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Rare exoplanet 37 EP

HD 113337 c

RA 195.4438° · Dec 63.6103° · exoplanet

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Score breakdown

· 5 badges
37 pts · Rare
Rare 50 pts → Epic
  • Two suns in its sky +12
  • Long-period world +10
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 37

13 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Long-period world · +10
  • Multi-planet system · +6
  • Two suns in its sky · +12

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.
  • 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 6 it is just past naked-eye reach — ordinary binoculars will pull it in.
  • Never sets. So far north that from Britain, Canada or northern Europe it never dips below the horizon — it is up every clear night of the year.
  • 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.

Properties

density gcc
19.5
diameter km
154350.02
discovery facility
Haute-Provence Observatory
discovery method
Radial Velocity
discovery year
2020
dist ly
118.0032
eccentricity
0.164
eq temp k
153.36
host star teff
6774
inclination
57.478
insolation
0.0926
mag
6.0208
mass earth
6299.6769
multi star system
yes
name
HD 113337 c
orbital period days
5429.9348
radius earth
12.1
semi major au
6.805
spect
F6 V
sys num planets
2
sys num stars
3

About HD 113337 c

HD 113337 c is a rare exoplanet. It lies about 118 light-years from Earth, shines at apparent magnitude 6.02, has spectral type F6 V and has an equilibrium temperature near 153 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 6.02, it is an easy target for binoculars.

Like any astronomical target, HD 113337 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 113337 c is a rare exoplanet

HD 113337 c scores 37 points on Spacedle's rarity scale, which places it in the rare tier. Another 13 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, Gas giant, Long-period world, Multi-planet system and Two suns in its sky — 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.