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Birthday · August 4, 2018

Central Cygnus Skyscape

August 4, 2018

Light takes eight minutes to travel from the Sun to the Earth. It took the universe 13.8 billion years to make you.

Central Cygnus Skyscape

A little universe, just for you

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APOD published August 4, 2018. Credit: Mauro Narduzzi. A publication-date match, not a photo taken on your date. Independent of NASA.

Behind the image

Central Cygnus Skyscape

Original APOD · August 4, 2018

Supergiant star Gamma Cygni lies at the center of the Northern Cross, famous asterism in the constellation Cygnus the Swan. Known by its proper name, Sadr, the bright star also lies at the center of this gorgeous skyscape, featuring a complex of stars, dust clouds, and glowing nebulae along the plane of our Milky Way galaxy. The field of view spans almost 4 degrees (eight Full Moons) on the sky and includes emission nebula IC 1318 and open star cluster NGC 6910. Left of Gamma Cygni and shaped like two glowing cosmic wings divided by a long dark dust lane, IC 1318's popular name is understandably the Butterfly Nebula. Above and left of Gamma Cygni, are the young, still tightly grouped stars of NGC 6910. Some distance estimates for Gamma Cygni place it at around 1,800 light-years while estimates for IC 1318 and NGC 6910 range from 2,000 to 5,000 light-years.

Image credit: Mauro Narduzzi

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