Epic exoplanet 59 EP

HD 34445 b

RA 79.4207° · Dec 7.3527° · exoplanet

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Score breakdown

· 5 badges

59 pts · Epic

Epic 68 pts → Anomaly

In the habitable zone +30
Richly packed system +14
Multi-planet system +6
Confirmed exoplanet +5
Gas giant +4

Total score 59

9 more points to reach Anomaly.

Badges

Confirmed exoplanet · +5
In the habitable zone · +30
Gas giant · +4
Multi-planet system · +6
Richly packed system · +14

Trivia

What makes it special

Goldilocks zone. Sits where it's neither too hot nor too cold — liquid water could exist.
Packed system. Crammed into a system of five or more planets.

Could we get there?

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

Getting there

Aboard Voyager 1. ≈ 2.6 million years at Voyager 1's speed (17 km/s).
Fastest probe ever. ≈ 234.7 thousand years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 1503 years in a starship at a tenth of light speed.
Distance. 150 light-years from Earth.

Look-back time

Look-back time. The light you'd see left around the year 1876.

Saying hello

Say hello. A radio message and its reply would take 301 years round-trip.

Standing on it

A year here. A full year lasts about 2.9 Earth years.

By the numbers

Size. About 13.9× the width of Earth.
Volume. About 2686 Earths could fit inside it.
Mass. Roughly 261× Earth's mass — about 0.8 Jupiters.
Your weight. You'd weigh about 1.3× your Earth weight standing here.
Density. Less dense than water — drop it in a big enough ocean and it would float.
Temperature. A frigid -42°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 6 planets orbiting its star.

Properties

density gcc: 0.533
discovery facility: W. M. Keck Observatory
discovery method: Radial Velocity
dist ly: 150.3276
eccentricity: 0.27
eq temp k: 231.47
habitable zone: yes
insolation: 0.4691
mass earth: 260.6206
name: HD 34445 b
orbital period days: 1049
radius earth: 13.9
sys num planets: 6

About HD 34445 b

HD 34445 b is an epic exoplanet. It lies about 150.3 light-years from Earth, has an equilibrium temperature near 231 K, spans roughly 13.9 Earth radii and weighs about 260.62 Earth masses.

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

How to see it

Like any astronomical target, HD 34445 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 HD 34445 b is an epic exoplanet

HD 34445 b scores 59 points on Spacedle's rarity scale, which places it in the epic tier. Another 9 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, In the habitable zone, Gas giant, Multi-planet system and Richly packed 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.