List of potentially habitable exoplanets

The following list includes some of the potentially habitable exoplanets discovered so far. 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

· Confirmed Habitable Exoplanets

Earth(reported for reference)

Object

Earth(reported for reference)

Star

Sun

Star type

G2V

Mass (M⊕)

1.00

Radius (R⊕)

1.00

Density (g/cm3)

5.514

Flux (F⊕)

1.00

Teq (K)

255

Period (days)

365.25

Distance (ly)

Refs/notes

Only planet confirmed to support life

Venus(reported for reference)

Object

Venus(reported for reference)

Star

Sun

Star type

G2V

Mass (M⊕)

0.815

Radius (R⊕)

0.950

Density (g/cm3)

5.243

Flux (F⊕)

1.911

Teq (K)

244.261

Period (days)

224.70

Distance (ly)

0.0000042

Mars(reported for reference)

Object

Mars(reported for reference)

Star

Sun

Star type

G2V

Mass (M⊕)

0.107

Radius (R⊕)

0.533

Density (g/cm3)

3.934

Flux (F⊕)

0.431

Teq (K)

209.8

Period (days)

686.98

Distance (ly)

0.0000058–0.000042

55 Cancri Bc

Object

55 Cancri Bc

Star

55 Cancri B

Star type

M4V

Mass (M⊕)

≥5.3

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

0.3

Teq (K)

200

Period (days)

33.7

Distance (ly)

40.9

Gliese 12 b

Object

Gliese 12 b

Star

Gliese 12

Star type

M4V

Mass (M⊕)

0.71 or 0.95

Radius (R⊕)

0.904+0.037−0.034

Density (g/cm3)

5.3 or 7.1

Flux (F⊕)

1.6±0.2

Teq (K)

315

Period (days)

12.7

Distance (ly)

39.7

Refs/notes

Might resemble Venus and be unhabitable

Gliese 163 c

Object

Gliese 163 c

Star

Gliese 163

Star type

M3V

Mass (M⊕)

≥6.80

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

1.25

Teq (K)

277

Period (days)

25.6

Distance (ly)

Gliese 180 d

Object

Gliese 180 d

Star

Gliese 180

Star type

M2V

Mass (M⊕)

≥7.56

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

0.26

Teq (K)

—

Period (days)

106.3

Distance (ly)

Gliese 251 c

Object

Gliese 251 c

Star

Gliese 251

Star type

M3V

Mass (M⊕)

≥3.84

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

—

Teq (K)

—

Period (days)

53.6

Distance (ly)

18.2

Gliese 357 d

Object

Gliese 357 d

Star

Gliese 357

Star type

M2V

Mass (M⊕)

≥6.10

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

0.38

Teq (K)

200

Period (days)

55.7

Distance (ly)

Gliese 433 d

Object

Gliese 433 d

Star

Gliese 433

Star type

M2V

Mass (M⊕)

≥5.22

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

1.06

Teq (K)

—

Period (days)

36.1

Distance (ly)

29.6

Gliese 514 b

Object

Gliese 514 b

Star

Gliese 514

Star type

M1V

Mass (M⊕)

≥5.20

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

0.28+0.51−0.166

Teq (K)

202

Period (days)

140.4

Distance (ly)

Refs/notes

Highly eccentric

Gliese 555 b

Object

Gliese 555 b

Star

Gliese 555

Star type

M4V

Mass (M⊕)

≥5.46

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

0.5

Teq (K)

214

Period (days)

36.2

Distance (ly)

20.4

Refs/notes

Probably a mini-Neptune or an ocean planet

Gliese 625 b

Object

Gliese 625 b

Star

Gliese 625

Star type

M2V

Mass (M⊕)

≥2.82

Radius (R⊕)

—

Density (g/cm3)

—

Teq (K)

—

Period (days)

14.628

Distance (ly)

21.1

Refs/notes

Only in HZ if very optimistic models used

Gliese 667 Cc

Object

Gliese 667 Cc

Star

Gliese 667 C

Star type

M1V

Mass (M⊕)

≥3.81

Radius (R⊕)

~1.54

Density (g/cm3)

—

Flux (F⊕)

0.88

Teq (K)

277

Period (days)

28.1

Distance (ly)

23.62

Gliese 1002 b

Object

Gliese 1002 b

Star

Gliese 1002

Star type

M5V

Mass (M⊕)

≥1.08

Radius (R⊕)

~1.03

Density (g/cm3)

—

Flux (F⊕)

0.67

Teq (K)

231

Period (days)

10.3

Distance (ly)

15.8

Gliese 1002 c

Object

Gliese 1002 c

Star

Gliese 1002

Star type

M5V

Mass (M⊕)

≥1.36

Radius (R⊕)

1.1

Density (g/cm3)

—

Flux (F⊕)

0.26

Teq (K)

182

Period (days)

21.2

Distance (ly)

15.8

GJ 1061 c

Object

GJ 1061 c

Star

GJ 1061

Star type

M5V

Mass (M⊕)

1.81+0.13−0.11

Radius (R⊕)

~1.18

Density (g/cm3)

—

Flux (F⊕)

1.45

Teq (K)

275

Period (days)

6.7

Distance (ly)

GJ 1061 d

Object

GJ 1061 d

Star

GJ 1061

Star type

M5V

Mass (M⊕)

1.67+0.17−0.16

Radius (R⊕)

~1.16

Density (g/cm3)

—

Flux (F⊕)

0.69

Teq (K)

218

Period (days)

13.0

Distance (ly)

GJ 3293 d

Object

GJ 3293 d

Star

GJ 3293

Star type

M2V

Mass (M⊕)

≥7.60

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

0.59

Teq (K)

223

Period (days)

48.1

Distance (ly)

GJ 3998 d

Object

GJ 3998 d

Star

GJ 3998

Star type

M1V

Mass (M⊕)

≥6.07

Radius (R⊕)

—

Density (g/cm3)

—

Teq (K)

—

Period (days)

41.8

Distance (ly)

HD 20794 d

Object

HD 20794 d

Star

HD 20794

Star type

G8V

Mass (M⊕)

≥5.82

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

—

Teq (K)

—

Period (days)

647.6

Distance (ly)

19.7

Refs/notes

Highly eccentric orbit and could also be a mini-Neptune

HD 110067 g

Object

HD 110067 g

Star

HD 110067

Star type

K0V

Mass (M⊕)

8.64

Radius (R⊕)

~2.5

Density (g/cm3)

—

Flux (F⊕)

—

Teq (K)

300~350

Distance (ly)

105

Refs/notes

Maybe too hot

HD 216520 c

Object

HD 216520 c

Star

HD 216520

Star type

K0V

Mass (M⊕)

≥9.44

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

1.28

Teq (K)

—

Period (days)

154.4

Distance (ly)

HIP 38594 b

Object

HIP 38594 b

Star

HIP 38594

Star type

M0V

Mass (M⊕)

≥8.10

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

1.34

Teq (K)

—

Period (days)

60.7

Distance (ly)

K2-3d

Object

K2-3d

Star

K2-3

Star type

K9V

Mass (M⊕)

1.6

Radius (R⊕)

1.46

Density (g/cm3)

2.1

Flux (F⊕)

—

Teq (K)

305

Period (days)

44.3

Distance (ly)

143.4

K2-9b

Object

K2-9b

Star

K2-9

Star type

M2V

Mass (M⊕)

2.25

Density (g/cm3)

—

Flux (F⊕)

—

K2-18b

Object

K2-18b

Star

K2-18

Star type

M3V

Mass (M⊕)

8.6

Radius (R⊕)

~2.6

Density (g/cm3)

—

Flux (F⊕)

—

Teq (K)

265

Period (days)

32.9

Distance (ly)

124

K2-72e

Object

K2-72e

Star

K2-72

Star type

M2V

Mass (M⊕)

~2.21

Radius (R⊕)

1.29

Density (g/cm3)

—

Flux (F⊕)

1.30

Teq (K)

261

Period (days)

24.2

Distance (ly)

217

K2-155d

Object

K2-155d

Star

K2-155

Star type

K?V

Mass (M⊕)

4.27

Radius (R⊕)

1.64

Density (g/cm3)

—

Flux (F⊕)

—

Period (days)

40.6

Distance (ly)

290

K2-288Bb

Object

K2-288Bb

Star

K2-288 B

Star type

M3V

Mass (M⊕)

4.27

Radius (R⊕)

1.91

Density (g/cm3)

—

Flux (F⊕)

0.44

Teq (K)

207

Period (days)

31.4

Distance (ly)

214

K2-332b

Object

K2-332b

Star

K2-332

Star type

M3.5V

Mass (M⊕)

—

Radius (R⊕)

2.20

Density (g/cm3)

—

Flux (F⊕)

1.17

Teq (K)

—

Period (days)

17.7

Distance (ly)

402

Kepler-22b

Object

Kepler-22b

Star

Kepler-22

Star type

G5V

Mass (M⊕)

~9.1 or ~35

Radius (R⊕)

2.38

Density (g/cm3)

—

Flux (F⊕)

1.10

Teq (K)

261

Period (days)

289.9

Distance (ly)

635

Kepler-51 e

Object

Kepler-51 e

Star

Kepler-51

Star type

G4V

Mass (M⊕)

1.6-6.1

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

—

Period (days)

256.9

Distance (ly)

2,620

Kepler-62e

Object

Kepler-62e

Star

Kepler-62

Star type

K2V

Mass (M⊕)

4.5+14.2−2.6

Radius (R⊕)

1.61

Density (g/cm3)

—

Flux (F⊕)

1.15

Teq (K)

264

Period (days)

122.4

Distance (ly)

981

Kepler-62f

Object

Kepler-62f

Star

Kepler-62

Star type

K2V

Mass (M⊕)

2.8±0.4

Radius (R⊕)

1.41

Density (g/cm3)

—

Flux (F⊕)

0.41

Teq (K)

204

Period (days)

267.3

Distance (ly)

981

Kepler-69c

Object

Kepler-69c

Star

Kepler-69

Star type

G4V

Mass (M⊕)

2.7

Radius (R⊕)

2.15

Density (g/cm3)

—

Flux (F⊕)

2.36

Teq (K)

~325

Period (days)

242.5

Distance (ly)

2,390

Kepler-155c

Object

Kepler-155c

Star

Kepler-155

Star type

M0V

Mass (M⊕)

—

Radius (R⊕)

2.24

Density (g/cm3)

—

Flux (F⊕)

1.05

Teq (K)

—

Period (days)

52.7

Distance (ly)

957

Kepler-174d

Object

Kepler-174d

Star

Kepler-174

Star type

K3V

Mass (M⊕)

—

Radius (R⊕)

2.19

Density (g/cm3)

—

Flux (F⊕)

0.59

Teq (K)

206

Period (days)

247.4

Distance (ly)

1,254

Kepler-186f

Object

Kepler-186f

Star

Kepler-186

Star type

M1V

Mass (M⊕)

1.44+2.33−1.12

Radius (R⊕)

1.17

Density (g/cm3)

—

Flux (F⊕)

0.29

Teq (K)

188

Period (days)

129.9

Distance (ly)

579

Kepler-283c

Object

Kepler-283c

Star

Kepler-283

Star type

K5V

Mass (M⊕)

—

Radius (R⊕)

1.82

Density (g/cm3)

—

Flux (F⊕)

0.89

Teq (K)

248

Period (days)

92.7

Distance (ly)

1,526

Kepler-296e

Object

Kepler-296e

Star

Kepler-296

Star type

K7V

Mass (M⊕)

2.96

Radius (R⊕)

1.52

Density (g/cm3)

—

Flux (F⊕)

1.41

Teq (K)

276

Period (days)

34.1

Distance (ly)

737

Kepler-296f

Object

Kepler-296f

Star

Kepler-296

Star type

K7V

Mass (M⊕)

—

Radius (R⊕)

1.80

Density (g/cm3)

—

Flux (F⊕)

0.44

Teq (K)

225

Period (days)

63.3

Distance (ly)

737

Kepler-440b

Object

Kepler-440b

Star

Kepler-440

Star type

K6V

Mass (M⊕)

—

Radius (R⊕)

1.91

Density (g/cm3)

—

Flux (F⊕)

1.44

Teq (K)

273

Period (days)

101.1

Distance (ly)

981

Kepler-442b

Object

Kepler-442b

Star

Kepler-442

Star type

K5V

Mass (M⊕)

2.36+5.9−1.3

Radius (R⊕)

1.35

Density (g/cm3)

—

Flux (F⊕)

0.70

Teq (K)

233

Period (days)

112.3

Distance (ly)

1,193

Kepler-443b

Object

Kepler-443b

Star

Kepler-443

Star type

K3V

Mass (M⊕)

—

Radius (R⊕)

2.35

Density (g/cm3)

—

Flux (F⊕)

0.89

Teq (K)

247

Period (days)

177.7

Distance (ly)

2,615

Kepler-705b

Object

Kepler-705b

Star

Kepler-705

Star type

M?V

Mass (M⊕)

—

Radius (R⊕)

2.11

Density (g/cm3)

—

Flux (F⊕)

0.77

Teq (K)

243

Period (days)

56.1

Distance (ly)

903

Kepler-725 c

Object

Kepler-725 c

Star

Kepler-725

Star type

G9V

Mass (M⊕)

9.7

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

—

Period (days)

207.5

Distance (ly)

2,526

Kepler-1229b

Object

Kepler-1229b

Star

Kepler-1229

Star type

M?V

Mass (M⊕)

2.540

Radius (R⊕)

1.40

Density (g/cm3)

—

Flux (F⊕)

0.32

Teq (K)

213

Period (days)

86.8

Distance (ly)

865

Kepler-1410b

Object

Kepler-1410b

Star

Kepler-1410

Star type

K?V

Mass (M⊕)

—

Radius (R⊕)

1.78

Density (g/cm3)

—

Flux (F⊕)

1.07

Teq (K)

274

Period (days)

60.9

Distance (ly)

1196

Kepler-1455b

Object

Kepler-1455b

Star

Kepler-1455

Star type

K?V

Mass (M⊕)

—

Radius (R⊕)

2.10

Density (g/cm3)

—

Flux (F⊕)

1.30

Period (days)

49.3

Distance (ly)

1280

Kepler-1540b

Object

Kepler-1540b

Star

Kepler-1540

Star type

K?V

Mass (M⊕)

—

Radius (R⊕)

2.49

Density (g/cm3)

—

Flux (F⊕)

0.78

Teq (K)

250

Period (days)

125.4

Distance (ly)

799

Kepler-1544 b

Object

Kepler-1544 b

Star

Kepler-1544

Star type

K2V

Mass (M⊕)

—

Radius (R⊕)

1.78

Density (g/cm3)

—

Flux (F⊕)

0.84

Teq (K)

248

Period (days)

168.8

Distance (ly)

1092

Kepler-1606b

Object

Kepler-1606b

Star

Kepler-1606

Star type

G7V

Mass (M⊕)

—

Radius (R⊕)

2.07

Density (g/cm3)

—

Flux (F⊕)

1.64

Teq (K)

277

Period (days)

196.4

Distance (ly)

2710

Kepler-1649c

Object

Kepler-1649c

Star

Kepler-1649

Star type

M5V

Mass (M⊕)

1.20

Radius (R⊕)

1.06

Density (g/cm3)

—

Flux (F⊕)

0.75

Teq (K)

237

Period (days)

19.5

Distance (ly)

301

Kepler-1652b

Object

Kepler-1652b

Star

Kepler-1652

Star type

M?V

Mass (M⊕)

—

Radius (R⊕)

1.60

Density (g/cm3)

—

Flux (F⊕)

0.84

Teq (K)

244

Period (days)

38.1

Distance (ly)

822

Kepler-1653b

Object

Kepler-1653b

Star

Kepler-1653

Star type

K?V

Mass (M⊕)

—

Radius (R⊕)

2.17

Density (g/cm3)

—

Flux (F⊕)

1.04

Teq (K)

258

Period (days)

140.3

Distance (ly)

2461

Kepler-1701b

Object

Kepler-1701b

Star

Kepler-1701

Star type

K?V

Mass (M⊕)

—

Radius (R⊕)

2.22

Density (g/cm3)

—

Flux (F⊕)

1.42

Teq (K)

275

Period (days)

169.1

Distance (ly)

1904

LHS 1140 b

Object

LHS 1140 b

Star

LHS 1140

Star type

M4V

Mass (M⊕)

5.60

Radius (R⊕)

1.73

Density (g/cm3)

5.9±0.3

Flux (F⊕)

0.43

Teq (K)

226

Period (days)

24.7

Distance (ly)

Refs/notes

Likely an ocean world with or without an atmosphere

LP 890-9 c

Object

LP 890-9 c

Star

LP 890-9

Star type

M6V

Mass (M⊕)

—

Radius (R⊕)

1.37

Density (g/cm3)

—

Flux (F⊕)

0.91

Teq (K)

272

Period (days)

8.46

Distance (ly)

105

Luyten b

Object

Luyten b

Star

Luyten's Star

Star type

M3V

Mass (M⊕)

≥2.89

Radius (R⊕)

~1.35

Density (g/cm3)

—

Flux (F⊕)

1.06

Teq (K)

258

Period (days)

18.65

Distance (ly)

12.3

Proxima Centauri b

Object

Proxima Centauri b

Star

Proxima Centauri

Star type

M5V

Mass (M⊕)

≥1.07

Radius (R⊕)

1.17±0.23

Density (g/cm3)

—

Flux (F⊕)

0.70

Teq (K)

228

Period (days)

11.186

Distance (ly)

4.25

Refs/notes

Affected by stellar flare, possibly affected by high radiation flux

Teegarden's Star b

Object

Teegarden's Star b

Star

Teegarden's Star

Star type

M7V

Mass (M⊕)

≥1.05

Radius (R⊕)

~1.02

Density (g/cm3)

—

Flux (F⊕)

1.15

Teq (K)

264

Period (days)

4.91

Distance (ly)

12.5

Refs/notes

Radius is estimated

Teegarden's Star c

Object

Teegarden's Star c

Star

Teegarden's Star

Star type

M7V

Mass (M⊕)

≥1.11

Radius (R⊕)

~1.04

Density (g/cm3)

—

Flux (F⊕)

0.37

Teq (K)

199

Period (days)

11.4

Distance (ly)

12.5

TOI-175 f (L 98-59 f)

Object

TOI-175 f (L 98-59 f)

Star

TOI-175 (L 98-59)

Star type

M3V

Mass (M⊕)

≥2.97

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

Teq (K)

289

Period (days)

23.07

Distance (ly)

34.6

TOI-700 d

Object

TOI-700 d

Star

TOI-700

Star type

M2V

Mass (M⊕)

~1.72

Radius (R⊕)

1.14

Density (g/cm3)

—

Flux (F⊕)

0.87

Teq (K)

246

Period (days)

37.4

Distance (ly)

101

TOI-700 e

Object

TOI-700 e

Star

TOI-700

Star type

M2V

Mass (M⊕)

0.82

Radius (R⊕)

0.95

Density (g/cm3)

—

Flux (F⊕)

1.27

Teq (K)

273

Period (days)

27.8

Distance (ly)

101

TOI-715 b

Object

TOI-715 b

Star

TOI-715

Star type

M4V

Mass (M⊕)

3.02

Radius (R⊕)

1.55

Density (g/cm3)

—

Flux (F⊕)

0.67

Teq (K)

234

Period (days)

19.29

Distance (ly)

137

TOI-1452 b

Object

TOI-1452 b

Star

TOI-1452

Star type

M4V

Mass (M⊕)

4.82

Radius (R⊕)

1.67

Density (g/cm3)

—

Flux (F⊕)

—

Teq (K)

290~320

Period (days)

Distance (ly)

100

TOI-2257 b

Object

TOI-2257 b

Star

TOI-2257

Star type

M3V

Mass (M⊕)

5.712+4.288−2.311

Radius (R⊕)

2.20

Density (g/cm3)

—

Flux (F⊕)

0.57+1.68−0.31

Teq (K)

256+61−17

Period (days)

35.2

Distance (ly)

188

Refs/notes

Highly eccentric

TOI-2267 Ac

Object

TOI-2267 Ac

Star

TOI-2267A

Star type

M5V

Density (g/cm3)

—

Flux (F⊕)

—

Teq (K)

300~

Distance (ly)

190

Refs/notes

Maybe too hot

TRAPPIST-1d

Object

TRAPPIST-1d

Star

TRAPPIST-1

Star type

M8V

Mass (M⊕)

0.41

Radius (R⊕)

0.79

Density (g/cm3)

4.34

Flux (F⊕)

—

Teq (K)

286

Period (days)

4.09

Distance (ly)

Refs/notes

May be uninhabitable since JWST failed to detect an Earth-like atmosphere

TRAPPIST-1e

Object

TRAPPIST-1e

Star

TRAPPIST-1

Star type

M8V

Mass (M⊕)

0.69

Radius (R⊕)

0.92

Density (g/cm3)

5.65

Flux (F⊕)

0.65

Teq (K)

230

Period (days)

6.1

Distance (ly)

Refs/notes

Confirmed to be rocky. Possibly has an atmosphere.

TRAPPIST-1f

Object

TRAPPIST-1f

Star

TRAPPIST-1

Star type

M8V

Mass (M⊕)

1.04

Radius (R⊕)

1.04

Density (g/cm3)

3.3 ± 0.9

Flux (F⊕)

0.37

Teq (K)

200

Period (days)

9.2

Distance (ly)

Refs/notes

Confirmed to be rocky

TRAPPIST-1g

Object

TRAPPIST-1g

Star

TRAPPIST-1

Star type

M8V

Mass (M⊕)

1.32

Radius (R⊕)

1.13

Density (g/cm3)

4.186

Flux (F⊕)

0.25

Teq (K)

182

Period (days)

12.4

Distance (ly)

Refs/notes

Confirmed to be rocky

Ross 128 b

Object

Ross 128 b

Star

Ross 128

Star type

M4V

Mass (M⊕)

≥1.40

Radius (R⊕)

~1.80

Density (g/cm3)

—

Flux (F⊕)

1.48

Teq (K)

280

Period (days)

9.87

Distance (ly)

11.0

Ross 508 b

Object

Ross 508 b

Star

Ross 508

Star type

M4V

Mass (M⊕)

≥4.00

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

1.32

Teq (K)

—

Period (days)

10.8

Distance (ly)

Wolf 1069 b

Object

Wolf 1069 b

Star

Wolf 1069

Star type

M5V

Mass (M⊕)

≥1.26

Radius (R⊕)

~1.08

Density (g/cm3)

—

Flux (F⊕)

0.65

Teq (K)

250

Period (days)

15.6

Distance (ly)

31.2

Wolf 1061c

Object

Wolf 1061c

Star

Wolf 1061

Star type

M3V

Mass (M⊕)

≥3.41

Radius (R⊕)

~1.60

Density (g/cm3)

—

Flux (F⊕)

1.30

Teq (K)

271

Period (days)

17.9

Distance (ly)

13.8

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	1.00	1.00	5.514	1.00	255	365.25	0	Only planet confirmed to support life
Venus(reported for reference)	Sun	G2V	0.815	0.950	5.243	1.911	244.261	224.70	0.0000042
Mars(reported for reference)	Sun	G2V	0.107	0.533	3.934	0.431	209.8	686.98	0.0000058–0.000042
55 Cancri Bc	55 Cancri B	M4V	≥5.3	—	—	0.3	200	33.7	40.9
Gliese 12 b	Gliese 12	M4V	0.71 or 0.95	0.904+0.037−0.034	5.3 or 7.1	1.6±0.2	315	12.7	39.7	Might resemble Venus and be unhabitable
Gliese 163 c	Gliese 163	M3V	≥6.80	—	—	1.25	277	25.6	49
Gliese 180 d	Gliese 180	M2V	≥7.56	—	—	0.26	—	106.3	39
Gliese 251 c	Gliese 251	M3V	≥3.84	—	—	—	—	53.6	18.2
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
Gliese 514 b	Gliese 514	M1V	≥5.20	—	—	0.28+0.51−0.166	202	140.4	25	Highly eccentric
Gliese 555 b	Gliese 555	M4V	≥5.46	—	—	0.5	214	36.2	20.4	Probably a mini-Neptune or an ocean planet
Gliese 625 b	Gliese 625	M2V	≥2.82	—	—		—	14.628	21.1	Only in HZ if very optimistic models used
Gliese 667 Cc	Gliese 667 C	M1V	≥3.81	~1.54	—	0.88	277	28.1	23.62
Gliese 1002 b	Gliese 1002	M5V	≥1.08	~1.03	—	0.67	231	10.3	15.8
Gliese 1002 c	Gliese 1002	M5V	≥1.36	1.1	—	0.26	182	21.2	15.8
GJ 1061 c	GJ 1061	M5V	1.81+0.13−0.11	~1.18	—	1.45	275	6.7	12
GJ 1061 d	GJ 1061	M5V	1.67+0.17−0.16	~1.16	—	0.69	218	13.0	12
GJ 3293 d	GJ 3293	M2V	≥7.60	—	—	0.59	223	48.1	66
GJ 3998 d	GJ 3998	M1V	≥6.07	—	—		—	41.8	58
HD 20794 d	HD 20794	G8V	≥5.82	—	—	—	—	647.6	19.7	Highly eccentric orbit and could also be a mini-Neptune
HD 110067 g	HD 110067	K0V	8.64	~2.5	—	—	300~350		105	Maybe too hot
HD 216520 c	HD 216520	K0V	≥9.44	—	—	1.28	—	154.4	64
HIP 38594 b	HIP 38594	M0V	≥8.10	—	—	1.34	—	60.7	58
K2-3d	K2-3	K9V	1.6	1.46	2.1	—	305	44.3	143.4
K2-9b	K2-9	M2V	2.25		—	—
K2-18b	K2-18	M3V	8.6	~2.6	—	—	265	32.9	124
K2-72e	K2-72	M2V	~2.21	1.29	—	1.30	261	24.2	217
K2-155d	K2-155	K?V	4.27	1.64	—	—		40.6	290
K2-288Bb	K2-288 B	M3V	4.27	1.91	—	0.44	207	31.4	214
K2-332b	K2-332	M3.5V	—	2.20	—	1.17	—	17.7	402
Kepler-22b	Kepler-22	G5V	~9.1 or ~35	2.38	—	1.10	261	289.9	635
Kepler-51 e	Kepler-51	G4V	1.6-6.1	—	—	—		256.9	2,620
Kepler-62e	Kepler-62	K2V	4.5+14.2−2.6	1.61	—	1.15	264	122.4	981
Kepler-62f	Kepler-62	K2V	2.8±0.4	1.41	—	0.41	204	267.3	981
Kepler-69c	Kepler-69	G4V	2.7	2.15	—	2.36	~325	242.5	2,390
Kepler-155c	Kepler-155	M0V	—	2.24	—	1.05	—	52.7	957
Kepler-174d	Kepler-174	K3V	—	2.19	—	0.59	206	247.4	1,254
Kepler-186f	Kepler-186	M1V	1.44+2.33−1.12	1.17	—	0.29	188	129.9	579
Kepler-283c	Kepler-283	K5V	—	1.82	—	0.89	248	92.7	1,526
Kepler-296e	Kepler-296	K7V	2.96	1.52	—	1.41	276	34.1	737
Kepler-296f	Kepler-296	K7V	—	1.80	—	0.44	225	63.3	737
Kepler-440b	Kepler-440	K6V	—	1.91	—	1.44	273	101.1	981
Kepler-442b	Kepler-442	K5V	2.36+5.9−1.3	1.35	—	0.70	233	112.3	1,193
Kepler-443b	Kepler-443	K3V	—	2.35	—	0.89	247	177.7	2,615
Kepler-705b	Kepler-705	M?V	—	2.11	—	0.77	243	56.1	903
Kepler-725 c	Kepler-725	G9V	9.7	—	—	—		207.5	2,526
Kepler-1229b	Kepler-1229	M?V	2.540	1.40	—	0.32	213	86.8	865
Kepler-1410b	Kepler-1410	K?V	—	1.78	—	1.07	274	60.9	1196

· Unconfirmed Habitable Exoplanets

Earth(reported for reference)

Object

Earth(reported for reference)

Star

Sun

Star type

G2V

Mass (M⊕)

1.00

Radius (R⊕)

1.00

Density (g/cm3)

5.514

Flux (F⊕)

1.00

Teq (K)

255

Period (days)

365.25

Distance (ly)

Refs/notes

Only planet confirmed to support life

Venus(reported for reference)

Object

Venus(reported for reference)

Star

Sun

Star type

G2V

Mass (M⊕)

0.815

Radius (R⊕)

0.950

Density (g/cm3)

5.243

Flux (F⊕)

1.911

Teq (K)

244.261

Period (days)

224.70

Distance (ly)

0.0000042

Mars(reported for reference)

Object

Mars(reported for reference)

Star

Sun

Star type

G2V

Mass (M⊕)

0.107

Radius (R⊕)

0.533

Density (g/cm3)

3.934

Flux (F⊕)

0.431

Teq (K)

209.8

Period (days)

686.98

Distance (ly)

0.0000058–0.000042

Gliese 180 c

Object

Gliese 180 c

Star

Gliese 180

Star type

M2V

Mass (M⊕)

≥6.40

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

0.78

Teq (K)

239

Period (days)

24.3

Distance (ly)

Gliese 581d

Object

Gliese 581d

Star

Gliese 581

Star type

M3V

Mass (M⊕)

6.9

Radius (R⊕)

2.2

Density (g/cm3)

—

Flux (F⊕)

—

Period (days)

66.87

Distance (ly)

20.5

Refs/notes

May be a stellar activity

Gliese 581g

Object

Gliese 581g

Star

Gliese 581

Star type

M3V

Mass (M⊕)

3.1

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

—

Teq (K)

242-260

Period (days)

36.6

Distance (ly)

20.5

Refs/notes

May be a stellar activity

Gliese 667 Ce

Object

Gliese 667 Ce

Star

Gliese 667 C

Star type

M1V

Mass (M⊕)

—

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

—

Period (days)

—

Distance (ly)

23.62

Refs/notes

May be a stellar activity

Gliese 667 Cf

Object

Gliese 667 Cf

Star

Gliese 667 C

Star type

M1V

Mass (M⊕)

—

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

—

Period (days)

—

Distance (ly)

23.62

Refs/notes

May be a stellar activity

HD 40307 g

Object

HD 40307 g

Star

HD 40307

Star type

K2V

Mass (M⊕)

≥7.09

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

0.67

Teq (K)

226

Period (days)

197.8

Distance (ly)

HD 85512 b

Object

HD 85512 b

Star

HD 85512

Star type

K6V

Mass (M⊕)

—

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

—

Period (days)

—

Distance (ly)

36.8

Refs/notes

May be a stellar activity

HD 219134 g

Object

HD 219134 g

Star

HD 219134

Star type

K3V

Mass (M⊕)

~10

Radius (R⊕)

2.4

Density (g/cm3)

—

Flux (F⊕)

—

Teq (K)

297

Period (days)

94.2

Distance (ly)

21.34

Refs/notes

May be too massive. Source: Stellar Catalog

Kepler-452b

Object

Kepler-452b

Star

Kepler-452

Star type

G2V

Mass (M⊕)

Radius (R⊕)

1.63

Density (g/cm3)

—

Flux (F⊕)

1.11

Teq (K)

261

Period (days)

384.8

Distance (ly)

1799

KOI-4878b

Object

KOI-4878b

Star

KOI-4878

Star type

F8V

Mass (M⊕)

~1.9+1.1−0.5

Radius (R⊕)

1.05

Density (g/cm3)

—

Flux (F⊕)

1.04+1.1−0.34

Teq (K)

257

Period (days)

449.0

Distance (ly)

1,075

KOI-4902.01

Object

KOI-4902.01

Star

KOI-4902

Star type

K3III or K3V

Mass (M⊕)

6.5

Radius (R⊕)

1.8

Teq (K)

196

Period (days)

1240~2480

Distance (ly)

10,297

Refs/notes

Habitable planet orbiting an Orange Giant

KOI-5715.01

Object

KOI-5715.01

Star

KOI-5715

Star type

K3V

Mass (M⊕)

—

Radius (R⊕)

1.93

Period (days)

190

Distance (ly)

2,964

Refs/notes

Potential Superhabitable world

KOI-5878.01

Object

KOI-5878.01

Star

KOI-5878

Star type

K3III or K3V-IV

Mass (M⊕)

—

Radius (R⊕)

1.88

Period (days)

475~1388

Distance (ly)

13,020

Refs/notes

Habitable planet orbiting an Orange Giant

Lacaille 9352 d

Object

Lacaille 9352 d

Star

Lacaille 9352

Star type

M0V

Mass (M⊕)

≥8.3

Radius (R⊕)

—

Density (g/cm3)

—

Period (days)

50.7

Distance (ly)

10.7

LTT 1445 Ad

Object

LTT 1445 Ad

Star

LTT 1445A

Star type

M2V

Mass (M⊕)

≥2.72

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

—

Period (days)

24.3

Distance (ly)

22.4

Tau Ceti e

Object

Tau Ceti e

Star

Tau Ceti

Star type

G8V

Mass (M⊕)

3.93

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

—

Teq (K)

300~350

Period (days)

162.8~

Distance (ly)

11.9

Refs/notes

May be too hot

Tau Ceti f

Object

Tau Ceti f

Star

Tau Ceti

Star type

G8V

Mass (M⊕)

≥3.93

Radius (R⊕)

—

Density (g/cm3)

—

Flux (F⊕)

0.27

Teq (K)

190

Period (days)

642

Distance (ly)

11.9

Refs/notes

Has been only in HZ for less than 1 Gya

TOI-715.02

Object

TOI-715.02

Star

TOI-715

Star type

M4V

Radius (R⊕)

1.066±0.092

Flux (F⊕)

0.48+0.12−0.17

Period (days)

25.6

Distance (ly)

137

WD 1054–226 b

Object

WD 1054–226 b

Star

WD 1054–226

Star type

DAZ

Mass (M⊕)

Radius (R⊕)

—

Density (g/cm3)

—

Period (days)

1.04

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	1.00	1.00	5.514	1.00	255	365.25	0	Only planet confirmed to support life
Venus(reported for reference)	Sun	G2V	0.815	0.950	5.243	1.911	244.261	224.70	0.0000042
Mars(reported for reference)	Sun	G2V	0.107	0.533	3.934	0.431	209.8	686.98	0.0000058–0.000042
Gliese 180 c	Gliese 180	M2V	≥6.40	—	—	0.78	239	24.3	39
Gliese 581d	Gliese 581	M3V	6.9	2.2	—	—		66.87	20.5	May be a stellar activity
Gliese 581g	Gliese 581	M3V	3.1	—	—	—	242-260	36.6	20.5	May be a stellar activity
Gliese 667 Ce	Gliese 667 C	M1V	—	—	—	—		—	23.62	May be a stellar activity
Gliese 667 Cf	Gliese 667 C	M1V	—	—	—	—		—	23.62	May be a stellar activity
HD 40307 g	HD 40307	K2V	≥7.09	—	—	0.67	226	197.8	42
HD 85512 b	HD 85512	K6V	—	—	—	—		—	36.8	May be a stellar activity
HD 219134 g	HD 219134	K3V	~10	2.4	—	—	297	94.2	21.34	May be too massive. Source: Stellar Catalog
Kepler-452b	Kepler-452	G2V	~5	1.63	—	1.11	261	384.8	1799
KOI-4878b	KOI-4878	F8V	~1.9+1.1−0.5	1.05	—	1.04+1.1−0.34	257	449.0	1,075
KOI-4902.01	KOI-4902	K3III or K3V	6.5	1.8			196	1240~2480	10,297	Habitable planet orbiting an Orange Giant
KOI-5715.01	KOI-5715	K3V	—	1.93				190	2,964	Potential Superhabitable world
KOI-5878.01	KOI-5878	K3III or K3V-IV	—	1.88				475~1388	13,020	Habitable planet orbiting an Orange Giant
Lacaille 9352 d	Lacaille 9352	M0V	≥8.3	—	—			50.7	10.7
LTT 1445 Ad	LTT 1445A	M2V	≥2.72	—	—	—		24.3	22.4
Tau Ceti e	Tau Ceti	G8V	3.93	—	—	—	300~350	162.8~	11.9	May be too hot
Tau Ceti f	Tau Ceti	G8V	≥3.93	—	—	0.27	190	642	11.9	Has been only in HZ for less than 1 Gya
TOI-715.02	TOI-715	M4V		1.066±0.092		0.48+0.12−0.17		25.6	137
WD 1054–226 b	WD 1054–226	DAZ	~1	—	—			1.04	118	The surface temperature might be high enough for habitability

References

The existence of Tau Ceti e is dubious, see
Planetary Habitability Laboratory
https://phl.upr.edu/hwc
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
Searching for Habitable Worlds: An Introduction
https://books.google.com/books?id=bD9iDwAAQBAJ&pg=PP1
The Astrophysical Journal
https://doi.org/10.3847%2F1538-4357%2F834%2F1%2F17
nssdc.gsfc.nasa.gov/
https://web.archive.org/web/20180511140851/https://nssdc.gsfc.nasa.gov/planetary/factsheet/venusfact.html
nssdc.gsfc.nasa.gov/
https://nssdc.gsfc.nasa.gov/planetary/factsheet/marsfact.html
arXiv
https://arxiv.org/abs/2510.11523
arXiv
https://arxiv.org/abs/2506.20561
Monthly Notices of the Royal Astronomical Society
https://doi.org/10.1093%2Fmnras%2Fstaf1703
Monthly Notices of the Royal Astronomical Society
https://arxiv.org/abs/2405.13118
The Astronomical Journal
https://doi.org/10.3847%2F1538-3881%2Fae0e20
Astronomy & Astrophysics
https://arxiv.org/abs/2204.06376
exoplanetkyoto.org
http://www.exoplanetkyoto.org/exohtml/HN_Lib_b.html
Astronomy & Astrophysics
https://arxiv.org/abs/2302.10528
Astronomy and Astrophysics
https://www.aanda.org/articles/aa/full_html/2017/09/aa30957-17/aa30957-17.html
drewexmachina.com
https://www.drewexmachina.com/2017/05/22/habitable-planet-reality-check-is-gj-625b-a-super-earth-or-a-super-venus/
hzgallery.org
http://hzgallery.org/3417_2.png
Monthly Notices of the Royal Astronomical Society
https://doi.org/10.1093%2Fmnras%2Fstt2148
Astronomy & Astrophysics
https://doi.org/10.1051%2F0004-6361%2F202244991
Exoplanet Exploration: Planets Beyond our Solar System
https://exoplanets.nasa.gov/exoplanet-catalog/8721/gj-1002-c/
Astronomy & Astrophysics
https://arxiv.org/abs/2504.10926
Astronomy & Astrophysics
https://doi.org/10.1051%2F0004-6361%2F202452630
Extrasolar Planets Encyclopaedia
http://exoplanet.eu/catalog/82_eri_d--888/
Astronomy & Astrophysics
https://doi.org/10.1051%2F0004-6361%2F202451769
Exoplanet Exploration: Planets Beyond our Solar System
https://exoplanets.nasa.gov/exoplanet-catalog/3343/k2-72-e/
"K2-288 B b - NASA Science"
https://science.nasa.gov/exoplanet-catalog/k2-288-b-b/
NASA Exoplanet Archive
http://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=Kepler-22%20b&type=CONFIRMED_PLANET
NASA Exoplanet Archive
http://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=Kepler-62%20e&type=CONFIRMED_PLANET
NASA Exoplanet Archive
http://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=Kepler-62%20f&type=CONFIRMED_PLANET
NASA Exoplanet Archive
http://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=Kepler-296%20e&type=CONFIRMED_PLANET
The Astrophysical Journal
https://arxiv.org/abs/1505.01845
NASA Exoplanet Archive
http://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=Kepler-296%20f&type=CONFIRMED_PLANET
Extrasolar Planets Encyclopaedia
http://exoplanet.eu/catalog/kepler_1455_b--2986/
"Exoplanet-catalog-Exoplanet exploration-Kepler-1606b"
https://exoplanets.nasa.gov/exoplanet-catalog/2252/kepler-1606-b/
Exoplanet Exploration: Planets Beyond our Solar System
https://exoplanets.nasa.gov/news/1637/earth-size-habitable-zone-planet-found-hidden-in-early-nasa-kepler-data/
"Exoplanet catalog-Exoplanet exploration-Kepler-1701b"
https://exoplanets.nasa.gov/exoplanet-catalog/7742/kepler-1701-b/
The Astrophysical Journal
https://doi.org/10.3847%2F2041-8213%2Fad5afa
Astronomy & Astrophysics
https://arxiv.org/abs/2209.02831
Astronomy and Astrophysics
https://www.aanda.org/articles/aa/full_html/2017/06/aa30153-16/aa30153-16.html
Astronomy & Astrophysics
https://www.aanda.org/articles/aa/abs/2022/02/aa42337-21/aa42337-21.html
Nature
https://www.nature.com/articles/nature19106
Astronomy & Astrophysics
https://www.aanda.org/articles/aa/pdf/forth/aa35460-19.pdf
Exoplanet Exploration: Planets Beyond our Solar System
https://exoplanets.nasa.gov/exoplanet-catalog/7423/teegardens-star-b/
www.eso.org
https://www.eso.org/public/images/eso2112b/
arXiv
https://arxiv.org/abs/2507.06413
exoplanetarchive.ipac.caltech.edu
https://exoplanetarchive.ipac.caltech.edu/overview/TOI-700
SciTechDaily
https://scitechdaily.com/nasa-planet-hunter-discovers-second-habitable-earth-size-world-in-toi-700-system/
Monthly Notices of the Royal Astronomical Society
https://doi.org/10.1093%2Fmnras%2Fstad1439
"TOI-715 b - NASA Science"
https://science.nasa.gov/exoplanet-catalog/toi-715-b/
Astronomy & Astrophysics
https://arxiv.org/abs/2111.01749
Monthly Notices of the Royal Astronomical Society
https://doi.org/10.1093%2Fmnras%2Fsty051
Astronomy & Astrophysics
https://arxiv.org/abs/1802.01377
The Astrophysical Journal Letters
https://doi.org/10.3847%2F2041-8213%2Fadf62e
Astronomy
https://web.archive.org/web/20180221031045/http://www2.astronomy.com/news/2017/11/a-potentially-habitable-planet-11-light-years-away
Publications of the Astronomical Society of Japan
https://arxiv.org/abs/2205.11986
Astronomy & Astrophysics
https://arxiv.org/abs/2301.02477
The Astrophysical Journal Supplement Series
https://doi.org/10.3847%2F1538-4365%2Fab5e7c
Astronomy & Astrophysics
https://arxiv.org/abs/1510.06446
NASA Exoplanet Archive
http://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=Kepler-452%20b&type=CONFIRMED%5fPLANET
NASA Exoplanet Archive
https://exoplanetarchive.ipac.caltech.edu/docs/kepler452b.html
The Astronomical Journal
https://doi.org/10.3847%2F1538-3881%2Faabae3
The Astronomical Journal
https://doi.org/10.3847%2F1538-3881%2Faafb79
Extrasolar Planets Encyclopaedia
http://exoplanet.eu/catalog/koi_4878_b--5236/
NASA Exoplanet Archive
https://exoplanetarchive.ipac.caltech.edu/overview/KOI-4878.01#planet_KOI-4878-01
Science
https://arxiv.org/abs/2006.16372
Astronomy and Astrophysics
https://arxiv.org/abs/2210.09713
Space.com
https://www.space.com/29191-exoplanets-tau-ceti-alien-life.html
The Astrophysical Journal
https://iopscience.iop.org/article/10.1088/0004-637X/803/2/90
Astronomy & Astrophysics
https://arxiv.org/abs/2106.07301
ras.ac.uk
https://ras.ac.uk/news-and-press/research-highlights/planetary-bodies-observed-habitable-zone-dead-star
The Astrophysical Journal
https://doi.org/10.3847%2F1538-4357%2Fad9827
Science
https://arxiv.org/abs/1407.1049
Astronomy & Astrophysics
https://arxiv.org/abs/1512.00878
The Astronomical Journal
https://doi.org/10.3847%2F1538-3881%2Fac52ed
The Astrophysical Journal
https://arxiv.org/abs/1409.0021
The Astrophysical Journal
https://arxiv.org/abs/1505.02778
The Astronomical Journal
https://doi.org/10.3847%2F1538-3881%2Fabec89
The Astronomical Journal
https://doi.org/10.3847%2F1538-3881%2Fada77a
Astronomy & Astrophysics
https://arxiv.org/abs/2206.07552
Astronomy and Astrophysics
https://arxiv.org/abs/2507.07514
"Two Nearby Habitable Worlds?"
https://web.archive.org/web/20210308051741/http://phl.upr.edu/press-releases/twonearbyhabitableworlds
NASA Exoplanet Archive
https://exoplanetarchive.ipac.caltech.edu/overview/Kepler-1638
The Astrophysical Journal
https://doi.org/10.3847%2F1538-4357%2Faada83
NASA Exoplanet Archive
http://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=KOI-1686.01
The Astrophysical Journal
https://doi.org/10.3847%2F1538-4357%2Fadf207