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Rare exoplanet 41 EP

2MASS J04414489+2301513 b

RA 70.4371° · Dec 23.0309° · exoplanet

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Score breakdown

· 5 badges
41 pts · Rare
Rare 50 pts → Epic
  • Directly imaged +16
  • Frozen world +8
  • Orbits a red dwarf +8
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 41

9 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Frozen world · +8
  • Directly imaged · +16
  • Orbits a red dwarf · +8

Trivia

What makes it special

  • Frozen world. A deep-frozen world, too far from its star's warmth for anything to stay liquid.

What it actually is

  • What it is made of. Denser than Earth — a solid world of rock and iron, with no meaningful atmosphere to speak of by mass.

Sense of scale

  • In perspective. Far away by human standards, yet still a local address inside the Milky Way's spiral arms.

Find it in the sky

  • Northern sky. It rides the northern half of the sky — an easier target the further north you are.
  • Best time of year. It stands highest in the middle of the night around November — that's when to go looking.

Could we get there?

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

Getting there

  • Aboard Voyager 1. ≈ 6.9 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 613.3 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

density gcc
6.55
diameter km
160728.12
discovery facility
Hubble Space Telescope
discovery method
Imaging
discovery year
2010
dist ly
392.7701
eq temp k
17.6
host star teff
2936
insolation
0
mass earth
2383.6
name
2MASS J04414489+2301513 b
radius earth
12.6
semi major au
15
spect
M8.5
sys num planets
1
sys num stars
1

About 2MASS J04414489+2301513 b

2MASS J04414489+2301513 b is a rare exoplanet. It lies about 392.8 light-years from Earth, has spectral type M8.5, has an equilibrium temperature near 18 K and spans roughly 12.6 Earth radii.

A deep-frozen world, too far from its star's warmth for anything to stay liquid.

How to see it

Like any astronomical target, 2MASS J04414489+2301513 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 2MASS J04414489+2301513 b is a rare exoplanet

2MASS J04414489+2301513 b scores 41 points on Spacedle's rarity scale, which places it in the rare tier. Another 9 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Gas giant, Frozen world, Directly imaged and Orbits a red dwarf — 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.