A-type star · white star
KELT-21
7598 K
temperature
1.64 R☉
radius
1.46 M☉
mass
8.030 L☉
luminosity
How long to get there · 1,536 ly away
At light speed, about 1,536 years to reach this system.
See the full survival timeline (jet to folding spacetime) →Size vs the Sun
How it compares with our Sun
1.32×
as hot as the Sun
1.64×
the Sun's width
1.46×
the Sun's mass
8.03×
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?
SMALL TELESCOPE NEEDED
Brightness mag 10.5To see it 4-6" (100-150 mm) telescope
Illustration generated from KELT-21's temperature, not a photograph.