Ethnies proches impliquées : Différence entre versions
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'''HD 222237 ''' est situé 37 années-lumière du soleil. K3+V,environ 70 % de masse solaire. Il y a au moins une exoplanète dans ce système. | '''HD 222237 ''' est situé 37 années-lumière du soleil. K3+V,environ 70 % de masse solaire. Il y a au moins une exoplanète dans ce système. | ||
| − | ==HD 211415 - | + | ==HD 211415 - Partiellement dominé== |
is a double star in the constellation Grus. With an apparent visual magnitude of 5.33, it is visible to the naked eye. The annual parallax shift is 72.54 mas, which yields a distance estimate of 45 light years. It has a relatively high proper motion, traversing the celestial sphere at the rate of 93.4 mas per year,[12] and is moving closer to the Sun with a radial velocity of −13 km/s.[5] | is a double star in the constellation Grus. With an apparent visual magnitude of 5.33, it is visible to the naked eye. The annual parallax shift is 72.54 mas, which yields a distance estimate of 45 light years. It has a relatively high proper motion, traversing the celestial sphere at the rate of 93.4 mas per year,[12] and is moving closer to the Sun with a radial velocity of −13 km/s.[5] | ||
Version du 30 décembre 2024 à 14:57
Page en cours d'écriture
Image de profil de 312_oay mise à jour le 28 décembre 2024 à l'aide d'une carte intitulée "Mondes habités les plus proches (et influences externes) . Il s'agira très certainement de la dernière intervention twitter de ce compte."
Voir aussi: E.T. selon 312 oay , Accord de 1966 , Ethnies extraterrestres
Remerciements à https://x.com/i/status/1873113997974880740 (@Lyes)
Sommaire
Tableau de M.R. au 22/11/23
Systèmes planétaires citées dans les documents U
Le 19/12/2024, Manuel écrit sur tweeter (X): " Mon pari serait:
- HD 42807 système original des Orion (https://www.universeguide.com/star/29525/v1357orionis ) - 58 al
- HD 38858 système des Tauri (https://www.universeguide.com/star/27435/hd38858 ) - 49 al
Groupe VERT (les Gris)
HD 222237 - Totalement dominé
HD 222237 est situé 37 années-lumière du soleil. K3+V,environ 70 % de masse solaire. Il y a au moins une exoplanète dans ce système.
HD 211415 - Partiellement dominé
is a double star in the constellation Grus. With an apparent visual magnitude of 5.33, it is visible to the naked eye. The annual parallax shift is 72.54 mas, which yields a distance estimate of 45 light years. It has a relatively high proper motion, traversing the celestial sphere at the rate of 93.4 mas per year,[12] and is moving closer to the Sun with a radial velocity of −13 km/s.[5]
HD 200525 - Partiellement dominé
HD 200525 is a white to yellow subgiant star in the constellation of Pavo. It can be seen in the southern hemisphere night sky. HD 200525 distance from Earth is 64.47 light years away.
HD 2151 - Totalement dominé
Beta Hydri (β Hyi, β Hydri) is a star in the southern circumpolar constellation of Hydrus. (Note that Hydrus is not the same as Hydra.) With an apparent visual magnitude of 2.8,[2] this is the brightest star in the constellation. Based upon parallax measurements the distance to this star is about 24.33 light-years (7.46 parsecs). This star has about 113% of the mass of the Sun and 184% of the Sun's radius, with more than three times the Sun's luminosity
Groupe JAUNE (les Orions/Tauris)
HD 50281
is a star located in the equatorial constellation of Monoceros. It has an apparent visual magnitude of 6.58 and is approximately 28.5 light years away from the Sun. The star is an orange hue and has a stellar classification of K3.V, indicating it is a K-type main sequence star. It is nearly two billion years old and has a mass of about 79% of the Sun’s mass, with a radius of about 73% of the Sun’s radius. The star emits about 22.5% of the luminosity of the Sun and has an effective temperature of around 4,712 K.
