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Common exoplanet 23 EP

BD+05 4868 A b

RA 326.8614° · Dec 6.6053° · exoplanet

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Score breakdown

· 3 badges
23 pts · Common
Common 24 pts → Uncommon
  • Lava world +14
  • Confirmed exoplanet +5
  • Found by TESS +4
Total score 23

1 more point to reach Uncommon.

Badges

  • Confirmed exoplanet · +5
  • 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. ≈ 2.5 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 221.9 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 1421 years in a starship at a tenth of light speed.
  • Distance. 142 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1884.

Saying hello

  • Say hello. A radio message and its reply would take 284 years round-trip.

Standing on it

  • A year here. A full year lasts just 1.3 Earth days.

By the numbers

  • Mass. About 6.2× the mass of Earth.
  • Temperature. Around 1547°C — hotter than a self-cleaning oven.

How we found it

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

Properties

discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
dist ly
142.1019
eq temp k
1820
insolation
443.787
mass earth
6.2
name
BD+05 4868 A b
orbital period days
1.2719
sys num planets
1

About BD+05 4868 A b

BD+05 4868 A b is a common exoplanet. It lies about 142.1 light-years from Earth, has an equilibrium temperature near 1,820 K, weighs about 6.2 Earth masses and completes an orbit every 1.27 days.

Its surface is likely an ocean of molten rock.

How to see it

Like any astronomical target, BD+05 4868 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 BD+05 4868 A b is a common exoplanet

BD+05 4868 A b scores 23 points on Spacedle's rarity scale, which places it in the common tier. Another 1 point would lift it into a rarer tier.

That score comes from 3 science badges — Confirmed exoplanet, 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.