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Uncommon exoplanet 32 EP

TIC 139270665 c

RA 124.0339° · Dec 33.2915° · exoplanet

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Score breakdown

· 5 badges
32 pts · Uncommon
Uncommon 34 pts → Rare
  • Eccentric orbit +9
  • Orbits a Sun-like star +8
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 32

2 more points to reach Rare.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Eccentric orbit · +9
  • Multi-planet system · +6
  • Orbits a Sun-like star · +8

Trivia

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 10.4 you'll want a small backyard telescope.
  • 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 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. ≈ 10.9 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
3.98
diameter km
164554.98
discovery facility
Lick Observatory
discovery method
Radial Velocity
discovery year
2024
dist ly
619.2887
eccentricity
0.566
eq temp k
200
host star teff
5844
insolation
0.21
mag
10.385
mass earth
1554.1809
name
TIC 139270665 c
orbital period days
1010
radius earth
12.9
semi major au
2
spect
G2
sys num planets
2
sys num stars
1

About TIC 139270665 c

TIC 139270665 c is an uncommon exoplanet. It lies about 619.3 light-years from Earth, shines at apparent magnitude 10.38, has spectral type G2 and has an equilibrium temperature near 200 K.

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

How to see it

At apparent magnitude 10.38, a small backyard telescope will bring it into view.

Like any astronomical target, TIC 139270665 c 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 139270665 c is an uncommon exoplanet

TIC 139270665 c scores 32 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 2 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Gas giant, Eccentric orbit, 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.