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List of potentially habitable exoplanets

Updated: Wikipedia source

List of potentially habitable exoplanets

The following list includes potentially habitable exoplanets. It 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. 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.

Tables

· Main list
Earth (reported for reference)
Earth (reported for reference)
Object
Earth (reported for reference)
Star
Sun
Star type
G2V
Mass (M⊕)
1
Radius (R⊕)
1
Density (g/cm3)
5
Flux (F⊕)
1
Teq (K)
255
Period (days)
365
Distance (ly)
0
Refs/notes
Only planet confirmed to support life
Venus (reported for reference)
Venus (reported for reference)
Object
Venus (reported for reference)
Star
Sun
Star type
G2V
Mass (M⊕)
0
Radius (R⊕)
0
Density (g/cm3)
5
Flux (F⊕)
1
Teq (K)
244
Period (days)
224
Distance (ly)
0
Mars (reported for reference)
Mars (reported for reference)
Object
Mars (reported for reference)
Star
Sun
Star type
G2V
Mass (M⊕)
0
Radius (R⊕)
0
Density (g/cm3)
3
Flux (F⊕)
0
Teq (K)
209
Period (days)
686
Distance (ly)
0 –0
55 Cancri Bc
55 Cancri Bc
Object
55 Cancri Bc
Star
55 Cancri B
Star type
M4V
Mass (M⊕)
≥5
Radius (R⊕)
—
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
200
Period (days)
33
Distance (ly)
40
Gliese 12 b
Gliese 12 b
Object
Gliese 12 b
Star
Gliese 12
Star type
M4V
Mass (M⊕)
0 or 0
Radius (R⊕)
0 +0 −0
Density (g/cm3)
5 or 7
Flux (F⊕)
1 ±0
Teq (K)
315
Period (days)
12
Distance (ly)
39
Refs/notes
Near inner edge of HZ, might resemble Venus
Gliese 163 c
Gliese 163 c
Object
Gliese 163 c
Star
Gliese 163
Star type
M3V
Mass (M⊕)
≥6
Radius (R⊕)
—
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
277
Period (days)
25
Distance (ly)
49
Gliese 180 d
Gliese 180 d
Object
Gliese 180 d
Star
Gliese 180
Star type
M2V
Mass (M⊕)
≥7
Radius (R⊕)
—
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
—
Period (days)
106
Distance (ly)
39
Gliese 251 c
Gliese 251 c
Object
Gliese 251 c
Star
Gliese 251
Star type
M3V
Mass (M⊕)
≥3
Radius (R⊕)
—
Density (g/cm3)
—
Flux (F⊕)
—
Teq (K)
—
Period (days)
53
Distance (ly)
18
Gliese 357 d
Gliese 357 d
Object
Gliese 357 d
Star
Gliese 357
Star type
M2V
Mass (M⊕)
≥6
Radius (R⊕)
—
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
200
Period (days)
55
Distance (ly)
31
Gliese 433 d
Gliese 433 d
Object
Gliese 433 d
Star
Gliese 433
Star type
M2V
Mass (M⊕)
≥5
Radius (R⊕)
—
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
—
Period (days)
36
Distance (ly)
29
Gliese 514 b
Gliese 514 b
Object
Gliese 514 b
Star
Gliese 514
Star type
M1V
Mass (M⊕)
≥5
Radius (R⊕)
—
Density (g/cm3)
—
Flux (F⊕)
0 +0 −0
Teq (K)
202
Period (days)
140
Distance (ly)
25
Refs/notes
Highly eccentric
Gliese 555 b
Gliese 555 b
Object
Gliese 555 b
Star
Gliese 555
Star type
M4V
Mass (M⊕)
≥5
Radius (R⊕)
—
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
214
Period (days)
36
Distance (ly)
20
Gliese 625 b
Gliese 625 b
Object
Gliese 625 b
Star
Gliese 625
Star type
M2V
Mass (M⊕)
≥2
Radius (R⊕)
—
Density (g/cm3)
—
Teq (K)
—
Period (days)
14
Distance (ly)
21
Refs/notes
Likely too hot
Gliese 667 Cc
Gliese 667 Cc
Object
Gliese 667 Cc
Star
Gliese 667 C
Star type
M1V
Mass (M⊕)
≥3
Radius (R⊕)
~1
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
277
Period (days)
28
Distance (ly)
23
GJ 1002 b
GJ 1002 b
Object
GJ 1002 b
Star
GJ 1002
Star type
M5V
Mass (M⊕)
≥1
Radius (R⊕)
~1
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
231
Period (days)
10
Distance (ly)
15
GJ 1002 c
GJ 1002 c
Object
GJ 1002 c
Star
GJ 1002
Star type
M5V
Mass (M⊕)
≥1
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
182
Period (days)
21
Distance (ly)
15
GJ 1061 c
GJ 1061 c
Object
GJ 1061 c
Star
GJ 1061
Star type
M5V
Mass (M⊕)
1 +0 −0
Radius (R⊕)
~1
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
275
Period (days)
6
Distance (ly)
12
GJ 1061 d
GJ 1061 d
Object
GJ 1061 d
Star
GJ 1061
Star type
M5V
Mass (M⊕)
1 +0 −0
Radius (R⊕)
~1
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
218
Period (days)
13
Distance (ly)
12
GJ 3293 d
GJ 3293 d
Object
GJ 3293 d
Star
GJ 3293
Star type
M2V
Mass (M⊕)
≥7
Radius (R⊕)
—
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
223
Period (days)
48
Distance (ly)
66
GJ 3998 d
GJ 3998 d
Object
GJ 3998 d
Star
GJ 3998
Star type
M1V
Mass (M⊕)
≥6
Radius (R⊕)
—
Density (g/cm3)
—
Teq (K)
—
Period (days)
41
Distance (ly)
58
HD 20794 d
HD 20794 d
Object
HD 20794 d
Star
HD 20794
Star type
G8V
Mass (M⊕)
≥5
Radius (R⊕)
—
Density (g/cm3)
—
Flux (F⊕)
—
Teq (K)
—
Period (days)
647
Distance (ly)
19
Refs/notes
Highly eccentric orbit
HD 216520 c
HD 216520 c
Object
HD 216520 c
Star
HD 216520
Star type
K0V
Mass (M⊕)
≥9
Radius (R⊕)
—
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
—
Period (days)
154
Distance (ly)
64
HIP 38594 b
HIP 38594 b
Object
HIP 38594 b
Star
HIP 38594
Star type
M0V
Mass (M⊕)
≥8
Radius (R⊕)
—
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
—
Period (days)
60
Distance (ly)
58
K2-72e
K2-72e
Object
K2-72e
Star
K2-72
Star type
M2V
Mass (M⊕)
~2
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
261
Period (days)
24
Distance (ly)
217
K2-155d
K2-155d
Object
K2-155d
Star
K2-155
Star type
K?V
Mass (M⊕)
4
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
—
Teq (K)
289
Period (days)
40
Distance (ly)
290
K2-288Bb
K2-288Bb
Object
K2-288Bb
Star
K2-288 B
Star type
M3V
Mass (M⊕)
4
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
207
Period (days)
31
Distance (ly)
214
K2-332b
K2-332b
Object
K2-332b
Star
K2-332
Star type
M3
Mass (M⊕)
—
Radius (R⊕)
2
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
—
Period (days)
17
Distance (ly)
402
Kepler-22b
Kepler-22b
Object
Kepler-22b
Star
Kepler-22
Star type
G5V
Mass (M⊕)
~9 or ~35
Radius (R⊕)
2
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
261
Period (days)
289
Distance (ly)
635
Kepler-62e
Kepler-62e
Object
Kepler-62e
Star
Kepler-62
Star type
K2V
Mass (M⊕)
4 +14 −2
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
264
Period (days)
122
Distance (ly)
981
Kepler-62f
Kepler-62f
Object
Kepler-62f
Star
Kepler-62
Star type
K2V
Mass (M⊕)
2 ±0
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
204
Period (days)
267
Distance (ly)
981
Kepler-155c
Kepler-155c
Object
Kepler-155c
Star
Kepler-155
Star type
M0V
Mass (M⊕)
—
Radius (R⊕)
2
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
—
Period (days)
52
Distance (ly)
957
Kepler-174d
Kepler-174d
Object
Kepler-174d
Star
Kepler-174
Star type
K3V
Mass (M⊕)
—
Radius (R⊕)
2
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
206
Period (days)
247
Distance (ly)
1,254
Kepler-186f
Kepler-186f
Object
Kepler-186f
Star
Kepler-186
Star type
M1V
Mass (M⊕)
1 +2 −1
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
188
Period (days)
129
Distance (ly)
579
Kepler-283c
Kepler-283c
Object
Kepler-283c
Star
Kepler-283
Star type
K5V
Mass (M⊕)
—
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
248
Period (days)
92
Distance (ly)
1,526
Kepler-296e
Kepler-296e
Object
Kepler-296e
Star
Kepler-296
Star type
K7V
Mass (M⊕)
2
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
276
Period (days)
34
Distance (ly)
737
Kepler-296f
Kepler-296f
Object
Kepler-296f
Star
Kepler-296
Star type
K7V
Mass (M⊕)
—
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
225
Period (days)
63
Distance (ly)
737
Kepler-440b
Kepler-440b
Object
Kepler-440b
Star
Kepler-440
Star type
K6V
Mass (M⊕)
—
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
273
Period (days)
101
Distance (ly)
981
Kepler-442b
Kepler-442b
Object
Kepler-442b
Star
Kepler-442
Star type
K5V
Mass (M⊕)
2 +5 −1
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
233
Period (days)
112
Distance (ly)
1,193
Kepler-443b
Kepler-443b
Object
Kepler-443b
Star
Kepler-443
Star type
K3V
Mass (M⊕)
—
Radius (R⊕)
2
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
247
Period (days)
177
Distance (ly)
2,615
Kepler-705b
Kepler-705b
Object
Kepler-705b
Star
Kepler-705
Star type
M?V
Mass (M⊕)
—
Radius (R⊕)
2
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
243
Period (days)
56
Distance (ly)
903
Kepler-725 c
Kepler-725 c
Object
Kepler-725 c
Star
Kepler-725
Star type
G9V
Mass (M⊕)
9
Radius (R⊕)
—
Density (g/cm3)
—
Flux (F⊕)
—
Period (days)
207
Distance (ly)
2,526
Kepler-1229b
Kepler-1229b
Object
Kepler-1229b
Star
Kepler-1229
Star type
M?V
Mass (M⊕)
2
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
213
Period (days)
86
Distance (ly)
865
Kepler-1410b
Kepler-1410b
Object
Kepler-1410b
Star
Kepler-1410
Star type
K?V
Mass (M⊕)
—
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
274
Period (days)
60
Distance (ly)
1196
Kepler-1455b
Kepler-1455b
Object
Kepler-1455b
Star
Kepler-1455
Star type
K?V
Mass (M⊕)
—
Radius (R⊕)
2
Density (g/cm3)
—
Flux (F⊕)
1
Period (days)
49
Distance (ly)
1280
Kepler-1540b
Kepler-1540b
Object
Kepler-1540b
Star
Kepler-1540
Star type
K?V
Mass (M⊕)
—
Radius (R⊕)
2
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
250
Period (days)
125
Distance (ly)
799
Kepler-1544 b
Kepler-1544 b
Object
Kepler-1544 b
Star
Kepler-1544
Star type
K2V
Mass (M⊕)
—
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
248
Period (days)
168
Distance (ly)
1092
Kepler-1606b
Kepler-1606b
Object
Kepler-1606b
Star
Kepler-1606
Star type
G7V
Mass (M⊕)
—
Radius (R⊕)
2
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
277
Period (days)
196
Distance (ly)
2710
Kepler-1649c
Kepler-1649c
Object
Kepler-1649c
Star
Kepler-1649
Star type
M5V
Mass (M⊕)
1
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
237
Period (days)
19
Distance (ly)
301
Kepler-1652b
Kepler-1652b
Object
Kepler-1652b
Star
Kepler-1652
Star type
M?V
Mass (M⊕)
—
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
244
Period (days)
38
Distance (ly)
822
Kepler-1653b
Kepler-1653b
Object
Kepler-1653b
Star
Kepler-1653
Star type
K?V
Mass (M⊕)
—
Radius (R⊕)
2
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
258
Period (days)
140
Distance (ly)
2461
Kepler-1701b
Kepler-1701b
Object
Kepler-1701b
Star
Kepler-1701
Star type
K?V
Mass (M⊕)
—
Radius (R⊕)
2
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
275
Period (days)
169
Distance (ly)
1904
LHS 1140 b
LHS 1140 b
Object
LHS 1140 b
Star
LHS 1140
Star type
M4V
Mass (M⊕)
5
Radius (R⊕)
1
Density (g/cm3)
5 ±0
Flux (F⊕)
0
Teq (K)
226
Period (days)
24
Distance (ly)
49
Refs/notes
Likely an ocean world with an atmosphere
LP 890-9 c
LP 890-9 c
Object
LP 890-9 c
Star
LP 890-9
Star type
M6V
Mass (M⊕)
—
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
272
Period (days)
8
Distance (ly)
105
Luyten b
Luyten b
Object
Luyten b
Star
Luyten's Star
Star type
M3V
Mass (M⊕)
≥2
Radius (R⊕)
~1
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
258
Period (days)
18
Distance (ly)
12
Proxima Centauri b
Proxima Centauri b
Object
Proxima Centauri b
Star
Proxima Centauri
Star type
M5V
Mass (M⊕)
≥1
Radius (R⊕)
1 ±0
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
228
Period (days)
11
Distance (ly)
4
Refs/notes
Affected by stellar flare, possibly affected by high radiation flux
Ross 128 b
Ross 128 b
Object
Ross 128 b
Star
Ross 128
Star type
M4V
Mass (M⊕)
≥1
Radius (R⊕)
~1
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
280
Period (days)
9
Distance (ly)
11
Ross 508 b
Ross 508 b
Object
Ross 508 b
Star
Ross 508
Star type
M4V
Mass (M⊕)
≥4
Radius (R⊕)
—
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
—
Period (days)
10
Distance (ly)
37
Struve 2398 Bc
Struve 2398 Bc
Object
Struve 2398 Bc
Star
Struve 2398
Star type
M4V
Mass (M⊕)
≥3
Radius (R⊕)
—
Density (g/cm3)
—
Period (days)
37
Distance (ly)
11
Teegarden's Star b
Teegarden's Star b
Object
Teegarden's Star b
Star
Teegarden's Star
Star type
M7V
Mass (M⊕)
≥1
Radius (R⊕)
~1
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
264
Period (days)
4
Distance (ly)
12
Teegarden's Star c
Teegarden's Star c
Object
Teegarden's Star c
Star
Teegarden's Star
Star type
M7V
Mass (M⊕)
≥1
Radius (R⊕)
~1
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
199
Period (days)
11
Distance (ly)
12
L 98-59 f
L 98-59 f
Object
L 98-59 f
Star
L 98-59
Star type
M3V
Mass (M⊕)
≥2
Radius (R⊕)
—
Density (g/cm3)
—
Flux (F⊕)
>1
Teq (K)
289
Period (days)
23
Distance (ly)
34
TOI-700 d
TOI-700 d
Object
TOI-700 d
Star
TOI-700
Star type
M2V
Mass (M⊕)
~1
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
246
Period (days)
37
Distance (ly)
101
TOI-700 e
TOI-700 e
Object
TOI-700 e
Star
TOI-700
Star type
M2V
Mass (M⊕)
0
Radius (R⊕)
0
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
273
Period (days)
27
Distance (ly)
101
TOI-715 b
TOI-715 b
Object
TOI-715 b
Star
TOI-715
Star type
M4V
Mass (M⊕)
3
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
234
Period (days)
19
Distance (ly)
137
TOI-2094 Ab
TOI-2094 Ab
Object
TOI-2094 Ab
Star
TOI-2094
Star type
M3V
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
0
Period (days)
18
Distance (ly)
164
TOI-2257 b
TOI-2257 b
Object
TOI-2257 b
Star
TOI-2257
Star type
M3V
Mass (M⊕)
5 +4 −2
Radius (R⊕)
2
Density (g/cm3)
—
Flux (F⊕)
0 +1 −0
Teq (K)
256+61 −17
Period (days)
35
Distance (ly)
188
Refs/notes
Highly eccentric
TOI-2285 b
TOI-2285 b
Object
TOI-2285 b
Star
TOI-2285
Star type
M4V
Mass (M⊕)
4
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
—
Teq (K)
284
Period (days)
27
Distance (ly)
137
Refs/notes
Likely too hot
TOI-7166 b
TOI-7166 b
Object
TOI-7166 b
Star
TOI-7166
Star type
M4V
Radius (R⊕)
2
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
249
Period (days)
12
Distance (ly)
115
TRAPPIST-1e
TRAPPIST-1e
Object
TRAPPIST-1e
Star
TRAPPIST-1
Star type
M8V
Mass (M⊕)
0
Radius (R⊕)
0
Density (g/cm3)
5
Flux (F⊕)
0
Teq (K)
230
Period (days)
6
Distance (ly)
41
Refs/notes
Confirmed to be rocky. Possibly has an atmosphere.
TRAPPIST-1f
TRAPPIST-1f
Object
TRAPPIST-1f
Star
TRAPPIST-1
Star type
M8V
Mass (M⊕)
1
Radius (R⊕)
1
Density (g/cm3)
3 ± 0
Flux (F⊕)
0
Teq (K)
200
Period (days)
9
Distance (ly)
41
Refs/notes
Confirmed to be rocky
TRAPPIST-1g
TRAPPIST-1g
Object
TRAPPIST-1g
Star
TRAPPIST-1
Star type
M8V
Mass (M⊕)
1
Radius (R⊕)
1
Density (g/cm3)
4
Flux (F⊕)
0
Teq (K)
182
Period (days)
12
Distance (ly)
41
Refs/notes
Confirmed to be rocky
Wolf 1069 b
Wolf 1069 b
Object
Wolf 1069 b
Star
Wolf 1069
Star type
M5V
Mass (M⊕)
≥1
Radius (R⊕)
~1
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
250
Period (days)
15
Distance (ly)
31
Wolf 1061c
Wolf 1061c
Object
Wolf 1061c
Star
Wolf 1061
Star type
M3V
Mass (M⊕)
≥3
Radius (R⊕)
~1
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
271
Period (days)
17
Distance (ly)
13
Object
Star
Star type
Mass (M⊕)
Radius (R⊕)
Density (g/cm3)
Flux (F⊕)
Teq (K)
Period (days)
Distance (ly)
Refs/notes
Earth (reported for reference)
Sun
G2V
1
1
5
1
255
365
0
Only planet confirmed to support life
Venus (reported for reference)
Sun
G2V
0
0
5
1
244
224
0
Mars (reported for reference)
Sun
G2V
0
0
3
0
209
686
0 –0
55 Cancri Bc
55 Cancri B
M4V
≥5
—
—
0
200
33
40
Gliese 12 b
Gliese 12
M4V
0 or 0
0 +0 −0
5 or 7
1 ±0
315
12
39
Near inner edge of HZ, might resemble Venus
Gliese 163 c
Gliese 163
M3V
≥6
—
—
1
277
25
49
Gliese 180 d
Gliese 180
M2V
≥7
—
—
0
—
106
39
Gliese 251 c
Gliese 251
M3V
≥3
—
—
—
—
53
18
Gliese 357 d
Gliese 357
M2V
≥6
—
—
0
200
55
31
Gliese 433 d
Gliese 433
M2V
≥5
—
—
1
—
36
29
Gliese 514 b
Gliese 514
M1V
≥5
—
—
0 +0 −0
202
140
25
Highly eccentric
Gliese 555 b
Gliese 555
M4V
≥5
—
—
0
214
36
20
Gliese 625 b
Gliese 625
M2V
≥2
—
—
—
14
21
Likely too hot
Gliese 667 Cc
Gliese 667 C
M1V
≥3
~1
—
0
277
28
23
GJ 1002 b
GJ 1002
M5V
≥1
~1
—
0
231
10
15
GJ 1002 c
GJ 1002
M5V
≥1
1
—
0
182
21
15
GJ 1061 c
GJ 1061
M5V
1 +0 −0
~1
—
1
275
6
12
GJ 1061 d
GJ 1061
M5V
1 +0 −0
~1
—
0
218
13
12
GJ 3293 d
GJ 3293
M2V
≥7
—
—
0
223
48
66
GJ 3998 d
GJ 3998
M1V
≥6
—
—
—
41
58
HD 20794 d
HD 20794
G8V
≥5
—
—
—
—
647
19
Highly eccentric orbit
HD 216520 c
HD 216520
K0V
≥9
—
—
1
—
154
64
HIP 38594 b
HIP 38594
M0V
≥8
—
—
1
—
60
58
K2-72e
K2-72
M2V
~2
1
—
1
261
24
217
K2-155d
K2-155
K?V
4
1
—
—
289
40
290
K2-288Bb
K2-288 B
M3V
4
1
—
0
207
31
214
K2-332b
K2-332
M3
—
2
—
1
—
17
402
Kepler-22b
Kepler-22
G5V
~9 or ~35
2
—
1
261
289
635
Kepler-62e
Kepler-62
K2V
4 +14 −2
1
—
1
264
122
981
Kepler-62f
Kepler-62
K2V
2 ±0
1
—
0
204
267
981
Kepler-155c
Kepler-155
M0V
—
2
—
1
—
52
957
Kepler-174d
Kepler-174
K3V
—
2
—
0
206
247
1,254
Kepler-186f
Kepler-186
M1V
1 +2 −1
1
—
0
188
129
579
Kepler-283c
Kepler-283
K5V
—
1
—
0
248
92
1,526
Kepler-296e
Kepler-296
K7V
2
1
—
1
276
34
737
Kepler-296f
Kepler-296
K7V
—
1
—
0
225
63
737
Kepler-440b
Kepler-440
K6V
—
1
—
1
273
101
981
Kepler-442b
Kepler-442
K5V
2 +5 −1
1
—
0
233
112
1,193
Kepler-443b
Kepler-443
K3V
—
2
—
0
247
177
2,615
Kepler-705b
Kepler-705
M?V
—
2
—
0
243
56
903
Kepler-725 c
Kepler-725
G9V
9
—
—
—
207
2,526
Kepler-1229b
Kepler-1229
M?V
2
1
—
0
213
86
865
Kepler-1410b
Kepler-1410
K?V
—
1
—
1
274
60
1196
Kepler-1455b
Kepler-1455
K?V
—
2
—
1
49
1280
Kepler-1540b
Kepler-1540
K?V
—
2
—
0
250
125
799
Kepler-1544 b
Kepler-1544
K2V
—
1
—
0
248
168
1092
Kepler-1606b
Kepler-1606
G7V
—
2
—
1
277
196
2710
Kepler-1649c
Kepler-1649
M5V
1
1
—
0
237
19
301
Kepler-1652b
Kepler-1652
M?V
—
1
—
0
244
38
822
· Current candidates
Earth (reported for reference)
Earth (reported for reference)
Object
Earth (reported for reference)
Star
Sun
Star type
G2V
Mass (M⊕)
1
Radius (R⊕)
1
Density (g/cm3)
5
Flux (F⊕)
1
Teq (K)
255
Period (days)
365
Distance (ly)
0
Refs/notes
Only planet confirmed to support life
Venus (reported for reference)
Venus (reported for reference)
Object
Venus (reported for reference)
Star
Sun
Star type
G2V
Mass (M⊕)
0
Radius (R⊕)
0
Density (g/cm3)
5
Flux (F⊕)
1
Teq (K)
244
Period (days)
224
Distance (ly)
0
Mars (reported for reference)
Mars (reported for reference)
Object
Mars (reported for reference)
Star
Sun
Star type
G2V
Mass (M⊕)
0
Radius (R⊕)
0
Density (g/cm3)
3
Flux (F⊕)
0
Teq (K)
209
Period (days)
686
Distance (ly)
0 –0
Gliese 180 c
Gliese 180 c
Object
Gliese 180 c
Star
Gliese 180
Star type
M2V
Mass (M⊕)
≥6
Radius (R⊕)
—
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
239
Period (days)
24
Distance (ly)
39
HD 40307 g
HD 40307 g
Object
HD 40307 g
Star
HD 40307
Star type
K2V
Mass (M⊕)
≥7
Radius (R⊕)
—
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
226
Period (days)
197
Distance (ly)
42
HD 137010 b
HD 137010 b
Object
HD 137010 b
Star
HD 137010
Star type
K3V
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
0
Period (days)
355
Distance (ly)
146
Kepler-452b
Kepler-452b
Object
Kepler-452b
Star
Kepler-452
Star type
G2V
Mass (M⊕)
~5
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
1
Teq (K)
261
Period (days)
384
Distance (ly)
1799
KOI-4878
KOI-4878
Object
KOI-4878
Star
KOI-4878
Star type
F8V
Mass (M⊕)
~1 +1 −0
Radius (R⊕)
1
Density (g/cm3)
—
Flux (F⊕)
1 +1 −0
Teq (K)
257
Period (days)
449
Distance (ly)
1,075
KOI-5715
KOI-5715
Object
KOI-5715
Star
KOI-5715
Star type
K3V
Mass (M⊕)
—
Radius (R⊕)
1
Teq (K)
260
Period (days)
190
Distance (ly)
2,964
Lacaille 9352 d
Lacaille 9352 d
Object
Lacaille 9352 d
Star
Lacaille 9352
Star type
M0V
Mass (M⊕)
≥8
Radius (R⊕)
—
Density (g/cm3)
—
Period (days)
50
Distance (ly)
10
LTT 1445 Ad
LTT 1445 Ad
Object
LTT 1445 Ad
Star
LTT 1445A
Star type
M2V
Mass (M⊕)
≥2
Radius (R⊕)
—
Density (g/cm3)
—
Flux (F⊕)
—
Period (days)
24
Distance (ly)
22
Tau Ceti f
Tau Ceti f
Object
Tau Ceti f
Star
Tau Ceti
Star type
G8V
Mass (M⊕)
≥3
Radius (R⊕)
—
Density (g/cm3)
—
Flux (F⊕)
0
Teq (K)
190
Period (days)
642
Distance (ly)
11
Refs/notes
Has been only in HZ for less than 1 Gya
TOI-715
TOI-715
Object
TOI-715
Star
TOI-715
Star type
M4V
Radius (R⊕)
1 ±0
Flux (F⊕)
0 +0 −0
Period (days)
25
Distance (ly)
137
WD 1054–226 b
WD 1054–226 b
Object
WD 1054–226 b
Star
WD 1054–226
Star type
DAZ
Mass (M⊕)
~1
Radius (R⊕)
—
Density (g/cm3)
—
Period (days)
1
Distance (ly)
118
Refs/notes
The surface temperature might be high enough for habitability
Object
Star
Star type
Mass (M⊕)
Radius (R⊕)
Density (g/cm3)
Flux (F⊕)
Teq (K)
Period (days)
Distance (ly)
Refs/notes
Earth (reported for reference)
Sun
G2V
1
1
5
1
255
365
0
Only planet confirmed to support life
Venus (reported for reference)
Sun
G2V
0
0
5
1
244
224
0
Mars (reported for reference)
Sun
G2V
0
0
3
0
209
686
0 –0
Gliese 180 c
Gliese 180
M2V
≥6
—
—
0
239
24
39
HD 40307 g
HD 40307
K2V
≥7
—
—
0
226
197
42
HD 137010 b
HD 137010
K3V
1
—
0
355
146
Kepler-452b
Kepler-452
G2V
~5
1
—
1
261
384
1799
KOI-4878
KOI-4878
F8V
~1 +1 −0
1
—
1 +1 −0
257
449
1,075
KOI-5715
KOI-5715
K3V
—
1
260
190
2,964
Lacaille 9352 d
Lacaille 9352
M0V
≥8
—
—
50
10
LTT 1445 Ad
LTT 1445A
M2V
≥2
—
—
—
24
22
Tau Ceti f
Tau Ceti
G8V
≥3
—
—
0
190
642
11
Has been only in HZ for less than 1 Gya
TOI-715
TOI-715
M4V
1 ±0
0 +0 −0
25
137
WD 1054–226 b
WD 1054–226
DAZ
~1
—
—
1
118
The surface temperature might be high enough for habitability

References

  1. The existence of Tau Ceti e is dubious, see
  2. Planetary Habitability Laboratory
    https://phl.upr.edu/hwc
  3. The Astronomy and Astrophysics Review
    https://web.archive.org/web/20160602235333/http://veilnebula.jorgejohnson.me/uploads/3/5/8/7/3587678/lammer_et_al_2009_astron_astro_rev-4.pdf
  4. Searching for Habitable Worlds: An Introduction
    https://books.google.com/books?id=bD9iDwAAQBAJ&pg=PP1
  5. The Astrophysical Journal
    https://doi.org/10.3847%2F1538-4357%2F834%2F1%2F17
  6. nssdc /
    https://web.archive.org/web/20180511140851/https://nssdc.gsfc.nasa.gov/planetary/factsheet/venusfact.html
  7. nssdc /
    https://nssdc.gsfc.nasa.gov/planetary/factsheet/marsfact.html
  8. Astronomy & Astrophysics
    https://arxiv.org/abs/2510.11523
  9. τ
    https://arxiv.org/abs/2506.20561
  10. Monthly Notices of the Royal Astronomical Society
    https://doi.org/10.1093%2Fmnras%2Fstaf1703
  11. Monthly Notices of the Royal Astronomical Society
    https://arxiv.org/abs/2405.13118
  12. The Astronomical Journal
    https://doi.org/10.3847%2F1538-3881%2Fae0e20
  13. Astronomy & Astrophysics
    https://arxiv.org/abs/2204.06376
  14. exoplanetkyoto
    http://www.exoplanetkyoto.org/exohtml/HN_Lib_b.html
  15. Astronomy & Astrophysics
    https://arxiv.org/abs/2302.10528
  16. Astronomy and Astrophysics
    https://www.aanda.org/articles/aa/full_html/2017/09/aa30957-17/aa30957-17.html
  17. drewexmachina
    https://www.drewexmachina.com/2017/05/22/habitable-planet-reality-check-is-gj-625b-a-super-earth-or-a-super-venus/
  18. hzgallery
    http://hzgallery.org/3972_2.png
  19. Monthly Notices of the Royal Astronomical Society
    https://doi.org/10.1093%2Fmnras%2Fstt2148
  20. Astronomy & Astrophysics
    https://doi.org/10.1051%2F0004-6361%2F202244991
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