| dbo:abstract |
V Hydrae (V Hya) is a carbon star in the constellation Hydra. To date perhaps uniquely in our galaxy it has plasma ejections/eruptions on a grand scale every 8.5 years caused by its near, unseen companion in an 8.5 year orbit, inferred by its ultraviolet excess and periastron passage likely through the outer parts of the star itself. (en) うみへび座V星（うみへびざVせい）は、うみへび座の脈動変光星。 (ja) V Hydrae är en halvregelbunden variabel av SRA-typ i stjärnbilden Vattenormen. Stjärnan varierar mellan visuell magnitud +6,0 och 12,3 med en period av 530,7 dygn. (sv) 長蛇座V（V Hydrae，縮寫：V Hya）是一顆位於長蛇座的碳星。這顆垂死恆星因為發現噴發高溫電漿物質現象而受到天文學家的注目，並且被認為是研究恆星形成行星狀星雲過程的重要天體。 (zh) V Гідри (V Hydrae, V Hya) – вуглецева зоря у сузір'ї Гідри. (uk) |
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wiki-commons:Special:FilePath/Hydra_constellation_map.svg?width=300 |
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9635 (xsd:nonNegativeInteger) |
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| dbo:wikiPageWikiLink |
dbr:Carbon_monoxide dbr:Mira_variable dbr:Bonner_Durchmusterung dbr:Hydra_(constellation) dbc:Asymptotic-giant-branch_stars dbc:Durchmusterung_objects dbc:Hipparcos_objects dbc:Hydra_(constellation) dbc:Objects_with_variable_star_designations dbc:Semiregular_variable_stars dbr:Constellation dbr:Dredge-up dbr:2MASS dbr:Carbon_star dbr:Asymptotic_giant_branch dbr:Semiregular_variable_star dbc:Carbon_stars dbr:Planetary_nebula dbr:IRAS dbr:Asymptotic_Giant_Branch dbr:Washington_Double_Star_Catalog dbr:Semiregular_variable dbr:Variable_star_designation dbr:Hipparcos_catalogue dbr:File:VHyaLightCurve.png dbr:File:Artist's_Illustration_of_Scenario_for_Plasma_Ejections_from_V_Hydrae.jpg |
| dbp:absmagV |
−3.5 to +1.8 (en) |
| dbp:appmagV |
6 (xsd:integer) |
| dbp:bV |
+5.43 (en) |
| dbp:class |
C6,3e-C7,5e (en) |
| dbp:component |
A (en) B (en) |
| dbp:constell |
dbr:Hydra_(constellation) |
| dbp:eccentricity |
≥0.6 (en) |
| dbp:epoch |
J2000 (en) |
| dbp:gravity |
−0.5 (en) |
| dbp:luminosity |
7850 (xsd:integer) |
| dbp:mass |
1 (xsd:integer) <1 (en) |
| dbp:pError |
1.410000 (xsd:double) |
| dbp:parallax |
1.440000 (xsd:double) |
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8.500000 (xsd:double) |
| dbp:propMoDec |
2.290000 (xsd:double) (en) |
| dbp:propMoRa |
(en) −11.02 ± 1.14 (en) |
| dbp:radialV |
−14.80 (en) |
| dbp:radius |
420 (xsd:integer) |
| dbp:rotationalVelocity |
11 (xsd:integer) |
| dbp:temperature |
2650 (xsd:integer) |
| dbp:variable |
dbr:Semiregular_variable |
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| dcterms:subject |
dbc:Asymptotic-giant-branch_stars dbc:Durchmusterung_objects dbc:Hipparcos_objects dbc:Hydra_(constellation) dbc:Objects_with_variable_star_designations dbc:Semiregular_variable_stars dbc:Carbon_stars |
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dbr:Star |
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| rdfs:comment |
V Hydrae (V Hya) is a carbon star in the constellation Hydra. To date perhaps uniquely in our galaxy it has plasma ejections/eruptions on a grand scale every 8.5 years caused by its near, unseen companion in an 8.5 year orbit, inferred by its ultraviolet excess and periastron passage likely through the outer parts of the star itself. (en) うみへび座V星（うみへびざVせい）は、うみへび座の脈動変光星。 (ja) V Hydrae är en halvregelbunden variabel av SRA-typ i stjärnbilden Vattenormen. Stjärnan varierar mellan visuell magnitud +6,0 och 12,3 med en period av 530,7 dygn. (sv) 長蛇座V（V Hydrae，縮寫：V Hya）是一顆位於長蛇座的碳星。這顆垂死恆星因為發現噴發高溫電漿物質現象而受到天文學家的注目，並且被認為是研究恆星形成行星狀星雲過程的重要天體。 (zh) V Гідри (V Hydrae, V Hya) – вуглецева зоря у сузір'ї Гідри. (uk) |
| rdfs:label |
うみへび座V星 (ja) V Hydrae (en) V Hydrae (sv) 長蛇座V (zh) V Гідри (uk) |
| owl:sameAs |
freebase:V Hydrae yago-res:V Hydrae wikidata:V Hydrae dbpedia-af:V Hydrae dbpedia-fa:V Hydrae dbpedia-ja:V Hydrae dbpedia-sv:V Hydrae dbpedia-uk:V Hydrae dbpedia-zh:V Hydrae https://global.dbpedia.org/id/4iMo4 |
| prov:wasDerivedFrom |
wikipedia-en:V_Hydrae?oldid=1065324243&ns=0 |
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wiki-commons:Special:FilePath/Red_circle.svg wiki-commons:Special:FilePath/Artist's_Illustration...or_Plasma_Ejections_from_V_Hydrae.jpg wiki-commons:Special:FilePath/Hydra_constellation_map.svg wiki-commons:Special:FilePath/VHyaLightCurve.png |
| foaf:isPrimaryTopicOf |
wikipedia-en:V_Hydrae |
| foaf:name |
V Hydrae (en) |
| is dbo:wikiPageWikiLink of |
dbr:Hydra_(constellation) dbr:List_of_stars_in_Hydra |
| is foaf:primaryTopic of |
wikipedia-en:V_Hydrae |
