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Common exoplanet 15 EP

BD-13 2130 b

RA 114.2885° · Dec -13.9067° · exoplanet

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Score breakdown

· 3 badges
15 pts · Common
Common 22 pts → Uncommon
  • Distant (over 1,000 light-years) +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 15

7 more points to reach Uncommon.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • Gas giant · +4

Trivia

Hard to believe

  • Denser than iron. It is packed tighter than solid iron — whatever it is made of, it is not ordinary rock.

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. 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 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 January — that's when to go looking.

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Getting there

  • Aboard Voyager 1. ≈ 53 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
8.75
diameter km
159452.5
discovery facility
La Silla Observatory
discovery method
Radial Velocity
discovery year
2007
dist ly
3017.641
eccentricity
0.21
eq temp k
744.77
host star teff
4545
insolation
40.0372
mag
10.038
mass earth
3108.3774
name
BD-13 2130 b
orbital period days
714.3
radius earth
12.5
semi major au
1.66
spect
G5 IV/V
sys num planets
1
sys num stars
1

About BD-13 2130 b

BD-13 2130 b is a common exoplanet. It lies about 3,017.6 light-years from Earth, shines at apparent magnitude 10.04, has spectral type G5 IV/V and has an equilibrium temperature near 745 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 10.04, a small backyard telescope will bring it into view.

Like any astronomical target, BD-13 2130 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 BD-13 2130 b is a common exoplanet

BD-13 2130 b scores 15 points on Spacedle's rarity scale, which places it in the common tier. Another 7 points would lift it into a rarer tier.

That score comes from 3 science badges — Confirmed exoplanet, Distant (over 1,000 light-years) and Gas giant — 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.