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Rare exoplanet 42 EP

Kepler-1489 c

RA 281.2958° · Dec 44.4654° · exoplanet

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Score breakdown

· 6 badges
42 pts · Rare
Rare 50 pts → Epic
  • Ultra-short period +14
  • Orbits a Sun-like star +8
  • Distant (over 1,000 light-years) +6
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Found by Kepler +3
Total score 42

8 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • Ultra-short period · +14
  • Multi-planet system · +6
  • Found by Kepler · +3
  • Orbits a Sun-like star · +8

Trivia

Hard to believe

  • A year in a day. Its entire year is over in 16.3 hours. Birthdays here would come round faster than meals.

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. Its density says rock, though lighter than Earth's mix: probably less iron, or a thick shell of water and ice over the top.
  • 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 15 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 July — that's when to go looking.

Properties

density gcc
3.6
diameter km
6505.662
discovery facility
Kepler
discovery method
Transit
discovery year
2024
dist ly
4184.7446
host star teff
5565.53
mag
14.983
mass earth
0.087
name
Kepler-1489 c
orbital period days
0.6807
radius earth
0.51
spect
G
sys num planets
2
sys num stars
1

About Kepler-1489 c

Kepler-1489 c is a rare exoplanet. It lies about 4,184.7 light-years from Earth, shines at apparent magnitude 14.98, has spectral type G and spans roughly 0.51 Earth radii.

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 14.98, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, Kepler-1489 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 Kepler-1489 c is a rare exoplanet

Kepler-1489 c scores 42 points on Spacedle's rarity scale, which places it in the rare tier. Another 8 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Distant (over 1,000 light-years), Ultra-short period, Multi-planet system, Found by Kepler and Orbits a Sun-like 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.