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Uncommon exoplanet 33 EP

Kepler-448 c

RA 297.4537° · Dec 41.0110° · exoplanet

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Score breakdown

· 6 badges
33 pts · Uncommon
Uncommon 34 pts → Rare
  • Eccentric orbit +9
  • Distant (over 1,000 light-years) +6
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Gas giant +4
  • Found by Kepler +3
Total score 33

1 more point to reach Rare.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • Gas giant · +4
  • Eccentric orbit · +9
  • Multi-planet system · +6
  • Found by Kepler · +3

Trivia

Hard to believe

  • Denser than iron. It is packed tighter than solid iron — whatever it is made of, it is not ordinary rock.

What it actually is

  • What it is made of. Denser than Earth — a solid world of rock and iron, with no meaningful atmosphere to speak of by mass.
  • 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 11.5 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 July — that's when to go looking.

Could we get there?

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

Properties

density gcc
22.2
diameter km
153074.4
discovery facility
Kepler
discovery method
Transit Timing Variations
discovery year
2017
dist ly
1302.6605
eccentricity
0.65
eq temp k
184.72
host star teff
6635
insolation
0.2399
mag
11.51
mass earth
6992.26
name
Kepler-448 c
orbital period days
2500
radius earth
12
semi major au
4.2
sys num planets
2
sys num stars
1

About Kepler-448 c

Kepler-448 c is an uncommon exoplanet. It lies about 1,302.7 light-years from Earth, shines at apparent magnitude 11.51, has an equilibrium temperature near 185 K and spans roughly 12 Earth radii.

Denser than Earth — a solid world of rock and iron, with no meaningful atmosphere to speak of by mass.

How to see it

At apparent magnitude 11.51, a small backyard telescope will bring it into view.

Like any astronomical target, Kepler-448 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-448 c is an uncommon exoplanet

Kepler-448 c scores 33 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 1 point would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Distant (over 1,000 light-years), Gas giant, Eccentric orbit, Multi-planet system 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.