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Explanation: What's that inside the Heart Nebula? First, the large emission nebula dubbed IC 1805 looks, in whole, like a human heart. It's shape perhaps fitting of the Valentine's Day, this heart glows brightly in red light emitted by its most prominent element: hydrogen. The red glow and the larger shape are all created by a small group of stars near the nebula's center. In the heart of the Heart Nebula are young stars from the open star cluster Melotte 15 that are eroding away several picturesque dust pillars with their energetic light and winds. The open cluster of stars contains a few bright stars nearly 50 times the mass of our Sun, many dim stars only a fraction of the mass of our Sun, and an absent microquasar that was expelled millions of years ago. The Heart Nebula is located about 7,500 light years away toward the constellation of the mythological Queen of Aethiopia (Cassiopeia).
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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: Heart Nebula - emission nebula - open cluster
Publications with words: Heart Nebula - emission nebula - open cluster
See also:
- Open Star Clusters M35 and NGC 2158
- APOD: 2025 February 25 Á M41: The Little Beehive Star Cluster
- APOD: 2025 February 18 Á Thors Helmet versus the Seagull
- 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
- APOD: 2024 October 29 Á NGC 602: Stars Versus Pillars from Webb