| Discovery | |
|---|---|
| Discovery date | 2022 |
| Radial velocity | |
| Designations | |
| Gliese 1002 b | |
| Orbital characteristics | |
| 0.0457 AU | |
| Eccentricity | 0 |
| 10.3 days | |
| Star | GJ 1002 |
| Physical characteristics | |
Mean radius | 1.03 R🜨 |
| Mass | 1.08 ME |
GJ 1002 b (also designated as Gliese 1002 b) is a potentially habitable exoplanet (potentially Earth's closest habitable planet [1]) located 16 light years away, in the constellation of Cetus. [2] The planet, which has an Earth Similarity Index of 86%, is in the habitable zone of its parent star. [3] GJ 1002 b has a minimum mass of 1.08 Earth masses and is estimated by the Planetary Habitability Laboratory to have 1.03 times the radius of Earth and a surface temperature of 261 Kelvin. [4]
Detection
GJ 1002 b was detected in 2022 via the radial velocity method and the planets mass was also detected via the radial velocity method.
Host star
The host star, GJ 1002, is a quiet M5.5V type red dwarf not believed to release flares that could harm the atmosphere. [5] The planet orbits its host star at a distance of 0.0457 AU ( Astronomical units), with a 10.3 day orbital period and a 0.0 eccentricity. [6] [7]
References
- ^ "PHL @ UPR Arecibo - The Habitable Exoplanets Catalog". phl.upr.edu. Retrieved 2023-01-08.
- ^ Dreizler, S.; V., S.; Jeffers; Rodríguez, E.; Zechmeister, M.; Barnes, J. R.; Haswell, C. A.; Coleman, G.; Lalitha, S.; Soto, D. Hidalgo; Strachan, J. B. P.; Hambsch, F.-J.; López-González, M. J.; Morales, N.; López, C. Rodríguez (2020-03-21). "Red Dots: A temperate 1.5 Earth-mass planet in a compact multi-terrestrial planet system around GJ1061". Monthly Notices of the Royal Astronomical Society. 493 (1): 536–550. arXiv: 1908.04717. doi: 10.1093/mnras/staa248. ISSN 0035-8711.
- ^ "EarthSky | 2 possibly Earth-like worlds, just 16 light-years away". earthsky.org. 2022-12-29. Retrieved 2023-01-08.
- ^ "PHL @ UPR Arecibo - Earth Similarity Index (ESI)". phl.upr.edu. Retrieved 2023-01-08.
- ^ Nowakowski, Tomasz; Phys.org. "Two Earth-mass exoplanets orbiting nearby star discovered". phys.org. Retrieved 2023-01-08.
- ^ "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2023-08-28.
- ^ "The Extrasolar Planet Encyclopaedia — GJ 1002 b". Extrasolar Planets Encyclopaedia. Retrieved 2023-08-28.
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