Upsilon2 Hydrae (original) (raw)
Upsilon2 Hydrae (40 Hydrae) é uma estrela na direção da constelação de Hydra. Possui uma ascensão reta de 10h 05m 07.49s e uma declinação de −13° 03′ 52.8″. Sua magnitude aparente é igual a 4.60. Considerando sua distância de 277 anos-luz em relação à Terra, sua magnitude absoluta é igual a −0.05. Pertence à classe espectral B8V.
| Property | Value |
|---|---|
| dbo:abstract | Upsilon2 Hydrae, Latinised from υ2 Hydrae, is a solitary star in the equatorial constellation of Hydra. Visible to the naked eye, it is photometrically stable with an apparent visual magnitude of 4.59. Based upon an annual parallax shift of 10.40 mas as seen from Earth, it is located about 314 light-years from the Sun. This is a B-type star with a stellar classification of B9 III-IV, showing partial traits of a subgiant and giant star in its spectrum. However, Zorec and Royer (2012) estimate the star still only 79% of the way through its life span on the main sequence. With an age of around 97 million years, it is spinning with a projected rotational velocity of 58 km/s. The star has an estimated 3.29 times the mass of the Sun and around 3.2 times the Sun's radius. It is radiating 182 times the solar luminosity from its photosphere at an effective temperature of about 11,758 K. (en) Upsilon2 Hydrae (40 Hydrae) é uma estrela na direção da constelação de Hydra. Possui uma ascensão reta de 10h 05m 07.49s e uma declinação de −13° 03′ 52.8″. Sua magnitude aparente é igual a 4.60. Considerando sua distância de 277 anos-luz em relação à Terra, sua magnitude absoluta é igual a −0.05. Pertence à classe espectral B8V. (pt) Ypsilon2 Hydrae (υ2 Hydrae, förkortat Ypsilon2 Hya, υ2 Hya) är en ensam stjärna belägen i den mellersta delen av stjärnbilden Vattenormen. Den har en skenbar magnitud på 4,59 och är synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 10,4 mas, beräknas den befinna sig på ett avstånd på ca 314 ljusår (ca 96 parsek) från solen. (sv) |
| dbo:wikiPageID | 37132801 (xsd:integer) |
| dbo:wikiPageLength | 7690 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID | 1121994023 (xsd:integer) |
| dbo:wikiPageWikiLink | dbr:Bayer_designation dbr:B-type_star dbr:Hydra_(constellation) dbr:Durchmusterung dbr:Stellar_classification dbc:B-type_giants dbc:B-type_subgiants dbc:Bayer_objects dbc:Bright_Star_Catalogue_objects dbc:Durchmusterung_objects dbc:Flamsteed_objects dbc:Henry_Draper_Catalogue_objects dbc:Hipparcos_objects dbc:Hydra_(constellation) dbr:Constellation dbr:Photosphere dbr:Effective_temperature dbr:Light-year dbr:Main_sequence dbr:Star dbr:Subgiant dbr:Henry_Draper_Catalogue dbr:Photometry_(astronomy) dbr:Stellar_parallax dbr:Spectrum dbr:Latinisation_of_names dbr:Bright_Star_Catalogue dbr:Celestial_equator dbr:International_Celestial_Reference_System dbr:J2000.0 dbr:Solar_luminosity dbr:Sun dbr:Apparent_visual_magnitude dbr:FK5 dbr:Hipparcos_Catalogue dbr:Smithsonian_Astrophysical_Observatory_Star_Catalog dbr:Flamsteed_designation dbr:Giant_star dbr:Milliarcsecond dbr:Mass_of_the_Sun dbr:Sun's_radius dbr:Projected_rotational_velocity |
| dbp:absmagV | −0.31 (en) |
| dbp:ageMyr | 97 (xsd:integer) |
| dbp:appmagV | 4.590000 (xsd:double) |
| dbp:bV | −0.08 (en) |
| dbp:class | B9 III-IV (en) |
| dbp:constell | dbr:Hydra_(constellation) |
| dbp:epoch | dbr:J2000.0 |
| dbp:equinox | J2000.0 (en) |
| dbp:gravity | 3.870000 (xsd:double) |
| dbp:luminosity | 182 (xsd:integer) |
| dbp:pError | 0.230000 (xsd:double) |
| dbp:parallax | 10.400000 (xsd:double) |
| dbp:propMoDec | +19.65 (en) |
| dbp:propMoRa | −39.39 (en) |
| dbp:radius | 3.200000 (xsd:double) |
| dbp:rotationalVelocity | 58 (xsd:integer) |
| dbp:uB | −0.27 (en) |
| dbp:wikiPageUsesTemplate | dbt:! dbt:Other_stars_by_Bayer_designation dbt:Reflist dbt:Short_description dbt:Starbox_astrometry dbt:Starbox_begin dbt:Starbox_catalog dbt:Starbox_character dbt:Starbox_detail dbt:Starbox_end dbt:Starbox_observe dbt:Starbox_reference dbt:Stars_of_Hydra dbt:Val dbt:DEC dbt:RA |
| dcterms:subject | dbc:B-type_giants dbc:B-type_subgiants dbc:Bayer_objects dbc:Bright_Star_Catalogue_objects dbc:Durchmusterung_objects dbc:Flamsteed_objects dbc:Henry_Draper_Catalogue_objects dbc:Hipparcos_objects dbc:Hydra_(constellation) |
| gold:hypernym | dbr:Star |
| rdf:type | owl:Thing dbo:Place dbo:Location schema:Place dbo:CelestialBody yago:WikicatB-typeMain-sequenceStars yago:WikicatBayerObjects yago:CelestialBody109239740 yago:NaturalObject100019128 yago:Object100002684 yago:PhysicalEntity100001930 dbo:Star yago:Star109444100 yago:Whole100003553 |
| rdfs:comment | Upsilon2 Hydrae (40 Hydrae) é uma estrela na direção da constelação de Hydra. Possui uma ascensão reta de 10h 05m 07.49s e uma declinação de −13° 03′ 52.8″. Sua magnitude aparente é igual a 4.60. Considerando sua distância de 277 anos-luz em relação à Terra, sua magnitude absoluta é igual a −0.05. Pertence à classe espectral B8V. (pt) Ypsilon2 Hydrae (υ2 Hydrae, förkortat Ypsilon2 Hya, υ2 Hya) är en ensam stjärna belägen i den mellersta delen av stjärnbilden Vattenormen. Den har en skenbar magnitud på 4,59 och är synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 10,4 mas, beräknas den befinna sig på ett avstånd på ca 314 ljusår (ca 96 parsek) från solen. (sv) Upsilon2 Hydrae, Latinised from υ2 Hydrae, is a solitary star in the equatorial constellation of Hydra. Visible to the naked eye, it is photometrically stable with an apparent visual magnitude of 4.59. Based upon an annual parallax shift of 10.40 mas as seen from Earth, it is located about 314 light-years from the Sun. (en) |
| rdfs:label | Upsilon2 Hydrae (pt) Upsilon2 Hydrae (en) Ypsilon2 Hydrae (sv) |
| owl:sameAs | freebase:Upsilon2 Hydrae wikidata:Upsilon2 Hydrae dbpedia-pt:Upsilon2 Hydrae dbpedia-sv:Upsilon2 Hydrae https://global.dbpedia.org/id/4iNwJ yago-res:Upsilon2 Hydrae |
| prov:wasDerivedFrom | wikipedia-en:Upsilon2_Hydrae?oldid=1121994023&ns=0 |
| foaf:isPrimaryTopicOf | wikipedia-en:Upsilon2_Hydrae |
| foaf:name | Upsilon2 Hydrae (en) |
| is dbo:wikiPageRedirects of | dbr:Upsilon2_Hya dbr:Υ2_Hydrae dbr:40_Hydrae |
| is dbo:wikiPageWikiLink of | dbr:Upsilon2_Hya dbr:Table_of_stars_with_Bayer_designations dbr:Hydra_in_Chinese_astronomy dbr:Table_of_stars_with_Flamsteed_designations dbr:Upsilon_Hydrae dbr:List_of_stars_in_Hydra dbr:Υ2_Hydrae dbr:40_Hydrae |
| is foaf:primaryTopic of | wikipedia-en:Upsilon2_Hydrae |