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Epic exoplanet 49 EP

2MASS J0249-0557 c

RA 42.4852° · Dec -5.9600° · exoplanet

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Score breakdown

· 5 badges
49 pts · Epic
Epic 68 pts → Anomaly
  • Directly imaged +16
  • Lava world +14
  • Hot Jupiter +10
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 49

19 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Hot Jupiter · +10
  • Lava world · +14
  • Directly imaged · +16

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. ≈ 3.8 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 336.4 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 2155 years in a starship at a tenth of light speed.
  • Distance. 215 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1811.

Saying hello

  • Say hello. A radio message and its reply would take 431 years round-trip.

By the numbers

  • Size. About 17.4× the width of Earth.
  • Volume. About 5244 Earths could fit inside it.
  • Mass. Roughly 3617× Earth's mass — about 11.4 Jupiters.
  • Your weight. You'd weigh about 12.0× your Earth weight standing here.
  • Temperature. Around 1450°C — hotter than a self-cleaning oven.

How we found it

  • Discovery. Found by Mauna Kea Observatory using the imaging method.

Properties

density gcc
3.79
discovery facility
Mauna Kea Observatory
discovery method
Imaging
dist ly
215.4629
eq temp k
1723
insolation
0
mass earth
3616.8873
name
2MASS J0249-0557 c
radius earth
17.3739
sys num planets
1

About 2MASS J0249-0557 c

2MASS J0249-0557 c is an epic exoplanet. It lies about 215.5 light-years from Earth, has an equilibrium temperature near 1,723 K, spans roughly 17.37 Earth radii and weighs about 3,616.89 Earth masses.

Its surface is likely an ocean of molten rock.

How to see it

Like any astronomical target, 2MASS J0249-0557 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 2MASS J0249-0557 c is an epic exoplanet

2MASS J0249-0557 c scores 49 points on Spacedle's rarity scale, which places it in the epic tier. Another 19 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Gas giant, Hot Jupiter, Lava world and Directly imaged — 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.