K-type star · orange dwarf
GJ 3998
3726 K
temperature
0.50 R☉
radius
0.52 M☉
mass
0.044 L☉
luminosity
How long to get there · 59.2 ly away
At light speed, about 59 years to reach this system.
See the full survival timeline (jet to folding spacetime) →Size vs the Sun
How it compares with our Sun
0.65×
as hot as the Sun
0.50×
the Sun's width
0.52×
the Sun's mass
0.04×
the Sun's light output
Worlds orbiting this star
- Explore →GJ 3998 bRocky world · ESI 0.371.39 R⊕ · 2.7 days year
- Explore →GJ 3998 cSub-Neptune · ESI 0.522.50 R⊕ · 14 days year
- Explore →GJ 3998 dSub-Neptune · ESI 0.712.34 R⊕ · 42 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?
SMALL TELESCOPE NEEDED
Brightness mag 10.8To see it 4-6" (100-150 mm) telescope
Illustration generated from GJ 3998's temperature, not a photograph.