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NGC 1501 (Planetary Nebula)


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NGC 1501
Planetary Nebula (惑星状星雲)
Nb PN


別名 (Other names)
PK 144+6.1, PN G 144.5+06.5, GC 801, CS 14.4, H 4.53

明るさ (Brightness)
11.5等級

星座 (Constellation)
きりん座 (Cam) (Camelopardalis)

距離 (Distance)
5,000光年 (5,000 light-years)

NGC 1501 is a planetary nebula located 5,000 light years from the Earth in the constellation Camelopardalis.

NGC 1501 (Planetary Nebula) : Picture

NGC 1501 (Planetary Nebula)
NGC 1501 (Planetary Nebula)
(C) NASA/ESA/Hubble
This new image from Hubble’s Wide Field Planetary Camera 2 showcases NGC 1501, a complex planetary nebula located in the large but faint constellation of Camelopardalis.

Discovered by William Herschel in 1787, NGC 1501 is a planetary nebula that is just under 5,000 light-years away from us. Astronomers have modelled the three-dimensional structure of the nebula, finding it to be a cloud shaped as an irregular ellipsoid filled with bumpy and bubbly regions. It has a bright central star that can be seen easily in this image, shining brightly from within the nebula’s cloud. This bright pearl embedded within its glowing shell inspired the nebula’s popular nickname: the Oyster Nebula.

While NGC 1501's central star blasted off its outer shell long ago, it still remains very hot and luminous, although it is quite tricky for observers to spot through modest telescopes. This star has actually been the subject of many studies by astronomers due to one very unusual feature: it seems to be pulsating, varying quite significantly in brightness over a typical timescale of just half an hour. While variable stars are not unusual, it is uncommon to find one at the heart of a planetary nebula.

NGC 1501 (Planetary Nebula)
NGC 1501 (Planetary Nebula)
(C) NASA/ESA

NGC 1501
Collage of top images in the Hidden Treasures image processing competition
(C) NASA/ESA
Top row: NGC 1763 by Josh Lake, M 77 by Andre van der Hoeven, XZ Tauri by Judy Schmidt, Chamaeleon I by Renaud Houdinet, M 96 by Robert Gendler

Bottom row: SNR 0519-69 by Claude Cornen, PK 111-2.1 by Josh Barrington, NGC 1501 by kyokugaisha1, Abell 68 by Nick Rose, IC 10 by Nikolaus Sulzenauer

NGC 1501 (Planetary Nebula) NGC 1501 (Planetary Nebula)
NGC 1501 (Planetary Nebula)
(C) NASA/ESA/Hubble
NGC 1501 (Planetary Nebula)
(C) NASA/ESA
NGC 1501 (Planetary Nebula) NGC 1501 (Planetary Nebula)
NGC 1501 (Planetary Nebula)
(C) NASA/ESA/Hubble
NGC 1501 (Planetary Nebula)
(C) Adam Block/NOAO/AURA/NSF
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NGC 1501 (Planetary Nebula) : Movie

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