M-type star · red dwarf

K2-9

271 ly1 known planetbrightness mag 15.9M2.5 V
3390 K
temperature
0.31 R☉
radius
0.30 M☉
mass
0.012 L☉
luminosity
How long to get there · 271 ly away

At light speed, about 271 years to reach this system.

See the full survival timeline (jet to folding spacetime) →
Size vs the Sun
SunK2-9 is 3.2× narrower than the Sun
How it compares with our Sun
0.59×
as hot as the Sun
0.31×
the Sun's width
0.30×
the Sun's mass
0.01×
the Sun's light output
Worlds orbiting this star
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 15.9To see it 10"+ (250 mm) telescope, dark sky

Illustration generated from K2-9's temperature, not a photograph.