K-type star · orange dwarf
Kepler-257
5180 K
temperature
1.04 R☉
radius
0.92 M☉
mass
0.419 L☉
luminosity
How long to get there · 2,545 ly away
At light speed, about 2,545 years to reach this system.
See the full survival timeline (jet to folding spacetime) →Size vs the Sun
How it compares with our Sun
0.90×
as hot as the Sun
1.04×
the Sun's width
0.92×
the Sun's mass
0.42×
the Sun's light output
Worlds orbiting this star
- Explore →Kepler-257 bSub-Neptune · ESI 0.172.61 R⊕ · 2.4 days year
- Explore →Kepler-257 cIce / gas giant · ESI 0.185.41 R⊕ · 6.6 days year
- Explore →Kepler-257 dIce / gas giant · ESI 0.304.95 R⊕ · 25 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?
FAINT — LARGE TELESCOPE NEEDED
Brightness mag 15.7To see it 10"+ (250 mm) telescope, dark sky
Illustration generated from Kepler-257's temperature, not a photograph.