Key parameters at a glance

A radius of 15.64 Earth radii
A mass of 718.30 Earth masses
Surface gravity around 2.94 g
An orbital period of 1.348 days
Semi-major axis 0.0238 AU
Equilibrium temperature 2,166 K (1893 °C)
Distance from Earth 1,611.80 light-years
Earth Similarity Index 0.057
Travel time at Voyager 1 speed 28,424,166 years

HATS-24 b Planet Profile

Physical Specs

Radius

15.64 R⊕

Radius (Jupiter)

1.395 R♃

Mass

718.30 M⊕

Mass (Jupiter)

2.260 M♃

Density

1.03 g/cm³

Surface Gravity

2.94 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.057

HZ Position Inner

Controversial No

Discovery

Year 2017

Method Transit

Facility HATSouth

Telescope Multiple Telescopes

Size rank in cohort

Rank by radius

#190of 1771

top 10.7%

This planet

15.64R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

NGTS-27 b 15.65 R⊕ TOI-1333 b 15.65 R⊕ HAT-P-9 b 15.61 R⊕

Metric	Earth	HATS-24 b	Jupiter
Radius (R⊕)	1.00	15.64	11.21
Mass (M⊕)	1.00	718.30	317.83
Density (g/cm³)	5.51	1.03	1.33
Surface Gravity (g)	1.00	2.94	2.53
Insolation (S⊕)	1.00	2,706.96	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	718.296 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 380589029

Gaia DR2

Gaia DR2 5911182735242698496

Gaia DR3

Gaia DR3 5911182735242698496

System

HATS-24

Percentile among Gas Giant cohort

Radius 15.637 R⊕ · percentile 89 / cohort 1771

Mass 718.296 M⊕ · percentile 58 / cohort 1747

Orbital period 1.35 d · percentile 2 / cohort 1533

Distance 494.18 pc · percentile 74 / cohort 1759

ESI 0.057 · percentile 7 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

1.348 days

Semi-major axis

0.0238 AU

Eccentricity

0.000

Inclination

85.97 °

Year Length

A year here lasts approximately 1.35 Earth days (0.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0238 AU.

Transit Fingerprint

Depth

1.846 %

Duration

2.407 h

Impact parameter b

0.276

Rp / R★

0.128010

Transit midpoint (BJD)

2,457,948.7093

Photometric dip

Transit produces a flux drop of 18,464 ppm lasting ≈ 2.41 h.

Extended Orbital Architecture

Planet / star radius ratio

0.128010

Semi-major axis / stellar radius

4.561

Impact parameter (b)

0.276

RV semi-amplitude (K)

396.000 m/s

Transit mid-time (BJD)

2,457,948.7093

Long. of periastron (ω)

90.00°

Angular separation (arcsec)

0.04820

Eq. Temperature

2,166K

(1893 °C)

Insolation (S⊕)

2,706.96

Earth = 1.00

Earth Similarity (ESI)

0.057

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

Bento et al. 2017

Instrument

Multiple Instruments

Publication

2017-06

Observation locale

Ground

Discovery cohort

Planets confirmed in 2017 at HATSouth (6 shown).

HATS-22 b · Gas Giant HATS-50 b · Gas Giant HATS-53 b · Gas Giant HATS-51 b · Gas Giant HATS-52 b · Gas Giant HATS-23 b · Gas Giant

Host System: HATS-24

Spectral Class

F-type yellow-white

Effective Temperature

6,125 K — hotter than the Sun (5,778 K)

Estimated Age

3.70 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.120 R☉

Stellar Mass

1.070 M☉

Metallicity [Fe/H]

-0.23

Extended Stellar Properties

Surface gravity (log g)

4.370 dex

Stellar density

1.059 g/cm³

Systemic radial velocity

-3.26 km/s

Rotational v·sin i

9.44 km/s

Metallicity ratio

[Fe/H]

Distance

494.18 parsec

Light-years 1,611.80 ly

V-band magnitude

12.92 mag

Voyager-speed travel 28,424,166 yr

Multi-band Host Photometry — 14 bands

Astrometric Data

Parallax

1.997 mas

Total Proper Motion

17.607 mas/yr

PM Right Ascension

1.03 mas/yr

PM Declination

-17.58 mas/yr

Galactic Cartesian (pc)

x = -0.009 · y = -0.473 · z = -0.881

Equatorial (J2000)

RA 268.89071° · Dec -61.74740°

Galactic ℓ, b

331.718° · -17.456°

Ecliptic λ, β

269.327° · -38.311°

HTM-20 index

-2107493531