About KIC 8121913 b
KIC 8121913 b is a common exoplanet. It lies about 2,306.9 light-years from Earth, spans roughly 13.4 Earth radii, weighs about 667.44 Earth masses and completes an orbit every 3.29 days.
About 13.4× the width of Earth.
Common exoplanet 22 EP
KIC 8121913 b
RA 298.9678° · Dec 43.9094° · exoplanet
Score breakdown
· 4 badgesCommon 24 pts → Uncommon
- Distant (>1000 ly) +10
- Confirmed exoplanet +5
- Gas giant +4
- Found by Kepler +3
Total score 22
2 more points to reach Uncommon.
Badges
- Confirmed exoplanet · +5
- Gas giant · +4
- Found by Kepler · +3
- Distant (>1000 ly) · +10
Trivia
Could we get there?
- Verdict. Impossible with our current technology — and the next millennium of it.
Getting there
- Aboard Voyager 1. ≈ 40.5 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 3.6 million years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 23.1 thousand years in a starship at a tenth of light speed.
- Distance. 2307 light-years from Earth.
Look-back time
- Look-back time. Its light left before the last ice age ended.
Saying hello
- Say hello. A radio message and its reply would take 4614 years round-trip.
Standing on it
- A year here. A full year lasts just 3.3 Earth days.
By the numbers
- Size. About 13.4× the width of Earth.
- Volume. About 2406 Earths could fit inside it.
- Mass. Roughly 667× Earth's mass — about 2.1 Jupiters.
- Your weight. You'd weigh about 3.7× your Earth weight standing here.
How we found it
- Discovery. Found by Kepler using the orbital brightness modulation method.
Properties
- density gcc
- 1.52
- discovery facility
- Kepler
- discovery method
- Orbital Brightness Modulation
- dist ly
- 2306.9112
- mass earth
- 667.4397
- name
- KIC 8121913 b
- orbital period days
- 3.2946
- radius earth
- 13.4
- sys num planets
- 1
How to see it
Like any astronomical target, KIC 8121913 b is best seen from a dark site away from city lights, and when it is above the horizon depends on your latitude and the time of year. The visibility panel above works out tonight's viewing window for your saved location.
Why KIC 8121913 b is a common exoplanet
KIC 8121913 b scores 22 points on Spacedle's rarity scale, which places it in the common tier. Another 2 points would lift it into a rarer tier.
That score comes from 4 science badges — Confirmed exoplanet, Gas giant, Found by Kepler and Distant (>1000 ly) — each earned for a real, measurable property of the object. Rarity on Spacedle is never random: the more remarkable an object's astrophysics, the more badges it collects, the higher it scores, and the rarer it ranks.