Key parameters at a glance

A radius of 10.22 Earth radii
A mass of 75.32 Earth masses
Surface gravity around 0.72 g
An orbital period of 4.763 days
Semi-major axis 0.0542 AU
Equilibrium temperature 1,025 K (752 °C)
Distance from Earth 803.60 light-years
Earth Similarity Index 0.129
Travel time at Voyager 1 speed 14,171,418 years

HATS-5 b Planet Profile

Physical Specs

Radius

10.22 R⊕

Radius (Jupiter)

0.912 R♃

Mass

75.32 M⊕

Mass (Jupiter)

0.237 M♃

Density

0.39 g/cm³

Surface Gravity

0.72 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.129

HZ Position Inner

Controversial No

Discovery

Year 2014

Method Transit

Facility HATSouth

Telescope 0.18 m Takahashi Epsilon Astrograph

Size rank in cohort

Rank by radius

#1750of 1771

top 98.8%

This planet

10.22R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Kepler-816 b 10.24 R⊕ TOI-5349 b 10.20 R⊕ Kepler-693 b 10.18 R⊕

Metric	Earth	HATS-5 b	Jupiter
Radius (R⊕)	1.00	10.22	11.21
Mass (M⊕)	1.00	75.32	317.83
Density (g/cm³)	5.51	0.39	1.33
Surface Gravity (g)	1.00	0.72	2.53
Insolation (S⊕)	1.00	183.24	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	75.323 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 139733308

Gaia DR2

Gaia DR2 4899428146994060800

Gaia DR3

Gaia DR3 4899428146994060800

System

HATS-5

Percentile among Gas Giant cohort

Radius 10.223 R⊕ · percentile 1 / cohort 1771

Mass 75.323 M⊕ · percentile 2 / cohort 1747

Orbital period 4.76 d · percentile 35 / cohort 1533

Distance 246.38 pc · percentile 55 / cohort 1759

ESI 0.129 · percentile 34 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

4.763 days

Semi-major axis

0.0542 AU

Eccentricity

0.019

Inclination

89.30 °

Year Length

A year here lasts approximately 4.76 Earth days (1.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0542 AU.

Transit Fingerprint

Depth

1.316 %

Duration

2.986 h

Impact parameter b

0.158

Rp / R★

0.107600

Transit midpoint (BJD)

2,456,273.7907

Photometric dip

Transit produces a flux drop of 13,161 ppm lasting ≈ 2.99 h.

Extended Orbital Architecture

Planet / star radius ratio

0.107600

Semi-major axis / stellar radius

13.380

Impact parameter (b)

0.158

RV semi-amplitude (K)

30.000 m/s

Transit mid-time (BJD)

2,456,273.7907

Long. of periastron (ω)

204.00°

Angular separation (arcsec)

0.22000

Eq. Temperature

1,025K

(752 °C)

Insolation (S⊕)

183.24

Earth = 1.00

Earth Similarity (ESI)

0.129

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

Zhou et al. 2014

Instrument

Apogee 4K CCD Sensor

Publication

2014-06

Observation locale

Ground

Host System: HATS-5

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,304 K — cooler than the Sun (5,778 K)

Estimated Age

3.60 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.871 R☉

Stellar Mass

0.936 M☉

Metallicity [Fe/H]

0.19

Extended Stellar Properties

Surface gravity (log g)

4.530 dex

Stellar density

1.891 g/cm³

Systemic radial velocity

5.65 km/s

Rotational v·sin i

0.80 km/s

Metallicity ratio

[Fe/H]

Distance

246.38 parsec

Light-years 803.60 ly

V-band magnitude

12.60 mag

Voyager-speed travel 14,171,418 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

4.030 mas

Total Proper Motion

22.048 mas/yr

PM Right Ascension

-0.03 mas/yr

PM Declination

-22.05 mas/yr

Galactic Cartesian (pc)

x = 0.360 · y = 0.858 · z = -0.366

Equatorial (J2000)

RA 67.22285° · Dec -21.48206°

Galactic ℓ, b

218.873° · -40.505°

Ecliptic λ, β

60.678° · -42.631°

HTM-20 index

1346598546