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- V509_Cassiopeiae abstract "V509 Cassiopeiae (V509 Cas) is a star in the constellation Cassiopeia. V509 Cassiopeiae is yellow hypergiant with a G-type and an apparent magnitude that has varied from below +6 in historical times to a peak of +4.3 and now around +5.2. It is around 4,500 light years from Earth. It is classified as a semiregular variable star of type SRd. Characteristic periods around a year are reported imposed on the slower secular variations. It is undergoing strong mass loss as part of its rapid evolution. It has recently passed through the yellow evolutionary void by ejecting around a solar mass of material in less than 50 years.A hot main sequence companion (B1V) was described in 1978 on the basis of a colour excess in the ultraviolet but has not been reported since.This type of star has evolved from an initial mass of 25-40 times the sun to a red hypergiant and is now shedding its remaining outer layers in a series of dramatic explosions, progressively increasing in temperature. It may become a blue supergiant or luminous blue variable before declining in luminosity as a late type Wolf–Rayet star, but is expected to explode as a supernova before that point.".
- V509_Cassiopeiae wikiPageExternalLink v509-cassiopeiae.shtml.
- V509_Cassiopeiae wikiPageExternalLink hr8752.html.
- V509_Cassiopeiae wikiPageID "5096042".
- V509_Cassiopeiae wikiPageRevisionID "599419855".
- V509_Cassiopeiae absmagV "−8.6".
- V509_Cassiopeiae age "?".
- V509_Cassiopeiae appmagV "+4.6 - +5.2".
- V509_Cassiopeiae bV "+1.0 - +1.7".
- V509_Cassiopeiae class "G0Ia0".
- V509_Cassiopeiae constell Cassiopeia_(constellation).
- V509_Cassiopeiae dec "+56°56′43″".
- V509_Cassiopeiae distLy "4500".
- V509_Cassiopeiae distPc "1370".
- V509_Cassiopeiae epoch Epoch_(astronomy).
- V509_Cassiopeiae hasPhotoCollection V509_Cassiopeiae.
- V509_Cassiopeiae luminosity "200".
- V509_Cassiopeiae mass "11".
- V509_Cassiopeiae metal "?".
- V509_Cassiopeiae pError "0.25".
- V509_Cassiopeiae parallax "0.73".
- V509_Cassiopeiae propMoDec "−3.09".
- V509_Cassiopeiae propMoRa "−2.94".
- V509_Cassiopeiae ra "5.1".
- V509_Cassiopeiae radialV "−58".
- V509_Cassiopeiae radius "400".
- V509_Cassiopeiae rotation "?".
- V509_Cassiopeiae temperature "4000".
- V509_Cassiopeiae uB "+1.16".
- V509_Cassiopeiae variable Semiregular_variable_star.
- V509_Cassiopeiae subject Category:Cassiopeia_(constellation).
- V509_Cassiopeiae subject Category:G-type_hypergiants.
- V509_Cassiopeiae subject Category:HR_objects.
- V509_Cassiopeiae subject Category:Henry_Draper_Catalogue_objects.
- V509_Cassiopeiae subject Category:Objects_named_with_variable_star_designations.
- V509_Cassiopeiae subject Category:Objects_within_10_kly_of_Earth.
- V509_Cassiopeiae subject Category:Semiregular_variable_stars.
- V509_Cassiopeiae type CelestialBody.
- V509_Cassiopeiae type Star.
- V509_Cassiopeiae type PhysicalBody.
- V509_Cassiopeiae comment "V509 Cassiopeiae (V509 Cas) is a star in the constellation Cassiopeia. V509 Cassiopeiae is yellow hypergiant with a G-type and an apparent magnitude that has varied from below +6 in historical times to a peak of +4.3 and now around +5.2. It is around 4,500 light years from Earth. It is classified as a semiregular variable star of type SRd. Characteristic periods around a year are reported imposed on the slower secular variations.".
- V509_Cassiopeiae label "V509 Cassiopeiae".
- V509_Cassiopeiae label "V509 Cassiopeiae".
- V509_Cassiopeiae label "V509 Cassiopeiae".
- V509_Cassiopeiae label "V509 Cassiopeiae".
- V509_Cassiopeiae label "V509 Cassiopeiae".
- V509_Cassiopeiae label "V509 Cassiopeiae".
- V509_Cassiopeiae label "V509 Кассиопеи".
- V509_Cassiopeiae label "カシオペヤ座V509星".
- V509_Cassiopeiae label "仙后座V509".
- V509_Cassiopeiae sameAs V509_Cassiopeiae.
- V509_Cassiopeiae sameAs V509_Cassiopeiae.
- V509_Cassiopeiae sameAs V509_Cassiopeiae.
- V509_Cassiopeiae sameAs カシオペヤ座V509星.
- V509_Cassiopeiae sameAs 카시오페이아자리_V509.
- V509_Cassiopeiae sameAs V509_Cassiopeiae.
- V509_Cassiopeiae sameAs V509_Cassiopeiae.
- V509_Cassiopeiae sameAs m.0d2gwm.
- V509_Cassiopeiae sameAs Q906905.
- V509_Cassiopeiae sameAs Q906905.
- V509_Cassiopeiae wasDerivedFrom V509_Cassiopeiae?oldid=599419855.
- V509_Cassiopeiae isPrimaryTopicOf V509_Cassiopeiae.
- V509_Cassiopeiae name "V509 Cassiopeiae".