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Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

See Explanation. Clicking on the picture will download the highest resolution version available.

Naked Eye Nova Sagittarii 2015 No. 2

Explanation: It quickly went from obscurity to one of the brighter stars in Sagittarius -- but it's fading. Named Nova Sagittarii 2015 No. 2 , the stellar explosion is the brightest nova visible from Earth in over a year . The featured image was captured four days ago from Ranikhet in the India n Himalayas . Several stars in western Sagittarius make an asterism known as the Teapot , and the nova, indicated by the arrow, now appears like a new emblem on the side of the pot . As of last night, Nova Sag has faded from brighter than visual magnitude 5 to the edge of unaided visibility. Even so, the nova should still be easily findable with binoculars in dark skies before sunrise over the next week.

Gallery: Solar Eclipse

Date March 25, 2015
Credit Image Credit & Copyright: Ajay Talwar ( The World at Night )
Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.