Little Ghost Nebula, also known as NGC 6369, is a planetary nebula in the constellation Ophiuchus. [2] . It was discovered by William Herschel in 1784. [3][4][5] Round and planet-shaped, the nebula is also relatively faint. The high energy radiation from the central white dwarf causes the surrounding nebula to emit light. [6] .

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.

Known to amateur astronomers as the 'Little Ghost Nebula', because it appears as a small, ghostly cloud surrounding a faint dying star, NGC 6369 lies in the direction of the constellation Ophiuchus. The NASA/ESA Hubble Space Telescope took this image of the planetary nebula NGC 6369, at a distance estimated to be between about 2000 and 5000 ...

2002年11月7日 · NASA's Hubble Space Telescope has caught a glimpse of a colorful cosmic ghost, the glowing remains of a dying star called NGC 6369. The glowing apparition is known to amateur astronomers as the "Little Ghost Nebula," because it appears as a small, ghostly cloud surrounding the faint, dying central star.

NGC 6369 is a double-shell planetary nebula. A bright annular inner shell with faint bipolar extensions is surrounded by a filamentary envelope. The inner shell can be described as a barrel-like structure shape with polar bubble-like protrusions.

NGC 6369: A Donut Shaped Nebula Credit: H. Bond , R. Ciardullo , WFPC2, HST, NASA. Explanation: Why isn't the star in the center of the nebula? NGC 6369 appears to be a fairly ordinary planetary nebula. It can be seen with a good telescope in the constellation of Ophiuchus. The gas expelled by the central star is bunched in the shape of a donut ...

It is a white dwarf of pulsating type (known as V2310 Ophiuchi), that emits strong ultraviolet radiation which ionizes the gas pushed by itself in the last phase of its life cycle. If observed in radio waves, NGC 6369 appears to be the third brightest planetary nebula in the sky.

We present the results of mapping the planetary nebula NGC 6369 by usingmultiple long-slit spectra taken with the Cerro Tololo Inter-AmericanObservatory 1.5 m telescope. We create two-dimensional emission-lineimages from our spectra and use these to derive fluxes for 17 lines, theHα/Hβ extinction map, the [S II ] line ratio density map ...

NGC 6369 - Raw fits data obtained from Hubble Legacy Archive. Little Ghost Nebula is a planetary nebula in the constellation Ophiuchus discovered by William Herschel. At a distance of 2000 to 5000 light years the main ring is about 1 light year across.

NGC 6369, The Little Ghost Nebula Object Description Planetary Nebula R.A. Position 17h 29m 20.4s Dec. Position-23° 45' 37.9" Constellation Ophiuchus Distance 2,000 - 5,000 light-years (600 - 1,500 parsecs) Dimensions This image is 2.4 arcminutes across. At a distance of 3,500 light-years, this width corresponds to 2.5 light-years (0.75 parsecs).