About Kepler-888 b
Kepler-888 b is an uncommon exoplanet. It lies about 1,372.5 light-years from Earth, has an equilibrium temperature near 417 K, spans roughly 1.76 Earth radii and weighs about 3.75 Earth masses.
About 1.8× the width of Earth.
Uncommon exoplanet 26 EP
Kepler-888 b
RA 295.5213° · Dec 49.7387° · exoplanet
Score breakdown
· 4 badgesUncommon 33 pts → Rare
- Distant (>1000 ly) +10
- Super-Earth +8
- Confirmed exoplanet +5
- Found by Kepler +3
Total score 26
7 more points to reach Rare.
Badges
- Confirmed exoplanet · +5
- Super-Earth · +8
- 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. ≈ 24.1 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 2.1 million years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 13.7 thousand years in a starship at a tenth of light speed.
- Distance. 1373 light-years from Earth.
Look-back time
- Look-back time. The light you'd see left around the year 653.
Saying hello
- Say hello. A radio message and its reply would take 2745 years round-trip.
Standing on it
- A year here. A full year lasts just 70.7 Earth days.
By the numbers
- Size. About 1.8× the width of Earth.
- Volume. About 5.5 Earths could fit inside it.
- Mass. About 3.8× the mass of Earth.
- Your weight. You'd weigh about 1.2× your Earth weight standing here.
- Temperature. A scorching 144°C on average.
How we found it
- Discovery. Found by Kepler using the transit method.
Properties
- density gcc
- 3.78
- discovery facility
- Kepler
- discovery method
- Transit
- dist ly
- 1372.5199
- eccentricity
- 0
- eq temp k
- 417
- insolation
- 7.854
- mass earth
- 3.75
- name
- Kepler-888 b
- orbital period days
- 70.6979
- radius earth
- 1.76
- sys num planets
- 1
How to see it
Like any astronomical target, Kepler-888 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-888 b is an uncommon exoplanet
Kepler-888 b scores 26 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 7 points would lift it into a rarer tier.
That score comes from 4 science badges — Confirmed exoplanet, Super-Earth, 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.