B-type star · blue-white star

KELT-9

667 ly1 known planetbrightness mag 7.5B9.5-A0
10170 K
temperature
2.36 R☉
radius
2.52 M☉
mass
53.0 L☉
luminosity
How long to get there · 667 ly away

At light speed, about 667 years to reach this system.

See the full survival timeline (jet to folding spacetime) →
Size vs the Sun
SunKELT-9 is 2.36× the Sun’s width
How it compares with our Sun
1.76×
as hot as the Sun
2.36×
the Sun's width
2.52×
the Sun's mass
53.00×
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?
BINOCULARS NEEDED
Brightness mag 7.5To see it 50 mm binoculars

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