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Eskimo Nebula

NGC 2392

Nebulosa Planetária Excelente (67/100)
C39 PlanetaryNebula Gemini Visível Nível 3 Medium telescope (6-8") - Benefits from OIII filter
Credit: NASA, ESA, Andrew Fruchter (STScI), and the ERO team (STScI + ST-ECF). License: Public domain. (Wikimedia Commons)
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Propriedades

Magnitude 9.2
Tamanho Angular 0.9′
Distância 5000 ly
Planetary Nebula [Distance: 5000 ly]

Posição e Identificadores

RA 07h 29m 10.8s
Dec +20° 54' 43.2"
Constelação Gemini
Catálogo C39

Visibilidade

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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)

Credit: NASA, ESA, Andrew Fruchter (STScI), and the ERO team (STScI + ST-ECF). License: Public domain. (Wikimedia Commons)

Skybred Mar 2, 2026