K-type star · orange
HD 81817
4140 K
temperature
83.80 R☉
radius
4.30 M☉
mass
1,823 L☉
luminosity
How long to get there · 878 ly away
At light speed, about 878 years to reach this system.
See the full survival timeline (jet to folding spacetime) →Size vs the Sun
How it compares with our Sun
0.72×
as hot as the Sun
83.80×
the Sun's width
4.30×
the Sun's mass
1,823×
the Sun's light output
Worlds orbiting this star
- Explore →HD 81817 cGas giant · ESI 0.0912.00 R⊕ · 1.7 years year
- Explore →HD 81817 bGas giant · ESI 0.1012.00 R⊕ · 2.8 years 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?
VISIBLE TO THE NAKED EYE
Brightness mag 4.3To see it no equipment needed
Illustration generated from HD 81817's temperature, not a photograph.