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Common exoplanet 16 EP

KOBE-1 b

RA 19.1660° · Dec 25.3310° · exoplanet

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Score breakdown

· 3 badges
16 pts · Common
Common 24 pts → Uncommon
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Sub-Neptune +5
Total score 16

8 more points to reach Uncommon.

Badges

  • Confirmed exoplanet · +5
  • Sub-Neptune · +5
  • Multi-planet system · +6

Trivia

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 1.4 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 122.1 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 782 years in a starship at a tenth of light speed.
  • Distance. 78.2 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1948.

Saying hello

  • Say hello. A radio message and its reply would take 156 years round-trip.

Standing on it

  • A year here. A full year lasts just 8.5 Earth days.

By the numbers

  • Size. About 2.9× the width of Earth.
  • Volume. About 24.6 Earths could fit inside it.
  • Mass. About 8.8× the mass of Earth.
  • Your weight. You'd weigh about 1.0× your Earth weight standing here.
  • Temperature. A scorching 321°C on average.

How we found it

  • Discovery. Found by Calar Alto Observatory using the radial velocity method.

Cosmic context

  • Crowded system. One of at least 2 planets orbiting its star.

Properties

density gcc
1.96
discovery facility
Calar Alto Observatory
discovery method
Radial Velocity
dist ly
78.1855
eccentricity
0
eq temp k
594.4
insolation
20.56
mass earth
8.8
name
KOBE-1 b
orbital period days
8.5399
radius earth
2.91
sys num planets
2

About KOBE-1 b

KOBE-1 b is a common exoplanet. It lies about 78.2 light-years from Earth, has an equilibrium temperature near 594 K, spans roughly 2.91 Earth radii and weighs about 8.8 Earth masses.

One of at least 2 planets orbiting its star.

How to see it

Like any astronomical target, KOBE-1 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 KOBE-1 b is a common exoplanet

KOBE-1 b scores 16 points on Spacedle's rarity scale, which places it in the common tier. Another 8 points would lift it into a rarer tier.

That score comes from 3 science badges — Confirmed exoplanet, Sub-Neptune 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.

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Sky imagery and survey data courtesy of Aladin Lite & CDS, Strasbourg. Object data from the NASA Exoplanet Archive, JPL Small-Body Database, and the ATNF Pulsar Catalogue.