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Explanation: The Rosette Nebula is a large emission nebula located 3000 light-years away. The great abundance of hydrogen gas gives NGC 2237 its red color in most photographs. The wind from the open cluster of stars known as NGC 2244 has cleared a hole in the nebula's center. The above photograph, however, was taken in the light emitted by three elements of the gas ionized by the energetic central stars. Here green light originating from oxygen and blue light originating from sulfur supplements the red from hydrogen. Filaments of dark dust lace run through the nebula's gases. The origin of recently observed fast-moving molecular knots in the Rosette Nebula remains under investigation.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: hydrogen - Rosette Nebula - NGC 2237 - emission nebula
Publications with words: hydrogen - Rosette Nebula - NGC 2237 - emission nebula
See also:
- APOD: 2025 February 18 Á Thors Helmet versus the Seagull
- A Cosmic Rose: NGC 2237 in Monoceros
- APOD: 2025 February 11 Á The Spider and the Fly
- APOD: 2024 December 17 Á Near to the Heart Nebula
- The Elephant s Trunk in Cepheus
- Phantoms in Cassiopeia
- APOD: 2024 August 28 Á Tulip Nebula and Black Hole Cygnus X 1