Gliese 1061 c

Gliese 1061 c (also known as GJ 1061 c) is an exoplanet orbiting the red dwarf Gliese 1061, 12 light years away from Earth.[2]

Gliese 1061 c
Discovery[1]
Discovered byDreizler et al. 2019[1]
Discovery date13 August 2019
Doppler spectroscopy
Orbital characteristics
0.035 ± 0.001 au
Eccentricity< 0.29
6.689 ± 0.005 d
88+95
−85°
JD 2458300.2+1.9
−1.5
Semi-amplitude2.48+0.28
−0.29 km/s
StarGliese 1061
Physical characteristics
Mass>1.75 ± 0.23

    As of March 2020, it is considered the fifth most potentially habitable exoplanet, with an Earth Similarity Index of 0.86.[3]

    Announcement

    The exoplanet was announced on August 13, 2019 by members of the Red Dots project.

    Characteristics

    Gliese 1061 c is 75% more massive than the Earth, it receives 35% more stellar flux and has an equilibrium temperature of 275 K (2 °C; 35 °F).[4]

    Gliese 1061 c orbits its star every 6.7 days, so it is probably in synchronous rotation with its star.

    Habitability

    Gliese 1061 is a non-variable star that does not produce significant flares. Consequently, there is a greater probability that the exoplanet Gliese 1061 c still conserves its atmosphere, if it has one.[5]

    It is an exoplanet warmer than Earth, with an equilibrium temperature of almost 20 K greater, so the average temperature on the surface could be around 34 °C (307 K; 93 °F), provided the atmosphere is of similar composition to the Earth's.

    References
    1. Anglada-Escudé, G.; Reiners, A.; Pallé, E.; Ribas, I.; Berdiñas, Z. M.; Rodríguez López, C.; Morales, N.; López-González, M. J.; Hambsch, F-J; Strachan, J B P.; Hidalgo Soto, D.; Lalitha, S.; Coleman, G A L.; Haswell, C. A.; Barnes, J. R.; Zechmeister, M.; Rodríguez, E.; Jeffers, S. V.; Dreizler, S.; Anglada-Escudé, G. (2020). "Red Dots: A temperate 1.5 Earth-mass planet candidate in a compact multiterrestrial planet system around GJ 1061". Monthly Notices of the Royal Astronomical Society. 493 (1): 536–550. arXiv:1908.04717. Bibcode:2020MNRAS.493..536D. doi:10.1093/mnras/staa248. S2CID 199551874.
    2. "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2020-03-31.
    3. "The Habitable Exoplanets Catalog - Planetary Habitability Laboratory @ UPR Arecibo". phl.upr.edu. Retrieved 2020-03-31.
    4. "Trio of Super-Earths Found Orbiting Red Dwarf Gliese 1061 | Astronomy | Sci-News.com". Breaking Science News | Sci-News.com. Retrieved 2020-03-31.
    5. Starr, Michelle. "Three Rocky Exoplanets Have Been Found Orbiting a Star Just 12 Light-Years Away". ScienceAlert. Retrieved 2020-03-31.
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