Uncommon exoplanet 26 EP

HIP 70849 b

RA 217.3271° · Dec -46.4647° · exoplanet

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Score breakdown

· 4 badges

26 pts · Uncommon

Uncommon 33 pts → Rare

Eccentric orbit +9
Frozen world +8
Confirmed exoplanet +5
Gas giant +4

Total score 26

7 more points to reach Rare.

Badges

Confirmed exoplanet · +5
Gas giant · +4
Frozen world · +8
Eccentric orbit · +9

Trivia

What makes it special

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

Could we get there?

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

Getting there

Aboard Voyager 1. ≈ 1.4 million years at Voyager 1's speed (17 km/s).
Fastest probe ever. ≈ 122.5 thousand years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 785 years in a starship at a tenth of light speed.
Distance. 78.5 light-years from Earth.

Look-back time

Look-back time. The light you'd see left around the year 1948.

Saying hello

Say hello. A radio message and its reply would take 157 years round-trip.

Standing on it

A year here. A full year lasts about 10 Earth years.

By the numbers

Size. About 12.9× the width of Earth.
Volume. About 2147 Earths could fit inside it.
Mass. Roughly 1430× Earth's mass — about 4.5 Jupiters.
Your weight. You'd weigh about 8.6× your Earth weight standing here.
Temperature. A frigid -194°C — colder than dry ice.

How we found it

Discovery. Found by La Silla Observatory using the radial velocity method.

Properties

density gcc: 3.66
discovery facility: La Silla Observatory
discovery method: Radial Velocity
dist ly: 78.464
eccentricity: 0.65
eq temp k: 78.85
insolation: 0.0056
mass earth: 1430.2278
name: HIP 70849 b
orbital period days: 3649
radius earth: 12.9
sys num planets: 1

About HIP 70849 b

HIP 70849 b is an uncommon exoplanet. It lies about 78.5 light-years from Earth, has an equilibrium temperature near 79 K, spans roughly 12.9 Earth radii and weighs about 1,430.23 Earth masses.

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

How to see it

Like any astronomical target, HIP 70849 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 HIP 70849 b is an uncommon exoplanet

HIP 70849 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, Gas giant, Frozen world and Eccentric orbit — 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.