Rare exoplanet 38 EP

Kepler-278 c

RA 290.1072° · Dec 38.7023° · exoplanet

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Score breakdown

· 6 badges

38 pts · Rare

Rare 46 pts → Epic

Distant (>1000 ly) +10
Eccentric orbit +9
Multi-planet system +6
Confirmed exoplanet +5
Sub-Neptune +5
Found by Kepler +3

Total score 38

8 more points to reach Epic.

Badges

Confirmed exoplanet · +5
Sub-Neptune · +5
Eccentric orbit · +9
Multi-planet system · +6
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. ≈ 25.4 million years at Voyager 1's speed (17 km/s).
Fastest probe ever. ≈ 2.3 million years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 14.4 thousand years in a starship at a tenth of light speed.
Distance. 1445 light-years from Earth.

Look-back time

Look-back time. The light you'd see left around the year 581.

Saying hello

Say hello. A radio message and its reply would take 2890 years round-trip.

Standing on it

A year here. A full year lasts just 51.1 Earth days.

By the numbers

Size. About 3.3× the width of Earth.
Volume. About 34.9 Earths could fit inside it.
Mass. About 34.9× the mass of Earth.
Your weight. You'd weigh about 3.3× your Earth weight standing here.
Temperature. A scorching 219°C on average.

How we found it

Discovery. Found by Kepler using the transit method.

Cosmic context

Crowded system. One of at least 2 planets orbiting its star.

Properties

density gcc: 5.5
discovery facility: Kepler
discovery method: Transit
dist ly: 1444.9689
eccentricity: 0.616
eq temp k: 492
insolation: 54.3
mass earth: 34.9
name: Kepler-278 c
orbital period days: 51.111
radius earth: 3.268
sys num planets: 2

About Kepler-278 c

Kepler-278 c is a rare exoplanet. It lies about 1,445 light-years from Earth, has an equilibrium temperature near 492 K, spans roughly 3.27 Earth radii and weighs about 34.9 Earth masses.

One of at least 2 planets orbiting its star.

How to see it

Like any astronomical target, Kepler-278 c 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-278 c is a rare exoplanet

Kepler-278 c scores 38 points on Spacedle's rarity scale, which places it in the rare tier. Another 8 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Sub-Neptune, Eccentric orbit, Multi-planet system, 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.