суббота, 21 сентября 2019 г.

2019 September 21 The Tulip in the Swan Image Credit &…


2019 September 21


The Tulip in the Swan
Image Credit & Copyright: Robert Eder


Explanation: 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.


∞ Source: apod.nasa.gov/apod/ap190921.html


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