Eskimo Nebula
NGC 2392
Dados do Objeto
- Designação do Catálogo
- C39
- Tipo
- PlanetaryNebula
- Constelação
- Gemini
- Magnitude
- 9.2
- Ascensão Reta
- 07h 29m 10.8s
- Declinação
- +20° 54' 43.2"
- Distância
- 5,000 anos-luz
- Tamanho Angular
- 0.8
Imagem de Levantamento
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Sobre Eskimo Nebula
Descrição
The Eskimo Nebula (NGC 2392) is a planetary nebula in Gemini, about 6,500 light-years away. In telescopes, it shows a bright central disk surrounded by a fainter outer shell, which together resemble a face surrounded by a fur-lined parka hood.
Dicas de Observação
One of the brightest and most rewarding planetary nebulae. A 4-inch telescope easily shows the bright disk. At 150x+ in an 8-inch scope, the double-shell structure becomes visible. An OIII filter helps with the outer shell. Best in winter and spring evenings.
História
Discovered by William Herschel on January 17, 1787. The Hubble Space Telescope revealed intricate radial filaments in the outer shell that gave the "fur hood" its texture.
Curiosidades
The inner shell is expanding at about 90 km/s while the outer shell moves at about 40 km/s, suggesting two separate ejection events. The central star has a surface temperature of 40,000 K.
Fotos da Comunidade (1)
Credit: NASA, ESA, Andrew Fruchter (STScI), and the ERO team (STScI + ST-ECF). License: Public domain. (Wikimedia Commons)
Skybred Mar 2, 2026