Planetary nebula NGC 6818

This Wide Field and Planetary Camera 2image of NGC 6818 shows two distinct layers of gas (with dust): a spherical outer region and a brighter, vase-shaped interior 'bubble.' Astronomers believe that a fast wind - material propelled by radiation from the hot central star - is creating the inner elongated shape. The central star of the planetary nebula appears as a tiny blue dot. The material in the wind is traveling so fast that it smashes through older, slower-moving stellar debris, causing a 'blowout' at both ends of the bubble (lower right and upper left).


Robert Rubin (NASA/ESA Ames Research Center), Reginald Dufour and Matt Browning (Rice University), Patrick Harrington (University of Maryland), and NASA/ESA

About the Image

NASA press release
NASA caption
Release date:19 March 1998, 06:00
Size:598 x 583 px

About the Object

Name:IRAS 19411-1416, Little Gem Nebula, NGC 6818
Type:Milky Way : Nebula : Type : Planetary

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Screensize JPEG
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