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Epic exoplanet 63 EP

Kepler-1661 b

RA 285.1671° · Dec 41.9669° · exoplanet

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Score breakdown

· 6 badges
63 pts · Epic
Epic 78 pts → Anomaly
  • In the habitable zone +30
  • Circumbinary (orbits both stars) +14
  • Distant (over 1,000 light-years) +6
  • Confirmed exoplanet +5
  • Sub-Neptune +5
  • Found by Kepler +3
Total score 63

15 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • In the habitable zone · +30
  • Sub-Neptune · +5
  • Circumbinary (orbits both stars) · +14
  • Found by Kepler · +3

Trivia

What makes it special

  • Goldilocks zone. Sits where it's neither too hot nor too cold — liquid water could exist on a surface here.

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.
  • What the zone means. The habitable zone is only about temperature: it is the band where liquid water could survive on a surface. It is a promising address, not evidence of anything living.

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 14.4 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.

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Properties

circumbinary
yes
density gcc
1.6
diameter km
49366.494
discovery facility
Kepler
discovery method
Transit
discovery year
2020
dist ly
1339.2194
eccentricity
0.057
eq temp k
243
habitable zone
yes
host star teff
5100
inclination
89.46
insolation
0.88
mag
14.357
mass earth
17
name
Kepler-1661 b
orbital period days
175.06
radius earth
3.87
semi major au
0.633
spect
K
sys num planets
1
sys num stars
2

About Kepler-1661 b

Kepler-1661 b is an epic exoplanet. It lies about 1,339.2 light-years from Earth, shines at apparent magnitude 14.36, has spectral type K and has an equilibrium temperature near 243 K.

Sits where it's neither too hot nor too cold — liquid water could exist on a surface here.

How to see it

At apparent magnitude 14.36, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, Kepler-1661 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 Kepler-1661 b is an epic exoplanet

Kepler-1661 b scores 63 points on Spacedle's rarity scale, which places it in the epic tier. Another 15 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Distant (over 1,000 light-years), In the habitable zone, Sub-Neptune, Circumbinary (orbits both stars) and Found by Kepler — 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.