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Rare exoplanet 41 EP

HD 56414 b

RA 107.8437° · Dec -68.8333° · exoplanet

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Score breakdown

· 6 badges
41 pts · Rare
Rare 50 pts → Epic
  • Orbits a hot blue-white star +14
  • Eccentric orbit +9
  • Confirmed exoplanet +5
  • Sub-Neptune +5
  • Blasted by starlight +4
  • Found by TESS +4
Total score 41

9 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Sub-Neptune · +5
  • Eccentric orbit · +9
  • Blasted by starlight · +4
  • Found by TESS · +4
  • Orbits a hot blue-white star · +14

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. Lighter than Neptune — a puffed-up ball of hydrogen and helium with no surface anywhere on it to stand on.

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 9.2 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 January — 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. ≈ 15.6 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
1.43
diameter km
47325.502
discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
discovery year
2022
dist ly
887.8521
eccentricity
0.68
eq temp k
1133
host star teff
8500
inclination
89.3
insolation
1614.3559
mag
9.217
mass earth
13.3
name
HD 56414 b
orbital period days
29.0499
radius earth
3.71
semi major au
0.229
sys num planets
1
sys num stars
1

About HD 56414 b

HD 56414 b is a rare exoplanet. It lies about 887.9 light-years from Earth, shines at apparent magnitude 9.22, has an equilibrium temperature near 1,133 K and spans roughly 3.71 Earth radii.

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 9.22, a small backyard telescope will bring it into view.

Like any astronomical target, HD 56414 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 HD 56414 b is a rare exoplanet

HD 56414 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 6 science badges — Confirmed exoplanet, Sub-Neptune, Eccentric orbit, Blasted by starlight, Found by TESS and Orbits a hot blue-white 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.