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Common exoplanet 18 EP

HD 76920 b

RA 133.8204° · Dec -67.2654° · exoplanet

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Score breakdown

· 3 badges
18 pts · Common
Common 22 pts → Uncommon
  • Eccentric orbit +9
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 18

4 more points to reach Uncommon.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Eccentric orbit · +9

Trivia

What it actually is

  • 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.

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 7.8 it is just past naked-eye reach — ordinary binoculars will pull it in.
  • 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 February — 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. ≈ 10.5 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 937.2 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

density gcc
2.43
diameter km
167106.22
discovery facility
Multiple Observatories
discovery method
Radial Velocity
discovery year
2017
dist ly
600.2281
eccentricity
0.8782
eq temp k
621.44
host star teff
4664
insolation
24.7841
mag
7.83
mass earth
994.8029
name
HD 76920 b
orbital period days
415.891
radius earth
13.1
semi major au
1.091
spect
K1 III
sys num planets
1
sys num stars
1

About HD 76920 b

HD 76920 b is a common exoplanet. It lies about 600.2 light-years from Earth, shines at apparent magnitude 7.83, has spectral type K1 III and has an equilibrium temperature near 621 K.

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.

How to see it

At apparent magnitude 7.83, it is an easy target for binoculars.

Like any astronomical target, HD 76920 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 76920 b is a common exoplanet

HD 76920 b scores 18 points on Spacedle's rarity scale, which places it in the common tier. Another 4 points would lift it into a rarer tier.

That score comes from 3 science badges — Confirmed exoplanet, Gas giant and Eccentric orbit — 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.