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Uncommon exoplanet 25 EP

DMPP-2 d

RA 27.4077° · Dec -34.4591° · exoplanet

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Score breakdown

· 4 badges
25 pts · Uncommon
Uncommon 34 pts → Rare
  • Hot Jupiter +10
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 25

9 more points to reach Rare.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Hot Jupiter · +10
  • Multi-planet system · +6

Trivia

Hard to believe

  • It would float. It is less dense than water. Drop it in a big enough ocean and the whole world would bob on the surface.

What it actually is

  • Hugging its star. It orbits closer to its star than Mercury does to the Sun, completing a lap in less time than Mercury takes.
  • What it is made of. Lighter than Neptune — a puffed-up ball of hydrogen and helium with no surface anywhere on it to stand on.
  • Crowded system. One of at least 3 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 8.6 it is just past naked-eye reach — ordinary binoculars will pull it in.
  • 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 October — that's when to go looking.

Properties

density gcc
0.323
diameter km
147971.92
discovery facility
Multiple Observatories
discovery method
Radial Velocity
discovery year
2026
dist ly
449.8996
eccentricity
0.1
eq temp k
1105.06
host star teff
6500
insolation
61.9324
mag
8.57
mass earth
91.79
name
DMPP-2 d
orbital period days
16.491
radius earth
11.6
semi major au
0.1432
spect
F5 V
sys num planets
3
sys num stars
1

About DMPP-2 d

DMPP-2 d is an uncommon exoplanet. It lies about 449.9 light-years from Earth, shines at apparent magnitude 8.57, has spectral type F5 V and has an equilibrium temperature near 1,105 K.

It orbits closer to its star than Mercury does to the Sun, completing a lap in less time than Mercury takes.

How to see it

At apparent magnitude 8.57, it is an easy target for binoculars.

Like any astronomical target, DMPP-2 d 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 DMPP-2 d is an uncommon exoplanet

DMPP-2 d scores 25 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 9 points would lift it into a rarer tier.

That score comes from 4 science badges — Confirmed exoplanet, Gas giant, Hot Jupiter and Multi-planet system — 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.