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Explanation: The layers of the Saturn Nebula give a complex picture of how this planetary nebula was created. The above picture, taken in April 1996 and released last week, allows a better understanding of the mysterious process that transformed a low-mass star into a white dwarf star. A computer model indicates that the central star of NGC 7009 first expelled the green gas that now appears barrel shaped. This green gas now confines stellar winds flowing from the central star, creating a jet which forms the ansae that appear in red at the tips. Much remains unknown, including why the gas has not become turbulent.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: Saturn - planetary nebula
Publications with words: Saturn - planetary nebula
See also:
- APOD: 2026 January 5 Á The Red Rectangle Nebula from Hubble
- APOD: 2025 October 5 Á A Long Storm System on Saturn
- APOD: 2024 April 30 Á GK Per: Nova and Planetary Nebula
- APOD: 2025 November 16 Á Crossing Saturns Ring Plane
- APOD: 2025 September 25 Á Saturn Opposite the Sun
- APOD: 2025 September 22 Á Equinox at Saturn
- APOD: 2025 August 31 Á NGC 7027: The Pillow Planetary Nebula