About Kepler-1689 b
Kepler-1689 b is an uncommon exoplanet. It lies about 959.3 light-years from Earth, has an equilibrium temperature near 879 K, spans roughly 0.95 Earth radii and weighs about 0.8 Earth masses.
Around 95% of Earth's width.
Uncommon exoplanet 24 EP
Kepler-1689 b
RA 291.5742° · Dec 38.6559° · exoplanet
Score breakdown
· 3 badgesUncommon 33 pts → Rare
- Earth-sized +16
- Confirmed exoplanet +5
- Found by Kepler +3
Total score 24
9 more points to reach Rare.
Badges
- Confirmed exoplanet · +5
- Earth-sized · +16
- Found by Kepler · +3
Trivia
Could we get there?
- Verdict. Hopelessly far for any craft humanity can build today.
Getting there
- Aboard Voyager 1. ≈ 16.9 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 1.5 million years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 9593 years in a starship at a tenth of light speed.
- Distance. 959 light-years from Earth.
Look-back time
- Look-back time. The light you'd see left around the year 1067.
Saying hello
- Say hello. A radio message and its reply would take 1919 years round-trip.
Standing on it
- A year here. A full year lasts just 8.5 Earth days.
By the numbers
- Size. Around 95% of Earth's width.
- Mass. About 0.8× the mass of Earth.
- Your weight. You'd weigh about 0.9× your Earth weight standing here.
- Temperature. Around 606°C — hotter than a self-cleaning oven.
How we found it
- Discovery. Found by Kepler using the transit method.
Properties
- density gcc
- 5.17
- discovery facility
- Kepler
- discovery method
- Transit
- dist ly
- 959.2966
- eccentricity
- 0
- eq temp k
- 879
- insolation
- 149.3
- mass earth
- 0.799
- name
- Kepler-1689 b
- orbital period days
- 8.483
- radius earth
- 0.9468
- sys num planets
- 1
How to see it
Like any astronomical target, Kepler-1689 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 Kepler-1689 b is an uncommon exoplanet
Kepler-1689 b scores 24 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 9 points would lift it into a rarer tier.
That score comes from 3 science badges — Confirmed exoplanet, Earth-sized and Found by Kepler — 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.