← Back to dex
Epic exoplanet 69 EP

HATS-70 b

RA 109.1045° · Dec -31.2444° · exoplanet

Loading sky survey…
🌌 View in 3D star map
Tonight’s visibility

Computing the sky for your location…

Score breakdown

· 7 badges
69 pts · Epic
Epic 78 pts → Anomaly
  • Ultra-hot Jupiter +26
  • Orbits a hot blue-white star +14
  • Tidally locked +10
  • Distant (over 1,000 light-years) +6
  • Confirmed exoplanet +5
  • Gas giant +4
  • Blasted by starlight +4
Total score 69

9 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • Distant (over 1,000 light-years) · +6
  • Gas giant · +4
  • Ultra-hot Jupiter · +26
  • Tidally locked · +10
  • Blasted by starlight · +4
  • Orbits a hot blue-white star · +14

Trivia

What makes it special

  • Ultra-hot Jupiter. So hot that iron vaporises on the dayside, blows around to the night side and rains back down as molten metal.

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. 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 12.2 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 January — 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
6.64
diameter km
197890.1962
discovery facility
HATSouth
discovery method
Transit
discovery year
2019
dist ly
4758.0616
eccentricity
0.18
eq temp k
2730
host star teff
7930
inclination
86.7
insolation
9110
mag
12.227
mass earth
4100.007
name
HATS-70 b
orbital period days
1.8882
radius earth
15.5133
semi major au
0.0363
sys num planets
1
sys num stars
1
tidally locked
yes
tidally locked inferred
yes

About HATS-70 b

HATS-70 b is an epic exoplanet. It lies about 4,758.1 light-years from Earth, shines at apparent magnitude 12.23, has an equilibrium temperature near 2,730 K and spans roughly 15.51 Earth radii.

So hot that iron vaporises on the dayside, blows around to the night side and rains back down as molten metal.

How to see it

At apparent magnitude 12.23, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, HATS-70 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 HATS-70 b is an epic exoplanet

HATS-70 b scores 69 points on Spacedle's rarity scale, which places it in the epic tier. Another 9 points would lift it into a rarer tier.

That score comes from 7 science badges — Confirmed exoplanet, Distant (over 1,000 light-years), Gas giant, Ultra-hot Jupiter, Tidally locked, Blasted by starlight and Orbits a hot blue-white 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.