Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)
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Sh2-101 The Tulip Nebula, HaRGB, Eric Coles (coles44)
Sh2-101 The Tulip Nebula, HaRGB
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Sh2-101 The Tulip Nebula, HaRGB

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Description

This is the third of the SH2-101 images. The Ha adds additional detail to the RGB image as well as enhancing the emission nebula red color using Bob Franke's technique.

Here is the explanation of The Tulip Nebula from a recent APOD.

Popularly called the Tulip Nebula the 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 at the center of this composite image. Red, green, and blue hues map emission from ionized sulfur, hydrogen, and oxygen atoms. Ultraviolet radiation from young, energetic stars at the edge of the Cygnus OB3 association, including O star HDE 227018, ionizes the atoms and powers the emission from the Tulip Nebula. HDE 227018 is the bright star very near the blue arc at the cosmic tulip's center. Glowing across the electromagnetic spectrum, microquasar Cygnus X-1 and a curved shock front created by its powerful jets lie toward the top and right.

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Sh2-101 The Tulip Nebula, HaRGB, Eric Coles (coles44)