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Eskimo Nebula Nebulae of our galaxy

Eskimo Nebula Nebulae of our galaxy


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The Eskimo Nebula NGC 2392, also called "rotten egg", is located in the constellation of Gemini, about 5000 light years from Earth. The image was obtained on January 10, 2000, after the repair made by the astronauts on the Hubble Space Telescope. In the photo, nitrogen looks red, green hydrogen, blue oxygen and violet helium.

NGC 2392 is a planetary nebula. In reality, planetary nebulae have little to do with planets. Today, planetary nebula is called gas bubbles ejected by dying solar-type stars.

This planetary nebula was first studied by William Herschel in 1787. Apparently, during the red giant phase, the central star originated a dense equatorial ring that expands at about 115,000 km / h. Later, when the central star exploded (10,000 years ago), there was a high-speed stellar wind (1.5 million km / h) that, when colliding with the ring, gave rise to the two bubbles or polar lobes in rapid expansion that are partially overlaid here. The Eskimo fur hood is actually a set of kite-shaped objects arranged radially. The diameter of the polar lobes is approximately half a light year.

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