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Uncommon exoplanet 27 EP

TOI-6651 b

RA 15.7886° · Dec 35.3890° · exoplanet

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Score breakdown

· 4 badges
27 pts · Uncommon
Uncommon 33 pts → Rare
  • Lava world +14
  • Confirmed exoplanet +5
  • Neptune-like +4
  • Found by TESS +4
Total score 27

6 more points to reach Rare.

Badges

  • Confirmed exoplanet · +5
  • Neptune-like · +4
  • Lava world · +14
  • Found by TESS · +4

Trivia

What makes it special

  • Lava world. Its surface is likely an ocean of molten rock.

Could we get there?

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

Getting there

  • Aboard Voyager 1. ≈ 12.2 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 1.1 million years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 6919 years in a starship at a tenth of light speed.
  • Distance. 692 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1334.

Saying hello

  • Say hello. A radio message and its reply would take 1384 years round-trip.

Standing on it

  • A year here. A full year lasts just 5.1 Earth days.

By the numbers

  • Size. About 5.1× the width of Earth.
  • Volume. About 132 Earths could fit inside it.
  • Mass. Roughly 61× Earth's mass — about 0.2 Jupiters.
  • Your weight. You'd weigh about 2.4× your Earth weight standing here.
  • Temperature. Around 1220°C — hotter than a self-cleaning oven.

How we found it

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

Properties

density gcc
2.52
discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
dist ly
691.8682
eccentricity
0.091
eq temp k
1493
insolation
817
mass earth
61
name
TOI-6651 b
orbital period days
5.057
radius earth
5.09
sys num planets
1

About TOI-6651 b

TOI-6651 b is an uncommon exoplanet. It lies about 691.9 light-years from Earth, has an equilibrium temperature near 1,493 K, spans roughly 5.09 Earth radii and weighs about 61 Earth masses.

Its surface is likely an ocean of molten rock.

How to see it

Like any astronomical target, TOI-6651 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 TOI-6651 b is an uncommon exoplanet

TOI-6651 b scores 27 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 6 points would lift it into a rarer tier.

That score comes from 4 science badges — Confirmed exoplanet, Neptune-like, Lava world and Found by TESS — 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.

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Sky imagery and survey data courtesy of Aladin Lite & CDS, Strasbourg. Object data from the NASA Exoplanet Archive, JPL Small-Body Database, and the ATNF Pulsar Catalogue.