Pi Eridani (original) (raw)
Pi Eridani (26 Eridanus) é uma estrela na direção da constelação de Eridanus. Possui uma ascensão reta de 03h 46m 08.50s e uma declinação de −12° 06′ 06.2″. Sua magnitude aparente é igual a 4.43. Considerando sua distância de 497 anos-luz em relação à Terra, sua magnitude absoluta é igual a −1.49. Pertence à classe espectral M1III.
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| dbo:abstract | Pi Eridani, Latinized from π Eridani, is a star in the constellation Eridanus. It has an apparent visual magnitude of 4.40, which is bright enough to be seen on a dark, clear night. Based upon parallax measurements, it is located roughly 480 light years from the Sun. This is an evolved red giant star with a stellar classification of M1 III, and is currently on the asymptotic giant branch. It is a slow irregular variable type LB that can increase in magnitude up to 4.38. The measured angular diameter of this star is 4.8±0.5 mas. At the estimated distance of Pi Eridani, this yields a physical size of about 77 times the radius of the Sun. It shines with 1,123 times the luminosity of the Sun from an outer atmosphere at an effective temperature of 3,841 K. (en) Pi Eridani (26 Eridanus) é uma estrela na direção da constelação de Eridanus. Possui uma ascensão reta de 03h 46m 08.50s e uma declinação de −12° 06′ 06.2″. Sua magnitude aparente é igual a 4.43. Considerando sua distância de 497 anos-luz em relação à Terra, sua magnitude absoluta é igual a −1.49. Pertence à classe espectral M1III. (pt) Pi Eridani (π Eridani, förkortat Pi Eri, π Eri) som är stjärnans Bayerbeteckning, är en ensam stjärna belägen i den mellersta delen av stjärnbilden Eridanus. Den har en skenbar genomsnittlig skenbar magnitud på 4,40, är svagt synlig för blotta ögat där ljusföroreningar ej förekommer och är en långsam oregelbunden variabel av typ LB, som kan öka i magnitud upp till 4,38. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 6,8 mas, beräknas den befinna sig på ett avstånd på ca 480 ljusår (ca 40 parsek) från solen. (sv) 波江座π，又名BD-12 707，HD 23614、SAO 149158、HR 1162，是波江座的一颗恒星，视星等为4.42，位于銀經201.55，銀緯-46.47，其B1900.0坐标为赤經3h 41m 24.8s，赤緯-12° -46.47′ 55″。 (zh) |
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| dbp:absmagV | −1.40 (en) |
| dbp:appmagV | 4.400000 (xsd:double) (en) |
| dbp:bV | +1.61 (en) |
| dbp:class | M1 III (en) |
| dbp:constell | dbr:Eridanus_(constellation) |
| dbp:epoch | J2000.0 (en) |
| dbp:luminosity | 1123 (xsd:integer) |
| dbp:pError | 0.530000 (xsd:double) |
| dbp:parallax | 6.780000 (xsd:double) |
| dbp:propMoDec | +59.28 (en) |
| dbp:propMoRa | +55.98 (en) |
| dbp:radius | 77 (xsd:integer) |
| dbp:temperature | 3841 (xsd:integer) |
| dbp:type | asymptotic giant branch (en) |
| dbp:uB | +1.96 (en) |
| dbp:variable | dbr:Slow_irregular_variable |
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| dct:subject | dbc:Asymptotic-giant-branch_stars dbc:Bayer_objects dbc:Bright_Star_Catalogue_objects dbc:Durchmusterung_objects dbc:Eridanus_(constellation) dbc:Flamsteed_objects dbc:Henry_Draper_Catalogue_objects dbc:Hipparcos_objects dbc:M-type_giants dbc:Slow_irregular_variables |
| gold:hypernym | dbr:Star |
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| rdfs:comment | Pi Eridani (26 Eridanus) é uma estrela na direção da constelação de Eridanus. Possui uma ascensão reta de 03h 46m 08.50s e uma declinação de −12° 06′ 06.2″. Sua magnitude aparente é igual a 4.43. Considerando sua distância de 497 anos-luz em relação à Terra, sua magnitude absoluta é igual a −1.49. Pertence à classe espectral M1III. (pt) Pi Eridani (π Eridani, förkortat Pi Eri, π Eri) som är stjärnans Bayerbeteckning, är en ensam stjärna belägen i den mellersta delen av stjärnbilden Eridanus. Den har en skenbar genomsnittlig skenbar magnitud på 4,40, är svagt synlig för blotta ögat där ljusföroreningar ej förekommer och är en långsam oregelbunden variabel av typ LB, som kan öka i magnitud upp till 4,38. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 6,8 mas, beräknas den befinna sig på ett avstånd på ca 480 ljusår (ca 40 parsek) från solen. (sv) 波江座π，又名BD-12 707，HD 23614、SAO 149158、HR 1162，是波江座的一颗恒星，视星等为4.42，位于銀經201.55，銀緯-46.47，其B1900.0坐标为赤經3h 41m 24.8s，赤緯-12° -46.47′ 55″。 (zh) Pi Eridani, Latinized from π Eridani, is a star in the constellation Eridanus. It has an apparent visual magnitude of 4.40, which is bright enough to be seen on a dark, clear night. Based upon parallax measurements, it is located roughly 480 light years from the Sun. (en) |
| rdfs:label | Pi Eridani (en) Pi Eridani (pt) Pi Eridani (sv) 天苑二 (zh) |
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| prov:wasDerivedFrom | wikipedia-en:Pi_Eridani?oldid=1121447835&ns=0 |
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| foaf:name | π Eridani (en) |
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