HD 240237
http://dbpedia.org/resource/HD_240237 an entity of type: Thing
HD 240237 es una gigante roja a aproximadamente 5000 años luz de distancia en la constelación de Casiopea. La estrella tiene un planeta extrasolar que orbita un poco dentro de la zona habitable de la estrella con una temperatura de aproximadamente 510 °C, comparable a Venus, planeta de nuestro propio sistema solar. Fue detectado en 2010 por el método de la velocidad radial.
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HD 240237 — звезда, которая находится в созвездии Кассиопеи на расстоянии около 4892 световых лет от нас. Вокруг звезды обращается, как минимум, одна планета.
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HD 240237 is a star in the northern constellation of Cassiopeia. It is an orange star that can be viewed with binoculars or a small telescope, but is too faint to be seen with the naked eye at an apparent visual magnitude of 8.19. This object is located at a distance of approximately 3,100 light years away from the Sun based on parallax, but is drifting closer with a radial velocity of −25 km/s.
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HD 240237
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HD 240237
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HD 240237
xsd:integer
42978048
xsd:integer
1096738993
xsd:integer
270
xsd:double
8.19
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K2III
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J2000
xsd:double
5.3
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or 0.61
xsd:double
0.0364
xsd:double
1.0437
rdf:langString
−4.290
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−0.203
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≥
xsd:double
1.9
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HD 240237 es una gigante roja a aproximadamente 5000 años luz de distancia en la constelación de Casiopea. La estrella tiene un planeta extrasolar que orbita un poco dentro de la zona habitable de la estrella con una temperatura de aproximadamente 510 °C, comparable a Venus, planeta de nuestro propio sistema solar. Fue detectado en 2010 por el método de la velocidad radial.
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HD 240237 is a star in the northern constellation of Cassiopeia. It is an orange star that can be viewed with binoculars or a small telescope, but is too faint to be seen with the naked eye at an apparent visual magnitude of 8.19. This object is located at a distance of approximately 3,100 light years away from the Sun based on parallax, but is drifting closer with a radial velocity of −25 km/s. This is an aging giant star with a stellar classification of K2III; a star that has exhausted the supply of hydrogen at its core and expanded to 78 times the radius of the Sun. S. Gettel and associates (2011) estimate the star is around 270 million years old with 1.7 times the mass of the Sun. However, S. G. Sousa and associates found a much lower mass of 0.61 times the mass of the Sun. It is radiating 1,244 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 3,878 K.
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HD 240237 — звезда, которая находится в созвездии Кассиопеи на расстоянии около 4892 световых лет от нас. Вокруг звезды обращается, как минимум, одна планета.
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6209