Rare exoplanet 43 EP

Ross 508 b

RA 230.9613° · Dec 17.4605° · exoplanet

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Score breakdown

· 3 badges

43 pts · Rare

Rare 46 pts → Epic

In the habitable zone +30
Super-Earth +8
Confirmed exoplanet +5

Total score 43

3 more points to reach Epic.

Badges

Confirmed exoplanet · +5
In the habitable zone · +30
Super-Earth · +8

Trivia

What makes it special

Goldilocks zone. Sits where it's neither too hot nor too cold — liquid water could exist.

Could we get there?

Verdict. Hopelessly far for any craft humanity can build today.

Getting there

Aboard Voyager 1. ≈ 642.5 thousand years at Voyager 1's speed (17 km/s).
Fastest probe ever. ≈ 57.1 thousand years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 366 years in a starship at a tenth of light speed.
Distance. 36.6 light-years from Earth.

Look-back time

Look-back time. The light you'd see left around the year 1989.

Saying hello

Say hello. A radio message and its reply would take 73.1 years round-trip.

Standing on it

A year here. A full year lasts just 10.8 Earth days.

By the numbers

Size. About 1.8× the width of Earth.
Volume. About 6.1 Earths could fit inside it.
Mass. About 4× the mass of Earth.
Your weight. You'd weigh about 1.2× your Earth weight standing here.
Temperature. A surprisingly temperate 21°C average.

How we found it

Discovery. Found by Subaru Telescope using the radial velocity method.

Properties

density gcc: 3.59
discovery facility: Subaru Telescope
discovery method: Radial Velocity
dist ly: 36.5631
eccentricity: 0.33
eq temp k: 293.86
habitable zone: yes
insolation: 1.2464
mass earth: 4
name: Ross 508 b
orbital period days: 10.77
radius earth: 1.83
sys num planets: 1

About Ross 508 b

Ross 508 b is a rare exoplanet. It lies about 36.6 light-years from Earth, has an equilibrium temperature near 294 K, spans roughly 1.83 Earth radii and weighs about 4 Earth masses.

Sits where it's neither too hot nor too cold — liquid water could exist.

How to see it

Like any astronomical target, Ross 508 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 Ross 508 b is a rare exoplanet

Ross 508 b scores 43 points on Spacedle's rarity scale, which places it in the rare tier. Another 3 points would lift it into a rarer tier.

That score comes from 3 science badges — Confirmed exoplanet, In the habitable zone and Super-Earth — 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.