Rare exoplanet 35 EP

LTT 1445 A b

RA 45.4625° · Dec -16.5945° · exoplanet

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Score breakdown

· 5 badges

35 pts · Rare

Rare 46 pts → Epic

Nearby (<25 ly) +12
Super-Earth +8
Multi-planet system +6
Confirmed exoplanet +5
Found by TESS +4

Total score 35

11 more points to reach Epic.

Badges

Confirmed exoplanet · +5
Super-Earth · +8
Multi-planet system · +6
Found by TESS · +4
Nearby (<25 ly) · +12

Trivia

Could we get there?

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

Getting there

Aboard Voyager 1. ≈ 393.7 thousand years at Voyager 1's speed (17 km/s).
Fastest probe ever. ≈ 35 thousand years even at the Parker Solar Probe's 192 km/s.
At 10% light speed. ≈ 224 years in a starship at a tenth of light speed.
Distance. 22.4 light-years from Earth.

Look-back time

Look-back time. The light you'd see left around the year 2004.

Saying hello

Say hello. A radio message and its reply would take 44.8 years round-trip.

Standing on it

A year here. A full year lasts just 5.4 Earth days.

By the numbers

Size. About 1.3× the width of Earth.
Mass. About 2.7× the mass of Earth.
Your weight. You'd weigh about 1.5× your Earth weight standing here.
Temperature. A scorching 158°C on average.

How we found it

Discovery. Found by Transiting Exoplanet Survey Satellite (TESS) using the transit method.

Cosmic context

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

Properties

density gcc: 6.2
discovery facility: Transiting Exoplanet Survey Satellite (TESS)
discovery method: Transit
dist ly: 22.4046
eccentricity: 0.18
eq temp k: 431
insolation: 5.7
mass earth: 2.73
name: LTT 1445 A b
orbital period days: 5.3588
radius earth: 1.34
sys num planets: 2

About LTT 1445 A b

LTT 1445 A b is a rare exoplanet. It lies about 22.4 light-years from Earth, has an equilibrium temperature near 431 K, spans roughly 1.34 Earth radii and weighs about 2.73 Earth masses.

One of at least 2 planets orbiting its star.

How to see it

Like any astronomical target, LTT 1445 A 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 LTT 1445 A b is a rare exoplanet

LTT 1445 A b scores 35 points on Spacedle's rarity scale, which places it in the rare tier. Another 11 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Super-Earth, Multi-planet system, Found by TESS and Nearby (<25 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.