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Rare exoplanet 47 EP

70 Vir b

RA 202.1065° · Dec 13.7763° · exoplanet

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Score breakdown

· 5 badges
47 pts · Rare
Rare 50 pts → Epic
  • Found before the year 2000 +18
  • Its star is visible to the naked eye +12
  • Orbits a Sun-like star +8
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 47

3 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Its star is visible to the naked eye · +12
  • Orbits a Sun-like star · +8
  • Found before the year 2000 · +18

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.

Sense of scale

  • In perspective. Inside our stellar backyard: every radio broadcast humanity has ever made has already swept past it.

Find it in the sky

  • How to spot it. At magnitude 5 you can see it with your own eyes from a dark site.
  • 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 April — 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. ≈ 1 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 91.2 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

density gcc
6.54
diameter km
160728.12
discovery facility
Lick Observatory
discovery method
Radial Velocity
discovery year
1996
dist ly
58.3855
eccentricity
0.3988
eq temp k
525.24
host star teff
5495
insolation
12.2183
mag
4.9681
mass earth
2380.45
name
70 Vir b
orbital period days
116.688
radius earth
12.6
semi major au
0.481
spect
G5V
sys num planets
1
sys num stars
1

About 70 Vir b

70 Vir b is a rare exoplanet. It lies about 58.4 light-years from Earth, shines at apparent magnitude 4.97, has spectral type G5V and has an equilibrium temperature near 525 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 4.97, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 70 Vir 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 70 Vir b is a rare exoplanet

70 Vir b scores 47 points on Spacedle's rarity scale, which places it in the rare tier. Another 3 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Gas giant, Its star is visible to the naked eye, Orbits a Sun-like star and Found before the year 2000 — 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.