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Uncommon exoplanet 29 EP

TOI-4504 d

RA 114.4673° · Dec -62.0783° · exoplanet

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Score breakdown

· 5 badges
29 pts · Uncommon
Uncommon 34 pts → Rare
  • Orbits a Sun-like star +8
  • Distant (over 1,000 light-years) +6
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 29

5 more points to reach Rare.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • Gas giant · +4
  • Multi-planet system · +6
  • Orbits a Sun-like star · +8

Trivia

What it actually is

  • Hugging its star. It orbits closer to its star than Mercury does to the Sun, completing a lap in less time than Mercury takes.
  • What it is made of. Too light to be solid rock and too heavy to be all gas: most likely a deep global ocean or a thick steamy envelope over a rocky core.
  • Crowded system. One of at least 3 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 13.4 it is far too faint for the eye: this one belongs to cameras and long exposures.
  • 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 January — that's when to go looking.

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Properties

density gcc
2.48
diameter km
143634.812
discovery facility
Multiple Observatories
discovery method
Transit Timing Variations
discovery year
2024
dist ly
1117.4268
eccentricity
0.293
eq temp k
524.8
host star teff
5315
inclination
88.982
insolation
12.5915
mag
13.364
mass earth
643
name
TOI-4504 d
orbital period days
41.2872
radius earth
11.26
semi major au
0.2219
spect
K1 V
sys num planets
3
sys num stars
1

About TOI-4504 d

TOI-4504 d is an uncommon exoplanet. It lies about 1,117.4 light-years from Earth, shines at apparent magnitude 13.36, has spectral type K1 V and has an equilibrium temperature near 525 K.

It orbits closer to its star than Mercury does to the Sun, completing a lap in less time than Mercury takes.

How to see it

At apparent magnitude 13.36, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, TOI-4504 d 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-4504 d is an uncommon exoplanet

TOI-4504 d scores 29 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 5 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Distant (over 1,000 light-years), Gas giant, Multi-planet system and Orbits a Sun-like star — 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.