Confirmed Exoplanet Discovered 2015

HATS-14 b

A gas giant orbiting the g-type yellow (sun-like) HATS-14, located approximately 1,673.2 light-years from Earth.

Key parameters at a glance

  • A radius of 11.65 Earth radii
  • A mass of 340.40 Earth masses
  • Surface gravity around 2.51 g
  • An orbital period of 2.767 days
  • Semi-major axis 0.0382 AU
  • Equilibrium temperature 1,276 K (1003 °C)
  • Distance from Earth 1,673.22 light-years
  • Earth Similarity Index 0.118
  • Travel time at Voyager 1 speed 29,507,165 years

HATS-14 b Planet Profile

Physical Specs

Radius
11.65 R⊕
Radius (Jupiter)
1.039 R♃
Mass
340.40 M⊕
Mass (Jupiter)
1.071 M♃
Density
1.19 g/cm³
Surface Gravity
2.51 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.118
HZ Position Inner
Controversial No

Discovery

Year 2015
Method Transit
Facility HATSouth
Telescope 0.18 m Takahashi Epsilon Astrograph

Size rank in cohort

Rank by radius

#1574of 1771

top 88.8%

This planet

11.65R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth HATS-14 b Jupiter
Radius (R⊕)1.0011.6511.21
Mass (M⊕)1.00340.40317.83
Density (g/cm³)5.511.191.33
Surface Gravity (g)1.002.512.53
Insolation (S⊕)1.00505.880.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 340.396 M⊕ Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 29344935

Gaia DR2

Gaia DR2 6805149288493408640

Gaia DR3

Gaia DR3 6805149288493408640

System

HATS-14

Percentile among Gas Giant cohort

Radius 11.646 R⊕ · percentile 11 / cohort 1771
Mass 340.396 M⊕ · percentile 37 / cohort 1747
Orbital period 2.77 d · percentile 13 / cohort 1533
Distance 513.01 pc · percentile 75 / cohort 1759
ESI 0.118 · percentile 31 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
2.767 days
Semi-major axis
0.0382 AU
Eccentricity
0.142
Inclination
88.83 °

Year Length

A year here lasts approximately 2.77 Earth days (0.8% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.0382 AU.

Transit Fingerprint

Depth

1.495 %

Duration

2.642 h

Impact parameter b

0.180

Rp / R★

0.114500

Transit midpoint (BJD)

2,456,408.7646

Photometric dip

Transit produces a flux drop of 14,947 ppm lasting ≈ 2.64 h.

Extended Orbital Architecture

Planet / star radius ratio

0.114500

Semi-major axis / stellar radius

8.800

Impact parameter (b)

0.180

RV semi-amplitude (K)

158.000 m/s

Transit mid-time (BJD)

2,456,408.7646

Sky-projected obliquity (λ)

76.00°

Angular separation (arcsec)

0.07440

Eq. Temperature

1,276K

(1003 °C)

Insolation (S⊕)

505.88

Earth = 1.00

Earth Similarity (ESI)

0.118

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

Mancini et al. 2015

Instrument

Apogee 4K CCD Sensor

Publication

2015-08

Observation locale

Ground

Host System: HATS-14

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,346 K — cooler than the Sun (5,778 K)

Estimated Age

4.90 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.933 R☉

Stellar Mass

0.967 M☉

Metallicity [Fe/H]

0.33

Extended Stellar Properties

Surface gravity (log g)

4.484 dex

Stellar density

1.682 g/cm³

Systemic radial velocity

30.19 km/s

Rotational v·sin i

3.80 km/s

Metallicity ratio

[Fe/H]

Distance
513.01 parsec
Light-years 1,673.22 ly
V-band magnitude
14.05 mag
Voyager-speed travel 29,507,165 yr

Multi-band Host Photometry — 11 bands

8.914.814.84B14.05V13.77Gaia13.24TESS12.52J12.13H12.04K11.93W112.03W211.66W38.90W4

Astrometric Data

Parallax

1.921 mas

Total Proper Motion

9.937 mas/yr

PM Right Ascension

1.05 mas/yr

PM Declination

-9.88 mas/yr

Galactic Cartesian (pc)

x = 0.617 · y = -0.657 · z = -0.433

Equatorial (J2000)

RA 313.21548° · Dec -25.68738°

Galactic ℓ, b

20.031° · -37.083°

Ecliptic λ, β

308.524° · -7.842°

HTM-20 index

126921479

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