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Credit & Copyright: Hubble Heritage Team,
NASA
Explanation:
This pretty planetary nebula, cataloged as
NGC 6369, was discovered
by 18th century astronomer
William Herschel as he used a
telescope to explore the constellation
Ophiucus.
Round and planet-shaped, the nebula
is also relatively
faint
and has acquired the popular moniker of
Little Ghost Nebula.
Planetary
nebulae in general are
not at all related to planets,
but instead are created at the end of a sun-like star's life as its
outer layers expand
into space while the star's core shrinks to become
a white dwarf.
The transformed white dwarf star,
seen near the center,
radiates strongly at ultraviolet wavelengths and powers the expanding
nebula's glow.
Surprisingly complex
details
and structures of NGC 6369 are revealed in this
delightful
color image composed from Hubble Space Telescope
data.
The nebula's main ring structure is about a light-year across and
the glow from ionized oxygen, hydrogen, and nitrogen atoms
are colored
blue, green, and red respectively.
Over 2,000 light-years away, the
Little Ghost Nebula offers a glimpse
of the fate of our Sun, which should produce its own pretty planetary
nebula only about 5 billion years from now.
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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: planetary nebula - Herschel
Publications with words: planetary nebula - Herschel
See also:
- The Medusa Nebula
- Jones Emberson 1
- APOD: 2024 February 12 Á HFG1 & Abell 6: Planetary Nebulae
- APOD: 2023 December 24 Á NGC 2440: Cocoon of a New White Dwarf
- APOD: 2023 October 3 Á MyCn 18: The Engraved Hourglass Planetary Nebula
- NGC 1360: The Robin's Egg Nebula
- APOD: 2023 April 16 Á M2 9: Wings of a Butterfly Nebula