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The
Necklace Nebula is the exploded aftermath of a giant star that came too close to its Sun-like binary companion. The two stars that produced the Necklace Nebula are in a relatively small orbit about each other. They have a period of 1.2 days and a separation on the order of 5 times the radius of
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About 10,000 years ago one of the aging stars ballooned to the point where it engulfed its companion star. The smaller star continued orbiting inside its larger companion, increasing the giant's rotation rate.
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The interaction of two doomed stars has created this spectacular ring adorned with bright clumps of gas — a diamond necklace of cosmic proportions.
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355:"The Necklace: equatorial and polar outflows from the binary central star of the new planetary nebula IPHASX J194359.5+170901"
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image of the
Necklace Nebula, displaying the hydrogen (blue), oxygen (green), and nitrogen (red) emission.
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spun so fast that a large part of its gaseous envelope expanded into space. Due to
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414:"First release of the IPHAS catalogue of new extended planetary nebulae"
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173:(PN G054.2-03.4) is a 19-trillion-kilometre-wide (2.0 light-year-wide)
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262:, NASA press release dated August 11, 2011.This article incorporates
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located about 15,000 light-years away in the northern constellation
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Data
Release 2: Summary of the contents and survey properties"
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IRAS 19417+1701, IPHASXJ194359.5+170901, PN G054.2-03.4
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Hubble Offers a
Dazzling View of the 'Necklace' Nebula
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Technical data on
Necklace Nebula & Hubble image
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282:; et al. (Gaia collaboration) (August 2018).
418:Monthly Notices of the Royal Astronomical Society
359:Monthly Notices of the Royal Astronomical Society
183:Isaac Newton Telescope Photometric H-alpha Survey
353:Corradi, R. L. M.; et al. (January 2011).
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474:Centre de données astronomiques de Strasbourg
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16:Planetary nebula in the constellation Sagitta
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84:+17° 09′ 00.9579″
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266:text from this US government website.
181:. It was discovered in 2005 from the
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260:Hubble Offers a Dazzling 'Necklace'
143:4.4 ly (1.35 pc) pc
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553:This nebula-related article is a
497:Space Telescope Science Institute
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390:10.1111/j.1365-2966.2010.17523.x
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334:Gaia DR2 record for this source
189:planetary nebula study of the
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557:. You can help Knowledge by
293:Astronomy & Astrophysics
327:10.1051/0004-6361/201833051
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509:"In the Sky with Diamonds"
96:(4.6 ± 1.1
92:15.0 ± 3.6
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185:(IPHAS), a ground-based
133:Physical characteristics
317:2018A&A...616A...1G
449:10.1093/mnras/stu1404
191:North Galactic Plane
440:2014MNRAS.443.3388S
381:2011MNRAS.410.1349C
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56:Observation data:
604:Planetary nebulae
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464:"IRAS 19417+1701"
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108:Apparent diameter
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162:Lists of nebulae
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242:References
160:See also:
514:April 24,
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197:the Sun.
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89:Distance
609:Sagitta
436:Bibcode
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220:Gallery
214:equator
187:H-alpha
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
