Key parameters at a glance

A radius of 1.31 Earth radii
A mass of 2.27 Earth masses
Surface gravity around 1.32 g
An orbital period of 1.066 days
Semi-major axis 0.0204 AU
Equilibrium temperature 1,885 K (1612 °C)
Distance from Earth 149.59 light-years
Earth Similarity Index 0.150
Travel time at Voyager 1 speed 2,637,988 years

TOI-1860 b Planet Profile

Physical Specs

Radius

1.31 R⊕

Radius (Jupiter)

0.117 R♃

Mass

2.27 M⊕

Mass (Jupiter)

0.007 M♃

Density

5.55 g/cm³

Surface Gravity

1.32 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.150

HZ Position Inner

Controversial No

Discovery

Year 2022

Method Transit

Facility Transiting Exoplanet Survey Satellite (TESS)

Telescope 0.1 m TESS Telescope

Size rank in cohort

Rank by radius

#1072of 1176

top 91.1%

This planet

1.31R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-374 d 1.31 R⊕ Kepler-1298 b 1.31 R⊕ Kepler-62 b 1.31 R⊕

Metric	Earth	TOI-1860 b	Jupiter
Radius (R⊕)	1.00	1.31	11.21
Mass (M⊕)	1.00	2.27	317.83
Density (g/cm³)	5.51	5.55	1.33
Surface Gravity (g)	1.00	1.32	2.53
Insolation (S⊕)	1.00	876.70	0.037

Star Catalogue Identifiers

TIC

TIC 202426247

Gaia DR2

Gaia DR2 1620024491110370688

Gaia DR3

Gaia DR3 1620024491110370688

System

TOI-1860

Percentile among Super-Earth cohort

Radius 1.310 R⊕ · percentile 8 / cohort 1176

Mass 2.270 M⊕ · percentile 8 / cohort 1176

Orbital period 1.07 d · percentile 6 / cohort 1164

Distance 45.86 pc · percentile 10 / cohort 1171

ESI 0.150 · percentile 4 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

1.066 days

Semi-major axis

0.0204 AU

Eccentricity

—

Inclination

— °

Year Length

A year here lasts approximately 1.07 Earth days (0.3% of a terrestrial year) at a mean orbital distance of 0.0204 AU.

Transit Fingerprint

Depth

0.015 %

Duration

1.142 h

Impact parameter b

0.690

Transit midpoint (BJD)

2,458,683.6041

Photometric dip

Transit produces a flux drop of 151 ppm lasting ≈ 1.14 h.

Eq. Temperature

1,885K

(1612 °C)

Insolation (S⊕)

876.70

Earth = 1.00

Earth Similarity (ESI)

0.150

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

Discovery Paper

Primary reference

Giacalone et al. 2022

Instrument

TESS CCD Array

Publication

2022-02

Observation locale

Space

Discovery cohort

Planets confirmed in 2022 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).

TOI-1452 b · Super-Earth TOI-712 d · Sub-Neptune TOI-1468 c · Sub-Neptune TOI-2136 b · Sub-Neptune LTT 1445 A c · Rocky Terrestrial TOI-712 c · Sub-Neptune LP 890-9 b · Super-Earth TOI-2081 b · Sub-Neptune GJ 3929 b · Rocky Terrestrial HD 260655 c · Super-Earth HD 73583 c · Sub-Neptune TOI-1759 b · Sub-Neptune

Host System: TOI-1860

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,752 K — cooler than the Sun (5,778 K)

Estimated Age

0.13 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.940 R☉

Stellar Mass

0.990 M☉

Metallicity [Fe/H]

0.04

Extended Stellar Properties

Surface gravity (log g)

4.580 dex

Stellar density

1.771 g/cm³

Rotation period

4.43 days

Activity index (log R'HK)

-4.252

Metallicity ratio

[Fe/H]

Distance

45.86 parsec

Light-years 149.59 ly

V-band magnitude

8.40 mag

Voyager-speed travel 2,637,988 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

21.775 mas

Total Proper Motion

164.904 mas/yr

PM Right Ascension

-122.33 mas/yr

PM Declination

110.59 mas/yr

Galactic Cartesian (pc)

x = -0.301 · y = -0.317 · z = 0.899

Equatorial (J2000)

RA 226.45673° · Dec 64.04768°

Galactic ℓ, b

102.028° · 47.258°

Ecliptic λ, β

167.534° · 72.016°

HTM-20 index

-2118516842