Pi Leonis (original) (raw)
Pi Leonis (29 Leonis) é uma estrela na direção da constelação de Leo. Possui uma ascensão reta de 10h 00m 12.82s e uma declinação de +08° 02′ 39.4″. Sua magnitude aparente é igual a 4.68. Considerando sua distância de 525 anos-luz em relação à Terra, sua magnitude absoluta é igual a −1.35. Pertence à classe espectral M2III.
| Property | Value |
|---|---|
| dbo:abstract | Pi Leonis, Latinised from π Leonis, is a single star in the zodiac constellation Leo. It is a red-hued star that is visible to the naked eye with an apparent visual magnitude of 4.70. This object is located at a distance of some 410 light-years from the Sun based on parallax, and is drifting further away with a radial velocity of +22 km/s. Because the star lies near the ecliptic it is subject to occultations by the Moon. This is an evolved, red giant star with a stellar classification of M2 III. With the supply of hydrogen at its core exhausted, it has expanded to 70 times the Sun's radius. The star shines with 1,077 times the luminosity of the Sun from an expanded outer atmosphere that has an effective temperature of 3,757 K. According to the General Catalogue of Variable Stars, it is a suspected variable star with a maximum magnitude of 4.67. The age of Pi Leonis is estimated at 550 million years. (en) Pi Leonis (29 Leonis) é uma estrela na direção da constelação de Leo. Possui uma ascensão reta de 10h 00m 12.82s e uma declinação de +08° 02′ 39.4″. Sua magnitude aparente é igual a 4.68. Considerando sua distância de 525 anos-luz em relação à Terra, sua magnitude absoluta é igual a −1.35. Pertence à classe espectral M2III. (pt) Pi Leonis (π Leonis, förkortat Pi Leo, π Leo) är en ensam stjärna belägen i den sydvästra delen av stjärnbilden Lejonet. Den har en skenbar magnitud på 4,70, är synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 8,0 mas, beräknas den befinna sig på ett avstånd på ca 410 ljusår (ca 125 parsek) från solen. Eftersom stjärnan ligger nära ekliptikan är den föremål för ockultationer från månen. (sv) 獅子座π，又名BD+08 2301，HD 86663、SAO 118044、HR 3950，是獅子座的一颗恒星，视星等为4.7，位于銀經230.01，銀緯45.26，其B1900.0坐标为赤經9h 54m 55.7s，赤緯+8° 45.26′ 27″。 (zh) |
| dbo:wikiPageID | 37255397 (xsd:integer) |
| dbo:wikiPageLength | 8206 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID | 1124776435 (xsd:integer) |
| dbo:wikiPageWikiLink | dbr:Stellar_classification dbc:Bayer_objects dbc:Bright_Star_Catalogue_objects dbc:Durchmusterung_objects dbc:Flamsteed_objects dbc:Henry_Draper_Catalogue_objects dbc:Hipparcos_objects dbc:M-type_giants dbc:Suspected_variables dbr:Constellation dbr:General_Catalogue_of_Variable_Stars dbr:Occultation dbr:Effective_temperature dbr:Moon dbr:Leo_(constellation) dbr:Light-year dbr:Star dbr:Stellar_evolution dbr:Stellar_atmosphere dbr:Stellar_parallax dbr:Latinisation_of_names dbc:Leo_(constellation) dbr:Ecliptic dbr:Stellar_core dbr:Red_giant dbr:International_Celestial_Reference_System dbr:J2000.0 dbr:Sun dbr:Zodiac dbr:Apparent_visual_magnitude dbr:Radial_velocity dbr:Variable_star dbr:Sun's_radius dbr:Luminosity_of_the_Sun |
| dbp:absmagV | −0.79 (en) |
| dbp:ageMyr | 550 (xsd:integer) |
| dbp:appmagV | 4.700000 (xsd:double) |
| dbp:bV | +1.60 (en) |
| dbp:class | M2 III (en) |
| dbp:constell | dbr:Leo_(constellation) |
| dbp:epoch | J2000.0 (en) |
| dbp:gravity | 1.028000 (xsd:double) |
| dbp:mass | 1.640000 (xsd:double) |
| dbp:metalFe | +0.447 (en) |
| dbp:pError | 0.290000 (xsd:double) |
| dbp:parallax | 8.030000 (xsd:double) |
| dbp:propMoDec | −22.15 (en) |
| dbp:propMoRa | −31.41 (en) |
| dbp:radius | 84.700000 (xsd:double) |
| dbp:temperature | 3757 (xsd:integer) |
| dbp:uB | +1.88 (en) |
| dbp:wikiPageUsesTemplate | 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:Val dbt:DEC dbt:Odlist dbt:RA dbt:Stars_of_Leo |
| dcterms:subject | dbc:Bayer_objects dbc:Bright_Star_Catalogue_objects dbc:Durchmusterung_objects dbc:Flamsteed_objects dbc:Henry_Draper_Catalogue_objects dbc:Hipparcos_objects dbc:M-type_giants dbc:Suspected_variables dbc:Leo_(constellation) |
| gold:hypernym | dbr:Star |
| rdf:type | owl:Thing dbo:Place dbo:Location schema:Place dbo:CelestialBody yago:WikicatBayerObjects yago:WikicatM-typeGiants yago:Animal100015388 yago:Giant101323781 yago:LivingThing100004258 yago:Object100002684 yago:Organism100004475 yago:PhysicalEntity100001930 dbo:Star yago:Whole100003553 |
| rdfs:comment | Pi Leonis (29 Leonis) é uma estrela na direção da constelação de Leo. Possui uma ascensão reta de 10h 00m 12.82s e uma declinação de +08° 02′ 39.4″. Sua magnitude aparente é igual a 4.68. Considerando sua distância de 525 anos-luz em relação à Terra, sua magnitude absoluta é igual a −1.35. Pertence à classe espectral M2III. (pt) Pi Leonis (π Leonis, förkortat Pi Leo, π Leo) är en ensam stjärna belägen i den sydvästra delen av stjärnbilden Lejonet. Den har en skenbar magnitud på 4,70, är synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 8,0 mas, beräknas den befinna sig på ett avstånd på ca 410 ljusår (ca 125 parsek) från solen. Eftersom stjärnan ligger nära ekliptikan är den föremål för ockultationer från månen. (sv) 獅子座π，又名BD+08 2301，HD 86663、SAO 118044、HR 3950，是獅子座的一颗恒星，视星等为4.7，位于銀經230.01，銀緯45.26，其B1900.0坐标为赤經9h 54m 55.7s，赤緯+8° 45.26′ 27″。 (zh) Pi Leonis, Latinised from π Leonis, is a single star in the zodiac constellation Leo. It is a red-hued star that is visible to the naked eye with an apparent visual magnitude of 4.70. This object is located at a distance of some 410 light-years from the Sun based on parallax, and is drifting further away with a radial velocity of +22 km/s. Because the star lies near the ecliptic it is subject to occultations by the Moon. (en) |
| rdfs:label | Pi Leonis (en) Pi Leonis (pt) Pi Leonis (sv) 獅子座π (zh) |
| owl:sameAs | freebase:Pi Leonis yago-res:Pi Leonis wikidata:Pi Leonis dbpedia-pt:Pi Leonis dbpedia-sv:Pi Leonis dbpedia-zh:Pi Leonis https://global.dbpedia.org/id/4iMCb |
| prov:wasDerivedFrom | wikipedia-en:Pi_Leonis?oldid=1124776435&ns=0 |
| foaf:isPrimaryTopicOf | wikipedia-en:Pi_Leonis |
| foaf:name | π Leonis (en) |
| is dbo:wikiPageRedirects of | dbr:Pi_Leo dbr:Π_Leonis dbr:29_Leonis |
| is dbo:wikiPageWikiLink of | dbr:Leo_in_Chinese_astronomy dbr:Table_of_stars_with_Bayer_designations dbr:Pi_Leo dbr:Table_of_stars_with_Flamsteed_designations dbr:List_of_stars_in_Leo dbr:P_Leonis dbr:Π_Leonis dbr:29_Leonis |
| is foaf:primaryTopic of | wikipedia-en:Pi_Leonis |