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Rare exoplanet 47 EP

TOI-1670 b

RA 259.0173° · Dec 72.1612° · exoplanet

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Score breakdown

· 6 badges
47 pts · Rare
Rare 50 pts → Epic
  • Denser than iron +18
  • Eccentric orbit +9
  • Multi-planet system +6
  • Confirmed exoplanet +5
  • Sub-Neptune +5
  • Found by TESS +4
Total score 47

3 more points to reach Epic.

Badges

  • Confirmed exoplanet · +5
  • Sub-Neptune · +5
  • Eccentric orbit · +9
  • Denser than iron · +18
  • Multi-planet system · +6
  • Found by TESS · +4

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.
  • 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 9.9 you'll want a small backyard telescope.
  • Never sets. So far north that from Britain, Canada or northern Europe it never dips below the horizon — it is up every clear night of the year.
  • Best time of year. It stands highest in the middle of the night around June — that's when to go looking.

Properties

density gcc
8.6
diameter km
26277.772
discovery facility
Transiting Exoplanet Survey Satellite (TESS)
discovery method
Transit
discovery year
2022
dist ly
548.1606
eccentricity
0.59
eq temp k
1062
host star teff
6170
inclination
86.87
insolation
196.694
mag
9.889
mass earth
41.3177
name
TOI-1670 b
orbital period days
10.9846
radius earth
2.06
semi major au
0.103
spect
F7 V
sys num planets
2
sys num stars
1

About TOI-1670 b

TOI-1670 b is a rare exoplanet. It lies about 548.2 light-years from Earth, shines at apparent magnitude 9.89, has spectral type F7 V and has an equilibrium temperature near 1,062 K.

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 9.89, a small backyard telescope will bring it into view.

Like any astronomical target, TOI-1670 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 TOI-1670 b is a rare exoplanet

TOI-1670 b scores 47 points on Spacedle's rarity scale, which places it in the rare tier. Another 3 points would lift it into a rarer tier.

That score comes from 6 science badges — Confirmed exoplanet, Sub-Neptune, Eccentric orbit, Denser than iron, Multi-planet system and Found by TESS — 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.