Confirmed Exoplanet Discovered 2022

TOI-1516 b

A gas giant orbiting the f-type yellow-white TOI-1516, located approximately 805.8 light-years from Earth.

Key parameters at a glance

  • A radius of 15.24 Earth radii
  • A mass of 1,004.34 Earth masses
  • Surface gravity around 4.32 g
  • An orbital period of 2.056 days
  • Equilibrium temperature 1,839 K (1566 °C)
  • Distance from Earth 805.78 light-years
  • Earth Similarity Index 0.074
  • Travel time at Voyager 1 speed 14,209,955 years

TOI-1516 b Planet Profile

Physical Specs

Radius
15.24 R⊕
Radius (Jupiter)
1.360 R♃
Mass
1,004.34 M⊕
Mass (Jupiter)
3.160 M♃
Density
1.56 g/cm³
Surface Gravity
4.32 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.074
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

#216of 1771

top 12.1%

This planet

15.24R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth TOI-1516 b Jupiter
Radius (R⊕)1.0015.2411.21
Mass (M⊕)1.001,004.34317.83
Density (g/cm³)5.511.561.33
Surface Gravity (g)1.004.322.53
Insolation (S⊕)1.001,899.830.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 1,004.338 M⊕ Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 376637093

Gaia DR2

Gaia DR2 2226107083103120640

Gaia DR3

Gaia DR3 2226107083103120640

System

TOI-1516

Percentile among Gas Giant cohort

Radius 15.244 R⊕ · percentile 88 / cohort 1771
Mass 1,004.338 M⊕ · percentile 66 / cohort 1747
Orbital period 2.06 d · percentile 7 / cohort 1533
Distance 247.05 pc · percentile 55 / cohort 1759
ESI 0.074 · percentile 15 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
2.056 days
Semi-major axis
AU
Eccentricity
Inclination
90.00 °

Year Length

A year here lasts approximately 2.06 Earth days (0.6% of a terrestrial year).

Transit Fingerprint

Depth

1.745 %

Duration

2.826 h

Impact parameter b

0.090

Rp / R★

0.122400

Transit midpoint (BJD)

2,458,765.3250

Photometric dip

Transit produces a flux drop of 17,453 ppm lasting ≈ 2.83 h.

Extended Orbital Architecture

Planet / star radius ratio

0.122400

Semi-major axis / stellar radius

6.220

Impact parameter (b)

0.090

RV semi-amplitude (K)

460.700 m/s

Transit mid-time (BJD)

2,458,765.3250

Eq. Temperature

1,839K

(1566 °C)

Insolation (S⊕)

1,899.83

Earth = 1.00

Earth Similarity (ESI)

0.074

0 = alien, 1 = Earth-identical

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

Detection Signatures

Transit photometry

A transit dip has been observed from at least one telescope.

Radial velocity

Stellar wobble has been measured spectroscopically.

Discovery Paper

Primary reference

Kab Aacute Th et al. 2022

Instrument

TESS CCD Array

Publication

2022-05

Observation locale

Space

Host System: TOI-1516

Spectral Class

F-type yellow-white

Effective Temperature

6,520 K — hotter than the Sun (5,778 K)

Estimated Age

4.82 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.140 R☉

Stellar Mass

1.140 M☉

Metallicity [Fe/H]

-0.05

Extended Stellar Properties

Surface gravity (log g)

4.250 dex

Stellar density

1.090 g/cm³

Rotational v·sin i

11.80 km/s

Metallicity ratio

[Fe/H]

Distance
247.05 parsec
Light-years 805.78 ly
V-band magnitude
10.86 mag
Voyager-speed travel 14,209,955 yr

Multi-band Host Photometry — 11 bands

9.411.211.22B10.86V10.72Gaia10.38TESS9.92J9.70H9.67K9.60W19.63W29.61W39.41W4

Astrometric Data

Parallax

4.019 mas

Total Proper Motion

16.277 mas/yr

PM Right Ascension

16.22 mas/yr

PM Declination

-1.33 mas/yr

Galactic Cartesian (pc)

x = 0.329 · y = -0.119 · z = 0.937

Equatorial (J2000)

RA 340.08462° · Dec 69.50373°

Galactic ℓ, b

111.852° · 9.503°

Ecliptic λ, β

38.635° · 65.073°

HTM-20 index

-1447226769

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