K2-138: planetary system

G8 V · 661 ly away · 6 confirmed planets.

Host star
Temperature5356 K
Radius0.86 R☉
Mass0.94 M☉
Distance661 ly
Brightnessmag 12.2
Spectral typeG8 V
Planets in this system
K2-138 b
Rocky world · ESI 0.22
1.51 R⊕ · 2.4 days year
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K2-138 c
Sub-Neptune · ESI 0.22
2.30 R⊕ · 3.6 days year
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K2-138 d
Sub-Neptune · ESI 0.26
2.39 R⊕ · 5.4 days year
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K2-138 e
Sub-Neptune · ESI 0.27
3.39 R⊕ · 8.3 days year
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K2-138 f
Sub-Neptune · ESI 0.23
2.90 R⊕ · 13 days year
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K2-138 g
Sub-Neptune · ESI 0.41
3.01 R⊕ · 42 days year
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Zoom out · nearby systems
K2-329125.1 lyWASP-6135.7 lyK2-367145.9 lyK2-69158.0 lyEPIC 206032309158.3 lyK2-54161.2 lyK2-70161.5 lyTOI-5293 A174.7 ly
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Other worlds toward AquariusZoom out to the Milky Way