LkCa 15 (original) (raw)
LkCa 15 is a T Tauri star in the Taurus Molecular Cloud. These types of stars are relatively young pre-main-sequence stars that show irregular variations in brightness. It has a mass that is about 97% of the Sun, an effective temperature of 4370 K, and is slightly cooler than the Sun. Its apparent magnitude is 11.91, meaning it is not visible to the naked eye.
| Property | Value |
|---|---|
| dbo:abstract | LkCa 15 is a T Tauri star in the Taurus Molecular Cloud. These types of stars are relatively young pre-main-sequence stars that show irregular variations in brightness. It has a mass that is about 97% of the Sun, an effective temperature of 4370 K, and is slightly cooler than the Sun. Its apparent magnitude is 11.91, meaning it is not visible to the naked eye. (en) LkCa 15 est une étoile de la constellation zodiacale du Taureau. De magnitude apparente 11,91 en lumière visible, elle n'est pas observable à l'œil nu dans le ciel nocturne. Située à une distance de 145 ± 15 parsecs (473 ± 49 années-lumière) du Soleil, c'est une étoile orange (type spectral K5) de la pré-séquence principale. Variable de type Orion, elle est aussi connue sous sa désignation d'étoile variable V1079 Tauri (en abrégé V1079 Tau). (fr) LkCa 15 – młoda gwiazda typu widmowego K położona w gwiazdozbiorze Byka, oddalona o około 470 lat świetlnych od Ziemi, otoczona dyskiem protoplanetarnym. Wiek gwiazdy wynosi ok. 2 miliony lat, a masa – 0,97 masy Słońca. W 2010 astronomowie używający Teleskopu Subaru położonego na Hawajach wokół LkCa 15 po raz pierwszy w historii sfotografowali dysk protoplanetarny z wyraźnymi śladami zrobionymi w nim przez tworzące się planety. W 2011 ogłoszono, że wokół gwiazdy krąży duża młoda planeta (lub protoplaneta) o masie ok. 6 mas Jowisza – LkCa 15 b. (pl) LkCa 15是一顆位於的恆金牛T星。該恆星是年輕的主序前星，並且亮度變化不規則。 (zh) |
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| dbp:ageMyr | 2 (xsd:integer) |
| dbp:apoapsis | 3 (xsd:integer) 40 (xsd:integer) 160 (xsd:integer) |
| dbp:appmagV | +11.91 (en) |
| dbp:caption | LkCa 15 protoplanetary disk (en) |
| dbp:class | K5V (en) |
| dbp:constell | dbr:Taurus_(constellation) |
| dbp:disk | Protoplanetary disk component 1 (en) Protoplanetary disk component 2 (en) Protoplanetary disk component 3 (en) |
| dbp:epoch | dbr:J2000.0 |
| dbp:exoplanet | dbr:LkCa_15_b |
| dbp:inclination | 50 (xsd:integer) 51.500000 (xsd:double) |
| dbp:luminosity | 1.220000 (xsd:double) |
| dbp:mass | 0.970000 (xsd:double) 6 (xsd:integer) |
| dbp:name | LkCa 15 (en) |
| dbp:pError | 0.026400 (xsd:double) |
| dbp:parallax | 6.361900 (xsd:double) |
| dbp:periapsis | 0.120000 (xsd:double) 20 (xsd:integer) 55 (xsd:integer) |
| dbp:period | 40000 (xsd:integer) |
| dbp:periodUnit | day (en) |
| dbp:propMoDec | -17.527000 (xsd:double) |
| dbp:propMoRa | 10.572000 (xsd:double) |
| dbp:radius | 1.200000 (xsd:double) |
| dbp:semimajor | 15.700000 (xsd:double) |
| dbp:temperature | 4730 (xsd:integer) |
| dbp:variable | dbr:T_Tauri_star |
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| dct:subject | dbc:Circumstellar_disks dbc:Hypothetical_planetary_systems dbc:IRAS_catalogue_objects dbc:K-type_main-sequence_stars dbc:Objects_with_variable_star_designations dbc:Taurus_(constellation) dbc:2MASS_objects dbc:Pre-main-sequence_stars dbc:T_Tauri_stars |
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| rdfs:comment | LkCa 15 is a T Tauri star in the Taurus Molecular Cloud. These types of stars are relatively young pre-main-sequence stars that show irregular variations in brightness. It has a mass that is about 97% of the Sun, an effective temperature of 4370 K, and is slightly cooler than the Sun. Its apparent magnitude is 11.91, meaning it is not visible to the naked eye. (en) LkCa 15 est une étoile de la constellation zodiacale du Taureau. De magnitude apparente 11,91 en lumière visible, elle n'est pas observable à l'œil nu dans le ciel nocturne. Située à une distance de 145 ± 15 parsecs (473 ± 49 années-lumière) du Soleil, c'est une étoile orange (type spectral K5) de la pré-séquence principale. Variable de type Orion, elle est aussi connue sous sa désignation d'étoile variable V1079 Tauri (en abrégé V1079 Tau). (fr) LkCa 15 – młoda gwiazda typu widmowego K położona w gwiazdozbiorze Byka, oddalona o około 470 lat świetlnych od Ziemi, otoczona dyskiem protoplanetarnym. Wiek gwiazdy wynosi ok. 2 miliony lat, a masa – 0,97 masy Słońca. W 2010 astronomowie używający Teleskopu Subaru położonego na Hawajach wokół LkCa 15 po raz pierwszy w historii sfotografowali dysk protoplanetarny z wyraźnymi śladami zrobionymi w nim przez tworzące się planety. W 2011 ogłoszono, że wokół gwiazdy krąży duża młoda planeta (lub protoplaneta) o masie ok. 6 mas Jowisza – LkCa 15 b. (pl) LkCa 15是一顆位於的恆金牛T星。該恆星是年輕的主序前星，並且亮度變化不規則。 (zh) |
| rdfs:label | LkCa 15 (fr) LkCa 15 (en) LkCa 15 (pl) LkCa 15 (zh) |
| owl:sameAs | yago-res:LkCa 15 wikidata:LkCa 15 dbpedia-fi:LkCa 15 dbpedia-fr:LkCa 15 dbpedia-pl:LkCa 15 dbpedia-zh:LkCa 15 https://global.dbpedia.org/id/ELXR |
| prov:wasDerivedFrom | wikipedia-en:LkCa_15?oldid=1112902395&ns=0 |
| foaf:depiction | wiki-commons:Special:FilePath/LkCa_15_disk_protoplanetare_Scheibe_cropped.jpg wiki-commons:Special:FilePath/V1079TauLightCurve.png |
| foaf:isPrimaryTopicOf | wikipedia-en:LkCa_15 |
| foaf:name | LkCa 15 (en) |
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