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Epic exoplanet 55 EP

DP Leo b

RA 169.3162° · Dec 17.9616° · exoplanet

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Score breakdown

· 6 badges
55 pts · Epic
Epic 78 pts → Anomaly
  • Circumbinary (orbits both stars) +14
  • Orbits a hot blue-white star +14
  • Long-period world +10
  • Frozen world +8
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 55

23 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Frozen world · +8
  • Long-period world · +10
  • Circumbinary (orbits both stars) · +14
  • Orbits a hot blue-white star · +14

Trivia

What makes it special

  • Frozen world. A deep-frozen world, too far from its star's warmth for anything to stay liquid.

What it actually is

  • What it is made of. Its density says rock, though lighter than Earth's mix: probably less iron, or a thick shell of water and ice over the top.

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 18.7 it is far too faint for the eye: this one belongs to cameras and long exposures.
  • 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 March — 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. ≈ 17.5 million years at Voyager 1's speed (17 km/s).

Properties

circumbinary
yes
density gcc
5.35
diameter km
162003.74
discovery facility
Yunnan Astronomical Observatory
discovery method
Eclipse Timing Variations
discovery year
2009
dist ly
997.0067
eccentricity
0.39
eq temp k
24.39
host star teff
13500
insolation
0.0001
mag
18.6837
mass earth
1995.8883
name
DP Leo b
orbital period days
10220
radius earth
12.7
semi major au
8.19
sys num planets
1
sys num stars
2

About DP Leo b

DP Leo b is an epic exoplanet. It lies about 997 light-years from Earth, shines at apparent magnitude 18.68, has an equilibrium temperature near 24 K and spans roughly 12.7 Earth radii.

A deep-frozen world, too far from its star's warmth for anything to stay liquid.

How to see it

At apparent magnitude 18.68, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, DP Leo 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 DP Leo b is an epic exoplanet

DP Leo b scores 55 points on Spacedle's rarity scale, which places it in the epic tier. Another 23 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Gas giant, Frozen world, Long-period world, Circumbinary (orbits both stars) and Orbits a hot blue-white 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.