← Back to dex
Uncommon exoplanet 23 EP

HD 137496 c

RA 231.7421° · Dec -16.5090° · exoplanet

Loading sky survey…
🌌 View in 3D star map
Tonight’s visibility

Computing the sky for your location…

Score breakdown

· 4 badges
23 pts · Uncommon
Uncommon 34 pts → Rare
  • Orbits a Sun-like star +8
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 23

11 more points to reach Rare.

Badges

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

Trivia

What it actually is

  • What it is made of. Denser than Earth — a solid world of rock and iron, with no meaningful atmosphere to speak of by mass.
  • 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 9.9 you'll want a small backyard telescope.
  • Southern sky. It rides the southern half of the sky — an easier target the further south you are.
  • Best time of year. It stands highest in the middle of the night around May — 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. ≈ 8.9 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
6.69
diameter km
160728.12
discovery facility
Multiple Observatories
discovery method
Radial Velocity
discovery year
2021
dist ly
506.5757
eccentricity
0.477
eq temp k
370
host star teff
5799
insolation
1.5713
mag
9.899
mass earth
2434.5656
name
HD 137496 c
orbital period days
479.9
radius earth
12.6
semi major au
1.2163
spect
G
sys num planets
2
sys num stars
1

About HD 137496 c

HD 137496 c is an uncommon exoplanet. It lies about 506.6 light-years from Earth, shines at apparent magnitude 9.9, has spectral type G and has an equilibrium temperature near 370 K.

Denser than Earth — a solid world of rock and iron, with no meaningful atmosphere to speak of by mass.

How to see it

At apparent magnitude 9.9, a small backyard telescope will bring it into view.

Like any astronomical target, HD 137496 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 HD 137496 c is an uncommon exoplanet

HD 137496 c scores 23 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 11 points would lift it into a rarer tier.

That score comes from 4 science badges — Confirmed exoplanet, 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.