Explanation: Sprawling across almost 200 light-years, emission nebula IC 1805 is a mix of glowing interstellar gas and dark dust clouds. Derived from its Valentine's-Day-approved shape, its nickname is the Heart Nebula. About 7,500 light-years away in the Perseus spiral arm of our galaxy, stars were born in IC 1805. In fact, near the cosmic heart's center are the massive hot stars of a newborn star cluster also known as Melotte 15, about 1.5 million years young. A little ironically, the Heart Nebula is located in the constellation Cassiopeia. From Greek mythology, the northern constellation is named for a vain and boastful queen. This deep view of the region around the Heart Nebula, cropped from a larger mosaic, spans about 2.5 degrees on the sky or about 5 times the diameter of the Full Moon.

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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: Cassiopeja - star formation - zvezdoobrazovanie - emissionnaya tumannost' - zvezdnoe skoplenie Publikacii so slovami: Cassiopeja - star formation - zvezdoobrazovanie - emissionnaya tumannost' - zvezdnoe skoplenie
Sm. takzhe: Okolo tumannosti Serdce Slonovii hobot v Cefee IC 348 i Barnard 3 Prizraki v Kassiopee M16: stolpy sozidaniya Melott 15 v tumannosti Serdce Molodoe zvezdnoe skoplenie NGC 1333 Vse publikacii na tu zhe temu >>