List of potentially habitable exoplanets

This is a list of potentially habitable exoplanets. The list is mostly based on estimates of habitability by the Habitable Worlds Catalog (HWC), and data from the NASA Exoplanet Archive. The HWC is maintained by the Planetary Habitability Laboratory at the University of Puerto Rico at Arecibo.^[1] There is also a speculative list being developed of superhabitable planets.

Surface planetary habitability is thought to require an orbit at the right distance from the host star for liquid surface water to be present, in addition to various geophysical and geodynamical aspects, atmospheric density, radiation type and intensity, and the host star's plasma environment.^[2]

List

This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources.

This is a list of exoplanets within the circumstellar habitable zone that are under 10 Earth masses and smaller than 2.5 Earth radii, and thus have a chance of being rocky.^[3][1] Note that inclusion on this list does not guarantee habitability, and in particular the larger planets are unlikely to have a rocky composition.^[4] Earth is included for comparison.

Note that mass and radius values prefixed with "~" have not been measured, but are estimated from a mass-radius relationship.

Object	Star	Star type	Mass (M⊕)	Radius (R⊕)	Density (g/cm^3)	Flux (F⊕)	Teq (K)	Period (days)	Distance (ly)	Refs/Notes
Earth	Sun	G2V	1.00	1.00	5.514	1.00	255	365.25	0	Reported for reference. Only planet known to support life.[3]
Venus	Sun	G2V	0.815	0.9499	5.243	1.911	244.261	224.7	0	Reported for reference. [5]
Gliese 12 b	Gliese 12	M4V	0.88+0.39 −0.26	1.03±0.11	4.44	1.6±0.2	315	12.76144±0.00006	40	[6]
Gliese 163 c	Gliese 163	M3V	≥6.80	—	—	1.25	277	25.6	49	[1]
Gliese 180 c	Gliese 180	M2V	≥6.40	—	—	0.78	239	24.3	39	Not confirmed[1][7]
Gliese 180 d	Gliese 180	M2V	≥7.56	—	—	0.26		106.3	39	[1]
Gliese 229 Ac	Gliese 229 A	M1V	≥8.57	—	—	0.44	216	121.9	18.8
Gliese 357 d	Gliese 357	M2V	≥6.10	—	—	0.38	200	55.7	31
Gliese 433 d	Gliese 433	M2V	≥5.22	—	—	1.06		36.1	29.6	[1]
Gliese 514 b	Gliese 514	M1V	≥5.20	—	—	0.28 (0.114−0.79)	202	140.4	25	Highly eccentric[8]
Gliese 625 b	Gliese 625	M2V	≥2.82	—	—			14.628	21.1	Only in HZ if very optimistic models used[9][10][11]
Gliese 667 Cc	Gliese 667 C	M1V	≥3.81	~1.54	—	0.88	277	28.1	23.62	[12][1]
Gliese 1002 b	Gliese 1002	M5V	≥1.08	~1.03	—	0.67	231	10.3	15.8	[13]
GJ 1002 c	GJ 1002	M5V	≥1.36	1.1	—	0.26	182	21.2	15.8	[13][14]
GJ 1061 c	GJ 1061	M5V	≥1.74	~1.18	—	1.45	275	6.7	12
GJ 1061 d	GJ 1061	M5V	≥1.64	~1.16	—	0.69	218	13.0	12
GJ 3293 d	GJ 3293	M2V	≥7.60	—	—	0.59	223	48.1	66	[1]
HD 40307 g	HD 40307	K2V	≥7.09	—	—	0.67	226	197.8	42	Not confirmed[1][15]
HD 216520 c	HD 216520	K0V	≥9.44	—	—	1.28		154.4	64	[1]
HIP 38594 b	HIP 38594	M0V	≥8.10	—	—	1.34		60.7	58	[1]
K2-9b	K2-9	M2V	—	2.25	—	1.45	279	18.4	270	[1][16]
K2-72e	K2-72	M?V	~2.21	1.29	—	1.30	261	24.2	217	[17]
K2-332b	K2-332	M?V	—	2.20	—	1.17		17.7	402	[1]
K2-288Bb	K2-288 B	M3V	4.27	1.91	—	0.44	207	31.4	214	[18]
Kepler-22b	Kepler-22	G5V	—	2.38	—	1.10	261	289.9	635	[1][19]
Kepler-62e	Kepler-62	K2V	4.5+14.2 −2.6	1.61	—	1.15	264	122.4	981	[1][20]
Kepler-62f	Kepler-62	K2V	2.8+0.4 −0.4	1.41	—	0.41	204	267.3	981	[1][21]
Kepler-155c	Kepler-155	M0V	—	2.24	—	1.05		52.7	957	[1]
Kepler-174d	Kepler-174	K3V	—	2.19	—	0.59	206	247.4	1254	[1]
Kepler-186f	Kepler-186	M1V	1.44+2.33 −1.12	1.17	—	0.29	188	129.9	579	[1]
Kepler-283c	Kepler-283	K5V	—	1.82	—	0.89	248	92.7	1526	[1]
Kepler-296e	Kepler-296	K7V	2.96	1.52	—	1.41	276	34.1	737	[1][22][23]
Kepler-296f	Kepler-296	K7V	—	1.80	—	0.44	225	63.3	737	[1][24]
Kepler-442b	Kepler-442	K5V	2.36+5.9 −1.3	1.35	—	0.70	233	112.3	1193	[1]
Kepler-440b	Kepler-440	K6V	—	1.91	—	1.44	273	101.1	981	[1]
Kepler-443b	Kepler-443	K3V	—	2.35	—	0.89	247	177.7	2615	[1]
Kepler-452b	Kepler-452	G2V	~5	1.63	—	1.11	261	384.8	1799	Not confirmed[1][25][26][27][28]
Kepler-705b	Kepler-705	M?V	—	2.11	—	0.77	243	56.1	903
Kepler-1229b	Kepler-1229	M?V	2.540	1.40	—	0.32	213	86.8	865	[1]
Kepler-1410b	Kepler-1410	K?V	—	1.78	—	1.07	274	60.9	1196
Kepler-1540b	Kepler-1540	K?V	—	2.49	—	0.78	250	125.4	799
Kepler-1544 b	Kepler-1544	K2V	—	1.78	—	0.84	248	168.8	1092	[1]
Kepler-1606b	Kepler-1606	G?V	—	2.07	—	1.64	277	196.4	2710	[29]
Kepler-1649c	Kepler-1649	M5V	1.20	1.06	—	0.75	237	19.5	301	[30]
Kepler-1652b	Kepler-1652	M?V	—	1.60	—	0.84	244	38.1	822
Kepler-1653b	Kepler-1653	K?V	—	2.17	—	1.04	258	140.3	2461
Kepler-1701b	Kepler-1701	K?V	—	2.22	—	1.42	275	169.1	1904	[1][31]
L 98-59 f	L 98-59	M3V	≥2.46	—	—	>1	~280	23.15	34.6	Unconfirmed candidate[32]
LHS 1140 b	LHS 1140	M4V	5.60	1.73	5.9±0.3	0.43	226	24.7	49	Likely ocean world or dense mini-Neptune[33]
LP 890-9 c	LP 890-9	M6V	—	1.37	—	0.91	272	8.46	105	[34]
Luyten b	Luyten's Star	M3V	≥2.89	~1.35	—	1.06	258	18.65	12.3	[35]
Proxima Centauri b	Proxima Centauri	M5V	≥1.27	~1.30	—	0.70	228	11.186	4.25	Affected by solar flare, possibly affected by high radiation[36]
Ross 128 b	Ross 128	M4V	≥1.40	~1.80	—	1.48	280	9.87	11.0	[37]
Ross 508 b	Ross 508	M4V	≥4.00	—	—	1.32		10.8	37	[38]
Teegarden's Star b	Teegarden's Star	M7V	≥1.05	~1.02	—	1.15	264	4.91	12.5	Radius is estimated[39][40]
Teegarden's Star c	Teegarden's Star	M7V	≥1.11	~1.04	—	0.37	199	11.4	12.5	[39]
TOI-700 d	TOI-700	M2V	~1.72	1.14	—	0.87	246	37.4	101
TOI-700 e	TOI-700	M2V	0.82	0.95	—	1.27[41]	273	27.8	101	[42]
TOI-715 b	TOI-715	M4	3.02	1.55	–	0.67	234	19.29	137	[43] [44]
TOI-2257 b	TOI-2257	M3V	5.712+4.288 −2.311	2.20	—	0.57 (0.26−2.25)	256+61 −17	35.2	188	Highly eccentric[1][45]
TRAPPIST-1d	TRAPPIST-1	M8V	0.39	0.78	3.39	1.12	258	4.05	41	Confirmed to be rocky[46][47]
TRAPPIST-1e	TRAPPIST-1	M8V	0.69	0.92	5.65	0.65	230	6.1	41	Confirmed to be rocky[46][47]
TRAPPIST-1f	TRAPPIST-1	M8V	1.04	1.04	3.3 ± 0.9	0.37	200	9.2	41	Confirmed to be rocky[46][47]
TRAPPIST-1g	TRAPPIST-1	M8V	1.32	1.13	4.186	0.25	182	12.4	41	Confirmed to be rocky[46][47]
Wolf 1069 b	Wolf 1069	M5V	≥1.26	~1.08	—	0.65	250	15.6	31.2	[48]
Wolf 1061c	Wolf 1061	M3V	≥3.41	~1.60	—	1.30	271	17.9	13.8	[1]

Previous candidates

Some exoplanet candidates detected by radial velocity that were originally thought to be potentially habitable were later found to most likely be artifacts of stellar activity. These include Gliese 581 d & g,^[49][50][51] Gliese 667 Ce & f,^[12][52] Gliese 682 b & c,^[7] Kapteyn b,^[53][54] and Gliese 832 c.^[55]

HD 85512 b was initially estimated to be potentially habitable,^[56][57] but updated models for the boundaries of the habitable zone placed the planet interior to the HZ,^[58][59] and it is now considered non-habitable.^[1] Kepler-69c has gone through a similar process; though initially estimated to be potentially habitable,^[60] it was quickly realized that the planet is more likely to be similar to Venus,^[61] and is thus no longer considered habitable.^[1] Several other planets, such as Gliese 180 b, also appear to be examples of planets once considered potentially habitable but later found to be interior to the habitable zone.^[1]

Similarly, Tau Ceti e and f were initially both considered potentially habitable,^[62] but with improved models of the circumstellar habitable zone, as of 2022 PHL does not consider either planet potentially habitable.^{[1][failed verification]} Kepler-438b was also initially considered potentially habitable; however, it was later found to be a subject of powerful flares that can strip a planet of its atmosphere, so it is now considered non-habitable.^[1]

K2-3d and K2-18b were originally considered potentially habitable, and the latter remains listed in the HEC,^[1] but recent studies have shown them to be gaseous sub-Neptunes and thus unlikely to be habitable.^{[63][64][65][66][67][68]}

KOI-1686.01 was also considered a potentially habitable exoplanet after its detection in 2011, until proven a false positive by NASA in 2015.^[69] Several other KOIs, like Kepler-577b and Kepler-1649b, were considered potentially habitable prior to confirmation, but with new data are no longer considered habitable.

See also

• Astrobiology
• Carbon planet
• Comparative planetary science
• Earth analog
• Earth Similarity Index
• Extraterrestrial atmosphere
• Extraterrestrial life
• Extraterrestrial liquid water
• Galactic habitable zone
• Goldilocks principle
• Habitable zone - Life habitable zones
• Habitability of orange dwarf systems
• Habitability of natural satellites
• Habitability of red dwarf systems
• Habitability of yellow dwarf systems
• Hypothetical types of biochemistry
• List of Kepler exoplanet candidates in the habitable zone
• List of multiplanetary systems
• List of nearest stars and brown dwarfs
• List of nearest terrestrial exoplanet candidates
• List of potentially habitable moons
• Lists of exoplanets
• Ocean world
• Planetary habitability
• Rare Earth hypothesis
• Solar analog
• Space colonization
• Super-Earth
• Superhabitable planet
• Terrestrial planet
• Timeline of astronomical maps, catalogs, and surveys

References

1. "The Habitable Worlds Catalog". Planetary Habitability Laboratory. University of Puerto Rico at Arecibo. Retrieved 11 June 2024.
2. Lammer, H.; Bredehöft, J. H.; Coustenis, A.; Khodachenko, M. L.; et al. (2009). "What makes a planet habitable?" (PDF). The Astronomy and Astrophysics Review. 17 (2): 181–249. Bibcode:2009A&ARv..17..181L. doi:10.1007/s00159-009-0019-z. S2CID 123220355. Archived from the original (PDF) on 2016-06-02. Retrieved 2016-05-03.
3. Méndez, A.; González-Espada, W. (2016). Searching for Habitable Worlds: An Introduction. IOP Concise Physics. Morgan & Claypool Publishers. p. 1. ISBN 978-1-68174-401-8. Retrieved 28 November 2019.
4. Chen, Jingjing; Kipping, David (2017). "Probabilistic Forecasting of the Masses and Radii of Other Worlds". The Astrophysical Journal. 834 (1): 17. arXiv:1603.08614. Bibcode:2017ApJ...834...17C. doi:10.3847/1538-4357/834/1/17. S2CID 119114880.
5. "NASA Venus Fact Sheet". nssdc.gsfc.nasa.gov/. Retrieved 2023-04-30.
6. Dholakia, Shishir; Palethorpe, Larissa; Venner, Alexander; Mortier, Annelies; Wilson, Thomas G.; Huang, Chelsea X.; Rice, Ken; Van Eylen, Vincent; Nabbie, Emma (2024-05-21), Gliese 12 b, A Temperate Earth-sized Planet at 12 Parsecs Discovered with TESS and CHEOPS, arXiv:2405.13118, retrieved 2024-05-24
7. Feng, Fabo; et al. (8 January 2020). "Search for Nearby Earth Analogs. II. Detection of Five New Planets, Eight Planet Candidates, and Confirmation of Three Planets around Nine Nearby M Dwarfs". The Astrophysical Journal Supplement Series. 246 (1): 11. arXiv:2001.02577. Bibcode:2020ApJS..246...11F. doi:10.3847/1538-4365/ab5e7c. S2CID 210064560.
8. Damasso, M.; et al. (2022), "A quarter century of spectroscopic monitoring of the nearby M dwarf Gl 514", Astronomy & Astrophysics, 666: A187, arXiv:2204.06376, doi:10.1051/0004-6361/202243522, S2CID 248157318
9. Suárez Mascareño, A.; et al. (2017). "HADES RV Programme with HARPS-N at TNG. V. A super-Earth on the inner edge of the habitable zone of the nearby M dwarf GJ 625". Astronomy and Astrophysics. 605. A92. arXiv:1705.06537. Bibcode:2017A&A...605A..92S. doi:10.1051/0004-6361/201730957. S2CID 119003137.
10. LePage, Andrew (22 May 2017). "Habitable Planet Reality Check: Is GJ 625b a Super-Earth or a Super-Venus?". drewexmachina.com. Retrieved 15 September 2022.
11. "GJ 625". hzgallery.org. Retrieved 15 September 2022.
12. Feroz, F.; Hobson, M. P. (2014). "Bayesian analysis of radial velocity data of GJ667C with correlated noise: evidence for only two planets". Monthly Notices of the Royal Astronomical Society. 437 (4): 3540–3549. arXiv:1307.6984. Bibcode:2014MNRAS.437.3540F. doi:10.1093/mnras/stt2148. S2CID 119287992.
13. Suárez Mascareño, A.; González-Alvarez, E.; et al. (November 2022). "Two temperate Earth-mass planets orbiting the nearby star GJ 1002". Astronomy & Astrophysics. 670: A5. arXiv:2212.07332. doi:10.1051/0004-6361/202244991. S2CID 254353639.
14. "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2024-01-30.
15. Díaz, Rodrigo F.; et al. (2016). "The HARPS search for southern extra-solar planets". Astronomy & Astrophysics. 585: A134. arXiv:1510.06446. Bibcode:2016A&A...585A.134D. doi:10.1051/0004-6361/201526729. S2CID 118531921.
16. "Confirmed Planet Overview Page: K2-9b". NASA Exoplanet Archive. NASA Exoplanet Science Institute. Retrieved 4 June 2016.
17. "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2021-01-29.
18. https://science.nasa.gov/exoplanet-catalog/k2-288-b-b/
19. "Confirmed Planet Overview Page: Kepler-22 b". NASA Exoplanet Archive. NASA Exoplanet Science Institute. Retrieved 4 June 2016.
20. "Confirmed Planet Overview Page: Kepler-62e". NASA Exoplanet Archive. NASA Exoplanet Science Institute. Retrieved 4 June 2016.
21. "Confirmed Planet Overview Page: Kepler-62f". NASA Exoplanet Archive. NASA Exoplanet Science Institute. Retrieved 4 June 2016.
22. "Confirmed Planet Overview Page: Kepler-296e". NASA Exoplanet Archive. NASA Exoplanet Science Institute. Retrieved 4 June 2016.
23. Barclay, Thomas; Quintana, Elisa V; Adams, Fred C; Ciardi, David R; Huber, Daniel; Foreman-Mackey, Daniel; Montet, Benjamin T; Caldwell, Douglas (2015). "The Five Planets in the Kepler-296 Binary System All Orbit the Primary: A Statistical and Analytical Analysis". The Astrophysical Journal. 809 (1): 7. arXiv:1505.01845. Bibcode:2015ApJ...809....7B. doi:10.1088/0004-637X/809/1/7. S2CID 37742564.
24. "Confirmed Planet Overview Page: Kepler-296 f". NASA Exoplanet Archive. NASA Exoplanet Science Institute. Retrieved 4 June 2016.
25. "Confirmed Planet Overview Page: Kepler-452 b". NASA Exoplanet Archive. NASA Exoplanet Science Institute. Retrieved 4 June 2016.
26. "Targets of Note: Kepler-452 b". NASA Exoplanet Archive. Retrieved 15 September 2022.
27. Mullally, Fergal; Thompson, Susan E.; Coughlin, Jeffrey L.; Burke, Christopher J.; Rowe, Jason F. (2018). "Kepler's Earth-like Planets Should Not be Confirmed without Independent Detection: The Case of Kepler-452b". The Astronomical Journal. 155 (5): 210. arXiv:1803.11307. Bibcode:2018AJ....155..210M. doi:10.3847/1538-3881/aabae3. S2CID 55481591.
28. Burke, Christopher J.; Mullally, F.; Thompson, Susan E.; Coughlin, Jeffrey L.; Rowe, Jason F. (2019). "Re-evaluating Small Long-period Confirmed Planets from Kepler". The Astronomical Journal. 157 (4): 143. arXiv:1901.00506. Bibcode:2019AJ....157..143B. doi:10.3847/1538-3881/aafb79. S2CID 119047713.
29. "Exoplanet-catalog-Exoplanet exploration-Kepler-1606b".
30. "Earth-Size, Habitable Zone Planet Found Hidden in Early NASA Kepler Data". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2021-01-02.
31. "Exoplanet catalog-Exoplanet exploration-Kepler-1701b".
32. "Comparison of the L 98-59 exoplanet system with the inner Solar System". www.eso.org. Retrieved 2021-08-09.
33. Cadieux, Charles; Plotnykov, Mykhaylo; et al. (2024). "New Mass and Radius Constraints on the LHS 1140 Planets -- LHS 1140 b is Either a Temperate Mini-Neptune or a Water World". The Astrophysical Journal Letters. 960 (1): L3. arXiv:2310.15490. Bibcode:2024ApJ...960L...3C. doi:10.3847/2041-8213/ad1691.
34. Delrez, L.; Murray, C. A.; et al. (September 2022). "Two temperate super-Earths transiting a nearby late-type M dwarf". Astronomy & Astrophysics. 667: A59. arXiv:2209.02831. Bibcode:2022A&A...667A..59D. doi:10.1051/0004-6361/202244041. S2CID 252110654.
35. Astudillo-Defru, Nicola; Forveille, Thierry; Bonfils, Xavier; Ségransan, Damien; Bouchy, François; Delfosse, Xavier; et al. (2017). "The HARPS search for southern extra-solar planets. XLI. A dozen planets around the M dwarfs GJ 3138, GJ 3323, GJ 273, GJ 628, and GJ 3293". Astronomy and Astrophysics. 602. A88. arXiv:1703.05386. Bibcode:2017A&A...602A..88A. doi:10.1051/0004-6361/201630153. S2CID 119418595.
36. Anglada-Escudé, Guillem; Amado, Pedro J.; Barnes, John; et al. (2016). "A terrestrial planet candidate in a temperate orbit around Proxima Centauri". Nature. 536 (7617): 437–440. arXiv:1609.03449. Bibcode:2016Natur.536..437A. doi:10.1038/nature19106. PMID 27558064. S2CID 4451513.
37. Wenz, John (15 November 2017). "A potentially habitable planet has been discovered just 11 light-years away". Astronomy. Archived from the original on 21 February 2018. Retrieved 19 November 2017.
38. Harakawa, Hiroki; et al. (2022). "A super-Earth orbiting near the inner edge of the habitable zone around the M4.5 dwarf Ross 508". Publications of the Astronomical Society of Japan. 74 (4): 904–922. arXiv:2205.11986. Bibcode:2022PASJ...74..904H. doi:10.1093/pasj/psac044.
39. Caballero, J. A.; Reiners, Ansgar; Ribas, I.; Dreizler, S.; Zechmeister, M.; et al. (12 June 2019). "The CARMENES search for exoplanets around M dwarfs. Two temperate Earth-mass planet candidates around Teegarden's Star" (PDF). Astronomy & Astrophysics. 627: A49. arXiv:1906.07196. Bibcode:2019A&A...627A..49Z. doi:10.1051/0004-6361/201935460. ISSN 0004-6361. S2CID 189999121.
40. "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2021-12-05.
41. "TOI-700 | NASA Exoplanet Archive". exoplanetarchive.ipac.caltech.edu. Retrieved 2024-05-25.
42. Kazmierczak, Jeanette; Center, NASA's Goddard Spaceflight (2023-01-11). "NASA Planet Hunter Discovers Second Habitable, Earth-Size World in TOI 700 System". SciTechDaily. Retrieved 2024-05-25.
43. Dransfield, Georgina; Timmermans, Mathilde; Triaud, Amaury H. M. J.; Dévora-Pajares, Martín; Aganze, Christian; Barkaoui, Khalid; Burgasser, Adam J.; Collins, Karen A.; Cointepas, Marion; Ducrot, Elsa; Günther, Maximilian N.; Howell, Steve B.; Murray, Catriona A.; Niraula, Prajwal; Rackham, Benjamin V. (2023-10-28). "A 1.55 R$_{\oplus}$ habitable-zone planet hosted by TOI-715, an M4 star near the ecliptic South Pole". Monthly Notices of the Royal Astronomical Society. 527 (1): 35–52. arXiv:2305.06206. doi:10.1093/mnras/stad1439. ISSN 0035-8711.
44. https://science.nasa.gov/exoplanet-catalog/toi-715-b/
45. Schanche, N.; et al. (2022). "TOI-2257 b: A highly eccentric long-period sub-Neptune transiting a nearby M dwarf". Astronomy & Astrophysics. 657: A45. arXiv:2111.01749. Bibcode:2022A&A...657A..45S. doi:10.1051/0004-6361/202142280. S2CID 240419956.
46. Delrez, Laetitia; et al. (9 January 2018). "Early 2017 observations of TRAPPIST-1 with Spitzer". Monthly Notices of the Royal Astronomical Society. 475 (3): 3577–3597. arXiv:1801.02554. Bibcode:2018MNRAS.475.3577D. doi:10.1093/mnras/sty051. S2CID 54649681.
47. Grimm, Simon L.; et al. (5 February 2018). "The nature of the TRAPPIST-1 exoplanets". Astronomy & Astrophysics. 613: A68. arXiv:1802.01377. Bibcode:2018A&A...613A..68G. doi:10.1051/0004-6361/201732233. S2CID 3441829.
48. Kossakowski, D.; Kürster, M.; et al. (January 2023). "The CARMENES search for exoplanets around M dwarfs, Wolf 1069 b: Earth-mass planet in the habitable zone of a nearby, very low-mass star". Astronomy & Astrophysics. 670: A84. arXiv:2301.02477. Bibcode:2023A&A...670A..84K. doi:10.1051/0004-6361/202245322.
49. Robertson, Paul; Mahadevan, Suvrath; Endl, Michael; Roy, Arpita (3 July 2014). "Stellar activity masquerading as planets in the habitable zone of the M dwarf Gliese 581". Science. 345 (6195): 440–444. arXiv:1407.1049. Bibcode:2014Sci...345..440R. CiteSeerX 10.1.1.767.2071. doi:10.1126/science.1253253. PMID 24993348. S2CID 206556796.
50. Hatzes, A. P. (2016). "Periodic Hαvariations in GL 581: Further evidence for an activity origin to GL 581d". Astronomy & Astrophysics. 585: A144. arXiv:1512.00878. Bibcode:2016A&A...585A.144H. doi:10.1051/0004-6361/201527135. S2CID 55623630.
51. Dodson-Robinson, Sarah E.; Delgado, Victor Ramirez; Harrell, Justin; Haley, Charlotte L. (2022). "Magnitude-squared Coherence: A Powerful Tool for Disentangling Doppler Planet Discoveries from Stellar Activity". The Astronomical Journal. 163 (4): 169. arXiv:2201.13342. Bibcode:2022AJ....163..169D. doi:10.3847/1538-3881/ac52ed. S2CID 246430514.
52. Robertson, Paul; Mahadevan, Suvrath (October 2014). "Disentangling Planets and Stellar Activity for Gliese 667C". The Astrophysical Journal. 793 (2): L24. arXiv:1409.0021. Bibcode:2014ApJ...793L..24R. doi:10.1088/2041-8205/793/2/L24. S2CID 118404871.
53. Robertson, Paul (11 May 2015). "Stellar activity mimics a habitable-zone planet around Kapteyn's star". The Astrophysical Journal. 805 (2): L22. arXiv:1505.02778. Bibcode:2015ApJ...805L..22R. doi:10.1088/2041-8205/805/2/L22. S2CID 117871083.
54. Bortle, Anna; et al. (2021). "A Gaussian Process Regression Reveals No Evidence for Planets Orbiting Kapteyn's Star". The Astronomical Journal. 161 (5): 230. arXiv:2103.02709. Bibcode:2021AJ....161..230B. doi:10.3847/1538-3881/abec89. S2CID 232110395.
55. Gorrini, P.; et al. (2022). "Detailed stellar activity analysis and modelling of GJ 832". Astronomy & Astrophysics. 664: A64. arXiv:2206.07552. doi:10.1051/0004-6361/202243063. S2CID 249674385.
56. Kaltenegger, L.; Udry, S.; Pepe, F. (2011). "A Habitable Planet around HD 85512?". arXiv:1108.3561 [astro-ph.EP].
57. Mendez, Abel (1 August 2012). "Five Potential Habitable Exoplanets Now" (Press release). Planetary Habitability Laboratory @ UPR Arecibo. Archived from the original on 27 February 2021. Retrieved 4 June 2015.
58. Kopparapu, Ravi Kumar; et al. (2013). "Habitable Zones Around Main-Sequence Stars: New Estimates". The Astrophysical Journal. 765 (2): 131. arXiv:1301.6674. Bibcode:2013ApJ...765..131K. doi:10.1088/0004-637X/765/2/131. S2CID 76651902.
59. Mendez, Abel (29 January 2013). "A New Habitable Zone" (Press release). Planetary Habitability Laboratory @ UPR Arecibo. Archived from the original on 11 December 2019. Retrieved 4 June 2015.
60. Barclay, Thomas; et al. (2013). "A super-Earth-sized planet orbiting in or near the habitable zone around Sun-like star". The Astrophysical Journal. 768 (2): 101. arXiv:1304.4941. Bibcode:2013ApJ...768..101B. doi:10.1088/0004-637X/768/2/101. S2CID 51490784.
61. Kane, Stephen R.; et al. (2013). "A Potential Super-Venus in the Kepler-69 System". The Astrophysical Journal. 770 (2): L20. arXiv:1305.2933. Bibcode:2013ApJ...770L..20K. doi:10.1088/2041-8205/770/2/L20. S2CID 9808447.
62. Mendez, Abel (28 December 2012). "Two Nearby Habitable Worlds?" (Press release). Planetary Habitability Laboratory @ UPR Arecibo. Archived from the original on 8 March 2021. Retrieved 4 June 2015.
63. "Confirmed Planet Overview Page: K2-3d". NASA Exoplanet Archive. NASA Exoplanet Science Institute. Retrieved 4 June 2016.
64. "Confirmed Planet Overview Page: K2-18 b". NASA Exoplanet Archive. NASA Exoplanet Science Institute. Retrieved 4 June 2016.
65. Garner, Rob (2019-09-11). "Hubble Finds Water Vapor on Habitable-Zone Exoplanet for 1st Time". NASA. Retrieved 2019-12-06.
66. Damasso, Mario; et al. (2018). "Eyes on K2-3: A system of three likely sub-Neptunes characterized with HARPS-N and HARPS". Astronomy and Astrophysics. 615. A69. arXiv:1802.08320. Bibcode:2018A&A...615A..69D. doi:10.1051/0004-6361/201732459. S2CID 58923147.
67. Kosiarek, Molly R.; et al. (2019). "Bright Opportunities for Atmospheric Characterization of Small Planets: Masses and Radii of K2-3 b, c, and d and GJ3470 b from Radial Velocity Measurements and Spitzer Transits". The Astronomical Journal. 157 (3): 97. arXiv:1812.08241. Bibcode:2019AJ....157...97K. doi:10.3847/1538-3881/aaf79c. S2CID 119440420.
68. Benneke, Björn; et al. (2019). "Water Vapor and Clouds on the Habitable-zone Sub-Neptune Exoplanet K2-18b". The Astrophysical Journal. 887 (1): L14. arXiv:1909.04642. Bibcode:2019ApJ...887L..14B. doi:10.3847/2041-8213/ab59dc. S2CID 209324670.
69. "Kepler Candidate Overview Page: KOI-1686.01". NASA Exoplanet Archive. NASA Exoplanet Science Institute. Retrieved 28 December 2015.

External links

• "The Habitable Exoplanets Catalog" (PHL/UPR Arecibo)
• Habitable Exoplanets Catalogue ranks alien worlds on suitability for life