Epic exoplanet 57 EP

Kepler-48 f

RA 299.1393° · Dec 40.9489° · exoplanet

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Score breakdown

· 7 badges

57 pts · Epic

Epic 68 pts → Anomaly

Richly packed system +14
Long-period world +10
Distant (>1000 ly) +10
Frozen world +8
Multi-planet system +6
Confirmed exoplanet +5
Gas giant +4

Total score 57

11 more points to reach Anomaly.

Badges

Confirmed exoplanet · +5
Gas giant · +4
Frozen world · +8
Long-period world · +10
Multi-planet system · +6
Richly packed system · +14
Distant (>1000 ly) · +10

Trivia

What makes it special

Frozen world. A deep-frozen world far from its star's warmth.
Packed system. Crammed into a system of five or more planets.

Could we get there?

Verdict. Impossible with our current technology — and the next millennium of it.

Getting there

Aboard Voyager 1. ≈ 17.6 million years at Voyager 1's speed (17 km/s).
Fastest probe ever. ≈ 1.6 million years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 10 thousand years in a starship at a tenth of light speed.
Distance. 1000 light-years from Earth.

Look-back time

Look-back time. The light you'd see left around the year 1026.

Saying hello

Say hello. A radio message and its reply would take 2001 years round-trip.

Standing on it

A year here. A full year lasts about 14.3 Earth years.

By the numbers

Size. About 13.8× the width of Earth.
Volume. About 2628 Earths could fit inside it.
Mass. Roughly 299× Earth's mass — about 0.9 Jupiters.
Your weight. You'd weigh about 1.6× your Earth weight standing here.
Density. Less dense than water — drop it in a big enough ocean and it would float.
Temperature. A frigid -177°C — colder than dry ice.

How we found it

Discovery. Found by W. M. Keck Observatory using the radial velocity method.

Cosmic context

Crowded system. One of at least 5 planets orbiting its star.

Properties

density gcc: 0.624
discovery facility: W. M. Keck Observatory
discovery method: Radial Velocity
dist ly: 1000.4444
eccentricity: 0.0153
eq temp k: 95.68
insolation: 0.0157
mass earth: 298.581
name: Kepler-48 f
orbital period days: 5219.6819
radius earth: 13.8
sys num planets: 5

About Kepler-48 f

Kepler-48 f is an epic exoplanet. It lies about 1,000.4 light-years from Earth, has an equilibrium temperature near 96 K, spans roughly 13.8 Earth radii and weighs about 298.58 Earth masses.

A deep-frozen world far from its star's warmth.

How to see it

Like any astronomical target, Kepler-48 f 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-48 f is an epic exoplanet

Kepler-48 f scores 57 points on Spacedle's rarity scale, which places it in the epic tier. Another 11 points would lift it into a rarer tier.

That score comes from 7 science badges — Confirmed exoplanet, Gas giant, Frozen world, Long-period world, Multi-planet system, Richly packed system 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.