ISO 200, 60s, f/4.5, 180mm and edited in Photoshop.