M-type star · red dwarf
K2-18
3457 K
temperature
0.41 R☉
radius
0.36 M☉
mass
0.025 L☉
luminosity
How long to get there · 124 ly away
At light speed, about 124 years to reach this system.
See the full survival timeline (jet to folding spacetime) →Size vs the Sun
How it compares with our Sun
0.60×
as hot as the Sun
0.41×
the Sun's width
0.36×
the Sun's mass
0.03×
the Sun's light output
Worlds orbiting this star
- Explore →K2-18 cSub-Neptune · ESI 0.572.65 R⊕ · 9.0 days year
- Explore →K2-18 bSub-Neptune · ESI 0.772.37 R⊕ · 33 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?
MID-SIZE TELESCOPE NEEDED
Brightness mag 13.5To see it 8-10" (200-250 mm) telescope
Illustration generated from K2-18's temperature, not a photograph.