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NGC 6826 (Blinking Eye Nebula)


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NGC 6826
Blinking Eye Nebula (まばたき星雲)
Planetary Nebula (惑星状星雲)
Nb PN


別名 (Other names)
PK 83+12.1, Caldwell 15

明るさ (Brightness)
8.8等級

星座 (Constellation)
はくちょう座 (Cyg) (Cygnus)

NGC 6826 (Blinking Eye Nebula) is a planetary nebula in the constellation Cygnus.

NGC 6826 (Blinking Eye Nebula) : Picture

NGC 6826: The Blinking Eye
NGC 6826: The Blinking Eye
(C) B. Balick, J. Alexander (University of Washington), et al., NASA
The colorful planetary nebula phase of a sun-like star's life is brief. Almost in the "blink of an eye" - cosmically speaking - the star's outer layers are cast off, forming an expanding emission nebula. This nebula lasts perhaps 10 thousand years compared to a 10 billion year stellar life span. Spectacular planetary nebulae are familiar objects to both professional and amateur astronomers, but they still contain a few surprises. For instance, the lovely nebula NGC 6826, also known as the Blinking Eye Nebula, has mysterious red FLIERS seen on either side of the Hubble Space Telescope image above. Are they also expanding outward from the central star? If so, their "bow shocks" point in the wrong direction!

NGC6826 NGC6826
NGC 6826
(C) NASA
NGC 6826
(C) NASA
NGC6826
NGC 6826
(C) NASA

NGC6826
NGC 6826
(C) NASA
This gallery shows four planetary nebulas from the first systematic survey of such objects in the solar neighborhood made with NASA's Chandra X-ray Observatory. The planetary nebulas shown here are NGC 6543, also known as the Cat's Eye, NGC 7662, NGC 7009 and NGC 6826. In each case, X-ray emission from Chandra is colored purple and optical emission from the Hubble Space Telescope is colored red, green and blue.
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NGC 6826 (Blinking Eye Nebula) : Movie

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