File:Artist’s_impression_of_Proxima_Centauri_b_shown_hypothetically_as_an_arid_rocky_super-earth.jpg · Wikimedia Commons · See Wikimedia Commons
Proxima Centauri b
Sign in to saveAlso known as Alpha Centauri Cb, Proxima b, NAME V645 Cen b, NAME Proxima Centauri b, TIC 388857263b
planète extrasolaire
Proxima Centauri b is an Earth-sized planet that orbits Proxima Centauri, the star closest to our Sun at about 4.2 light-years away. It matters because it's one of the nearest potentially habitable worlds we've discovered, making it a prime target for future study to understand whether life could exist beyond our solar system.
AI-generated from the Wikipedia summary — may contain errors.
Astronomical data · SIMBAD
- Object type
- Pl
- Distance
- 4 light-years
- Coordinates
- RA 217.4289° · Dec -62.6795°
via SIMBAD · CDS Strasbourg
Wikidata facts
- Constellation
- Centaurus
- Parent body
- Proxima Centauri
- Mass
- 0.00337
- Orbital period
- 11.1881
- Image
- Artist’s impression of Proxima Centauri b shown hypothetically as an arid rocky super-earth.jpg
Show 15 more facts
- discovery method
- Doppler spectroscopy
- semi-major axis of an orbit
- 0.04856
- time of discovery or invention
- 2016-08-00
- Commons category
- Proxima Centauri b
- right ascension
- 217.42893801442040
- declination
- -62.67949189414083
- epoch
- J2000.0
- argument of periapsis
- 3.3
- catalog code
- TIC 388857263b
- right ascension component of proper motion
- -3781.306
- M sin i
- 0.00337
- orbital eccentricity
- 0
- declination component of proper motion
- 769.766
- parallax
- 768.5004
- time of periapsis
- 245813.5
Sources (2)
via Wikidata · CC0
Article · Français
Proxima Centauri b ou simplement Proxima b est une exoplanète probablement tellurique, d'une masse minimale de 1,3 masse terrestre, en orbite dans la zone habitable de l'étoile naine rouge Proxima Centauri, qui est la plus proche étoile du soleil et qui fait partie d'un système stellaire triple. Elle est approximativement localisée à 4,2 années-lumière (1,3 parsecs, 40 000 milliards de km, ou 265 000 UA) de la Terre dans la constellation du Centaure, faisant d'elle l'exoplanète la plus proche du système solaire connue à ce jour.
Abstract from DBpedia / Wikipedia · CC BY-SA
Gallery (11)
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