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Common exoplanet 19 EP

HAT-P-68 b

RA 118.4832° · Dec 23.9382° · exoplanet

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Score breakdown

· 3 badges
19 pts · Common
Common 24 pts → Uncommon
  • Hot Jupiter +10
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 19

5 more points to reach Uncommon.

Badges

  • Confirmed exoplanet · +5
  • Gas giant · +4
  • Hot Jupiter · +10

Trivia

Could we get there?

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

Getting there

  • Aboard Voyager 1. ≈ 11.6 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 1 million years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 6593 years in a starship at a tenth of light speed.
  • Distance. 659 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1367.

Saying hello

  • Say hello. A radio message and its reply would take 1319 years round-trip.

Standing on it

  • A year here. A full year lasts just 2.3 Earth days.

By the numbers

  • Size. About 12× the width of Earth.
  • Volume. About 1735 Earths could fit inside it.
  • Mass. Roughly 230× Earth's mass — about 0.7 Jupiters.
  • Your weight. You'd weigh about 1.6× your Earth weight standing here.
  • Density. Less dense than water — drop it in a big enough ocean and it would float.
  • Temperature. Around 755°C — hotter than a self-cleaning oven.

How we found it

  • Discovery. Found by HATNet using the transit method.

Properties

density gcc
0.727
discovery facility
HATNet
discovery method
Transit
dist ly
659.3309
eccentricity
0.041
eq temp k
1027.8
insolation
184.8
mass earth
230.1089
name
HAT-P-68 b
orbital period days
2.2984
radius earth
12.016
sys num planets
1

About HAT-P-68 b

HAT-P-68 b is a common exoplanet. It lies about 659.3 light-years from Earth, has an equilibrium temperature near 1,028 K, spans roughly 12.02 Earth radii and weighs about 230.11 Earth masses.

About 12× the width of Earth.

How to see it

Like any astronomical target, HAT-P-68 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 HAT-P-68 b is a common exoplanet

HAT-P-68 b scores 19 points on Spacedle's rarity scale, which places it in the common tier. Another 5 points would lift it into a rarer tier.

That score comes from 3 science badges — Confirmed exoplanet, Gas giant and Hot Jupiter — 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.