NGC 6369

NGC 6369

Little Ghost nebula
Right ascension 17h 29m 20.443s[1]
Declination −23° 45′ 34.22″[1]
Distance 2.0 ± 5.0 kly
Apparent magnitude (V) 12.9[1]
Apparent dimensions (V) 38 ′
Constellation Ophiuchus
Physical characteristics
Other designations NGC 6369,[1] PK 002+05 1[1]
See also: Planetary nebula, Lists of nebulae

Little Ghost Nebula is a planetary nebula in the constellation Ophiuchus. It was discovered by William Herschel.[2]

Round and planet-shaped, the nebula is also relatively faint. Planetary nebulae are not related to planets at all, 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. 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.

References

  • NGC 6369

, −23° 45′ 34.22″