NGC 2392 |
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Deep Sky Object Chart
| Stars in Gemini
| M35
| Eskimo
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On closer inspection, especially in larger instruments and darker skies, a vivid turquoise color can be seen. The Eskimo nickname is derived from the presence of a fainter ring of material outside the obvious disk, suggesting a parka snugly wrapped around a face. This outer ring can be seen if the sky is dark, as suggestions of irregular clumps within it in the best instruments. A gas shell ejected from a star at the end of it's life cycle, this nebula is estimated to be about 3,000 light years - at this distance, the outer gas ring spans half a light year. Billions of years from now, our sun will blow a smoke signal like this into the galaxy, as our Earth cools into a frozen iceball. Creepy? Sure - but pretty too.
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