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Uncommon exoplanet 25 EP

SWEEPS-11 b

RA 269.7583° · Dec -29.1982° · exoplanet

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Score breakdown

· 4 badges
25 pts · Uncommon
Uncommon 34 pts → Rare
  • Tidally locked +10
  • Distant (over 1,000 light-years) +6
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 25

9 more points to reach Rare.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • Gas giant · +4
  • Tidally locked · +10

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

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

Sense of scale

  • In perspective. Roughly as far as the centre of our galaxy — you're looking across the Milky Way.

Find it in the sky

  • How to spot it. At magnitude 19.8 it is far too faint for the eye: this one belongs to cameras and long exposures.
  • Southern sky. It rides the southern half of the sky — an easier target the further south you are.
  • Best time of year. It stands highest in the middle of the night around June — 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
8.34
diameter km
161570.0292
discovery facility
Hubble Space Telescope
discovery method
Transit
discovery year
2006
dist ly
27723.26
mag
19.83
mass earth
3082.82
name
SWEEPS-11 b
orbital period days
1.796
radius earth
12.666
semi major au
0.03
sys num planets
1
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About SWEEPS-11 b

SWEEPS-11 b is an uncommon exoplanet. It lies about 27,723.3 light-years from Earth, shines at apparent magnitude 19.83, spans roughly 12.67 Earth radii and weighs about 3,082.82 Earth masses.

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

Like any astronomical target, SWEEPS-11 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 SWEEPS-11 b is an uncommon exoplanet

SWEEPS-11 b scores 25 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 9 points would lift it into a rarer tier.

That score comes from 4 science badges — Confirmed exoplanet, Distant (over 1,000 light-years), Gas giant and Tidally locked — 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.