GJ 3998: planetary system

M1 · 59.2 ly away · 3 confirmed planets.

Host star
Temperature3726 K
Radius0.50 R☉
Mass0.52 M☉
Distance59.2 ly
Brightnessmag 10.8
Spectral typeM1
Planets in this system
GJ 3998 b
Rocky world · ESI 0.37
1.39 R⊕ · 2.7 days year
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GJ 3998 c
Sub-Neptune · ESI 0.52
2.50 R⊕ · 14 days year
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GJ 3998 d
Sub-Neptune · ESI 0.71
2.34 R⊕ · 42 days year
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Zoom out · nearby systems
GJ 121412.7 lyHD 14980617.2 lyHD 16492224.7 lyHD 14100427.8 lyGJ 64928.0 lyrho CrB28.3 lyHD 15666829.6 lyGJ 392929.6 ly
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Other worlds toward OphiuchusZoom out to the Milky Way