
September 21, 2019
The Tulip in the Swan

September 21, 2019
The Tulip in the Swan
A little universe, just for you
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APOD published September 21, 2019. Credit: Robert Eder. A publication-date match, not a photo taken on your date. Independent of NASA.
Framing a bright emission region, this telescopic view looks out across a pretty field of stars along the plane of our Milky Way Galaxy, toward the nebula rich constellation Cygnus the Swan. Popularly called the Tulip Nebula, the reddish glowing cloud of interstellar gas and dust is also found in the 1959 catalog by astronomer Stewart Sharpless as Sh2-101. About 8,000 light-years distant and 70 light-years across the complex and beautiful nebula blossoms near the center of this composite image. Ultraviolet radiation from young energetic O stars at the edge of the Cygnus OB3 association, ionizes the atoms and powers the emission from the Tulip Nebula.
Image credit: Robert Eder