Explanation: What's that inside the Heart Nebula? First, the large emission nebula dubbed IC 1805 looks, in whole, like a human heart. The nebula 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 center 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 Cassiopeia. At the top right is the companion Fishhead Nebula.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: Heart Nebula - emission nebula - open cluster - Rasseyannoe skoplenie - emissionnaya tumannost' Publikacii so slovami: Heart Nebula - emission nebula - open cluster - Rasseyannoe skoplenie - emissionnaya tumannost'
Sm. takzhe: Okolo tumannosti Serdce Pleyady: zvezdnoe skoplenie Sem' sester Slonovii hobot v Cefee NGC 602: zvezdy protiv stolbov Prizraki v Kassiopee Melott 15 v tumannosti Serdce Tumannost' Tyul'pan i chernaya dyra Lebed' X-1 Vse publikacii na tu zhe temu >>