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Common exoplanet 15 EP

BD+15 2375 b

RA 176.4820° · Dec 14.6163° · 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

  • 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

  • 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.

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 10.4 you'll want a small backyard telescope.
  • 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. Impossible with our current technology — and the next millennium of it.

Getting there

  • Aboard Voyager 1. ≈ 44 million years at Voyager 1's speed (17 km/s).

Properties

density gcc
0.705
diameter km
176035.56
discovery facility
Roque de los Muchachos Observatory
discovery method
Radial Velocity
discovery year
2016
dist ly
2505.0249
eccentricity
0.001
eq temp k
883.68
host star teff
4649
insolation
111.9838
mag
10.41
mass earth
337.2176
name
BD+15 2375 b
orbital period days
153.22
radius earth
13.8
semi major au
0.576
spect
G5
sys num planets
1
sys num stars
1

Nearby objects

About BD+15 2375 b

BD+15 2375 b is a common exoplanet. It lies about 2,505 light-years from Earth, shines at apparent magnitude 10.41, has spectral type G5 and has an equilibrium temperature near 884 K.

Lighter than Neptune — a puffed-up ball of hydrogen and helium with no surface anywhere on it to stand on.

How to see it

At apparent magnitude 10.41, a small backyard telescope will bring it into view.

Like any astronomical target, BD+15 2375 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+15 2375 b is a common exoplanet

BD+15 2375 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.