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- Westbrook_Nebula abstract "Westbrook Nebula (CRL 618) is an asphericalprotoplanetary nebula. It is being formed by a star that has passed through the red giant phase and has ceased nuclear fusion at its core. This star is concealed at the center of the nebula, and is ejecting gas and dust at velocities of up to 200 km/s. The nebula is named after William E. Westbrook, who died in 1975.This nebula began to form about 200 years ago, and primarily consists of molecular gas. The outer part of the nebula is the result of interaction between rapid bi-polar outflow and the gas that was ejected when the star was passing through its asymptotic giant branch phase. The lobes are inclined about 24° to the line of sight. The energy being radiatedfrom the nebula consists of scattered light from the star at the core, light being emitted from a compact HII region surrounding the star, and energy from the shock-excited gas in the lobes.The core star is believed to be of spectral class B0 and has 12,200 times the solar luminosity.".
- Westbrook_Nebula wikiPageID "22443683".
- Westbrook_Nebula wikiPageRevisionID "597305753".
- Westbrook_Nebula caption "Hubble image of the Westbrook Nebula".
- Westbrook_Nebula credit European_Space_Agency.
- Westbrook_Nebula credit Hubble_Space_Telescope.
- Westbrook_Nebula credit NASA.
- Westbrook_Nebula epoch Epoch_(astronomy).
- Westbrook_Nebula hasPhotoCollection Westbrook_Nebula.
- Westbrook_Nebula name "Westbrook Nebula".
- Westbrook_Nebula names "CRL 618, IRAS 04395+3601, 2MASS J04425364+3606534, RAFGL 618".
- Westbrook_Nebula subject Category:Protoplanetary_nebulae.
- Westbrook_Nebula type Abstraction100002137.
- Westbrook_Nebula type Chemical114806838.
- Westbrook_Nebula type Compound114818238.
- Westbrook_Nebula type Formulation114873641.
- Westbrook_Nebula type Material114580897.
- Westbrook_Nebula type Matter100020827.
- Westbrook_Nebula type Nebula114960606.
- Westbrook_Nebula type Part113809207.
- Westbrook_Nebula type PhysicalEntity100001930.
- Westbrook_Nebula type ProtoplanetaryNebulae.
- Westbrook_Nebula type Relation100031921.
- Westbrook_Nebula type Substance100019613.
- Westbrook_Nebula comment "Westbrook Nebula (CRL 618) is an asphericalprotoplanetary nebula. It is being formed by a star that has passed through the red giant phase and has ceased nuclear fusion at its core. This star is concealed at the center of the nebula, and is ejecting gas and dust at velocities of up to 200 km/s. The nebula is named after William E. Westbrook, who died in 1975.This nebula began to form about 200 years ago, and primarily consists of molecular gas.".
- Westbrook_Nebula label "CRL 618".
- Westbrook_Nebula label "Mgławica Westbrook".
- Westbrook_Nebula label "Nébuleuse de Westbrook".
- Westbrook_Nebula label "Westbrook Nebula".
- Westbrook_Nebula label "韋斯特布魯克星雲".
- Westbrook_Nebula sameAs CRL_618.
- Westbrook_Nebula sameAs Nébuleuse_de_Westbrook.
- Westbrook_Nebula sameAs Mgławica_Westbrook.
- Westbrook_Nebula sameAs m.05zlzq2.
- Westbrook_Nebula sameAs Q1024291.
- Westbrook_Nebula sameAs Q1024291.
- Westbrook_Nebula sameAs Westbrook_Nebula.
- Westbrook_Nebula wasDerivedFrom Westbrook_Nebula?oldid=597305753.
- Westbrook_Nebula isPrimaryTopicOf Westbrook_Nebula.