Anomaly exoplanet 72 EP

HAT-P-13 c

RA 129.8824° · Dec 47.3519° · exoplanet

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Score breakdown

· 6 badges

72 pts · Anomaly

Anomaly 95 pts → Mythic

In the habitable zone +30
Denser than iron +18
Eccentric orbit +9
Multi-planet system +6
Confirmed exoplanet +5
Gas giant +4

Total score 72

23 more points to reach Mythic.

Badges

Confirmed exoplanet · +5
In the habitable zone · +30
Gas giant · +4
Eccentric orbit · +9
Denser than iron · +18
Multi-planet system · +6

Trivia

What makes it special

Goldilocks zone. Sits where it's neither too hot nor too cold — liquid water could exist.
Heavyweight. Packed denser than solid iron.

Could we get there?

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

Getting there

Aboard Voyager 1. ≈ 14.1 million years at Voyager 1's speed (17 km/s).
Fastest probe ever. ≈ 1.3 million years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 8050 years in a starship at a tenth of light speed.
Distance. 805 light-years from Earth.

Look-back time

Look-back time. The light you'd see left around the year 1221.

Saying hello

Say hello. A radio message and its reply would take 1610 years round-trip.

Standing on it

A year here. A full year lasts just 446 Earth days.

By the numbers

Size. About 12.3× the width of Earth.
Volume. About 1861 Earths could fit inside it.
Mass. Roughly 4538× Earth's mass — about 14.3 Jupiters.
Your weight. You'd weigh about 30.0× your Earth weight standing here.
Density. Denser than solid iron.
Temperature. A scorching 67°C on average.

How we found it

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

Cosmic context

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

Properties

density gcc: 13.4
discovery facility: W. M. Keck Observatory
discovery method: Radial Velocity
dist ly: 804.9856
eccentricity: 0.6616
eq temp k: 340
habitable zone: yes
insolation: 1.4016
mass earth: 4538.421
name: HAT-P-13 c
orbital period days: 446.27
radius earth: 12.3
sys num planets: 2

About HAT-P-13 c

HAT-P-13 c is an anomaly exoplanet. It lies about 805 light-years from Earth, has an equilibrium temperature near 340 K, spans roughly 12.3 Earth radii and weighs about 4,538.42 Earth masses.

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

How to see it

Like any astronomical target, HAT-P-13 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 HAT-P-13 c is an anomaly exoplanet

HAT-P-13 c scores 72 points on Spacedle's rarity scale, which places it in the anomaly tier. Another 23 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, In the habitable zone, Gas giant, Eccentric orbit, Denser than iron and Multi-planet system — 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.