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Rare exoplanet 42 EP

TIC 393818343 b

RA 310.2917° · Dec 3.6383° · exoplanet

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Score breakdown

· 6 badges
42 pts · Rare
Rare 50 pts → Epic
  • Two suns in its sky +12
  • Eccentric orbit +9
  • Orbits a Sun-like star +8
  • Confirmed exoplanet +5
  • Gas giant +4
  • Found by TESS +4
Total score 42

8 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Eccentric orbit · +9
  • Found by TESS · +4
  • Orbits a Sun-like star · +8
  • Two suns in its sky · +12

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. Its density says rock, though lighter than Earth's mix: probably less iron, or a thick shell of water and ice over the top.

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 9.5 you'll want a small backyard telescope.
  • Seen from everywhere. It sits almost on the celestial equator, so it can be seen from essentially anywhere on Earth.
  • Best time of year. It stands highest in the middle of the night around July — 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. ≈ 5.4 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
4.22
diameter km
155423.6076
discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
discovery year
2024
dist ly
305.7207
eccentricity
0.6058
eq temp k
805.5
host star teff
5756
inclination
89.57
insolation
2.28
mag
9.48
mass earth
1379.3753
multi star system
yes
name
TIC 393818343 b
orbital period days
16.2492
radius earth
12.1842
semi major au
0.1291
spect
G0
sys num planets
1
sys num stars
2

About TIC 393818343 b

TIC 393818343 b is a rare exoplanet. It lies about 305.7 light-years from Earth, shines at apparent magnitude 9.48, has spectral type G0 and has an equilibrium temperature near 806 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 9.48, a small backyard telescope will bring it into view.

Like any astronomical target, TIC 393818343 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 TIC 393818343 b is a rare exoplanet

TIC 393818343 b scores 42 points on Spacedle's rarity scale, which places it in the rare tier. Another 8 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Gas giant, Eccentric orbit, Found by TESS, Orbits a Sun-like star and Two suns in its sky — 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.