butterfly, a white dwarf star begins its life by casting off a cocoon that enclosed its former self. In this analogy, however, the Sun would be a caterpillar and the ejected shell of gas would become the prettiest of all! The above cocoon, the planetary nebula designated NGC 2440, contains one of the hottest white dwarf stars known. The white dwarf can be seen as the bright dot near the photo's center. Our Sun will eventually become a "white dwarf butterfly", but not for another 5 billion years. The above false color image and was post-processed by Forrest Hamilton.
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& Michigan Tech. U.
Based on Astronomy Picture Of the Day
Publications with keywords: dwarf galaxy - planetary nebula - white dwarf
Publications with words: dwarf galaxy - planetary nebula - white dwarf
- M2 9: Wings of a Butterfly Nebula
- The Helix Nebula from Blanco and Hubble
- APOD: 2020 August 14 Á NGC 5189: An Unusually Complex Planetary Nebula
- Bright Planetary Nebula NGC 7027 from Hubble
- Halo of the Cats Eye
- NGC 2392: Double Shelled Planetary Nebula
- MyCn 18: The Engraved Hourglass Planetary Nebula