G-type star · yellow dwarf, like our Sun
K2-138
5356 K
temperature
0.86 R☉
radius
0.94 M☉
mass
0.517 L☉
luminosity
How long to get there · 661 ly away
At light speed, about 661 years to reach this system.
See the full survival timeline (jet to folding spacetime) →Size vs the Sun
How it compares with our Sun
0.93×
as hot as the Sun
0.86×
the Sun's width
0.94×
the Sun's mass
0.52×
the Sun's light output
Worlds orbiting this star
- Explore →K2-138 bRocky world · ESI 0.221.51 R⊕ · 2.4 days year
- Explore →K2-138 cSub-Neptune · ESI 0.222.30 R⊕ · 3.6 days year
- Explore →K2-138 dSub-Neptune · ESI 0.262.39 R⊕ · 5.4 days year
- Explore →K2-138 eSub-Neptune · ESI 0.273.39 R⊕ · 8.3 days year
- Explore →K2-138 fSub-Neptune · ESI 0.232.90 R⊕ · 13 days year
- Explore →K2-138 gSub-Neptune · ESI 0.413.01 R⊕ · 42 days year
Explore from here · roam the neighborhood
Zoom out: system → (soon) galaxy arm, and the host black hole at the galaxy's heart.
Can you see it tonight?
SMALL TELESCOPE NEEDED
Brightness mag 12.2To see it 4-6" (100-150 mm) telescope
Illustration generated from K2-138's temperature, not a photograph.