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Anomaly exoplanet 79 EP

TYC 8998-760-1 b

RA 201.3001° · Dec -64.9392° · exoplanet

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Score breakdown

· 7 badges
79 pts · Anomaly
Anomaly 120 pts → Mythic
  • Ultra-hot Jupiter +26
  • Directly imaged +16
  • Orbits beyond Neptune's distance +12
  • Disputed — it may not be there at all +10
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 79

41 more points to reach Mythic.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Ultra-hot Jupiter · +26
  • Multi-planet system · +6
  • Directly imaged · +16
  • Orbits beyond Neptune's distance · +12
  • Disputed — it may not be there at all · +10

Trivia

What makes it special

  • Ultra-hot Jupiter. So hot that iron vaporises on the dayside, blows around to the night side and rains back down as molten metal.

What it actually is

  • What it is made of. Its density says rock, though lighter than Earth's mix: probably less iron, or a thick shell of water and ice over the top.
  • Crowded system. One of at least 2 planets orbiting its star.

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

  • How to spot it. At magnitude 11.1 you'll want a small backyard telescope.
  • Southern sky only. So far south it never rises for most of the northern hemisphere. To see it you'd have to travel to Chile, South Africa or Australia.
  • Best time of year. It stands highest in the middle of the night around April — that's when to go looking.

Could we get there?

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

Properties

controversial
yes
density gcc
4
diameter km
270239.7592
discovery facility
Paranal Observatory
discovery method
Imaging
discovery year
2020
dist ly
308.6013
eccentricity
0.44
eq temp k
2638
host star teff
4573
inclination
90.6
insolation
0
mag
11.124
mass earth
6928.6593
name
TYC 8998-760-1 b
radius earth
21.185
semi major au
146
spect
K3 IV
sys num planets
2
sys num stars
1

About TYC 8998-760-1 b

TYC 8998-760-1 b is an anomaly exoplanet. It lies about 308.6 light-years from Earth, shines at apparent magnitude 11.12, has spectral type K3 IV and has an equilibrium temperature near 2,638 K.

So hot that iron vaporises on the dayside, blows around to the night side and rains back down as molten metal.

How to see it

At apparent magnitude 11.12, a small backyard telescope will bring it into view.

Like any astronomical target, TYC 8998-760-1 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 TYC 8998-760-1 b is an anomaly exoplanet

TYC 8998-760-1 b scores 79 points on Spacedle's rarity scale, which places it in the anomaly tier. Another 41 points would lift it into a rarer tier.

That score comes from 7 science badges — Confirmed exoplanet, Gas giant, Ultra-hot Jupiter, Multi-planet system, Directly imaged, Orbits beyond Neptune's distance and Disputed — it may not be there at all — 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.