Key parameters at a glance
- A radius of 15.49 Earth radii
- A mass of 711.94 Earth masses
- Surface gravity around 2.97 g
- An orbital period of 1.367 days
- Semi-major axis 0.0250 AU
- Equilibrium temperature 1,834 K (1561 °C)
- Distance from Earth 1,810.60 light-years
- Earth Similarity Index 0.070
- Travel time at Voyager 1 speed 31,929,979 years
HATS-52 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#198of 1771
top 11.1%
This planet
15.49R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | HATS-52 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 15.49 | 11.21 |
| Mass (M⊕) | 1.00 | 711.94 | 317.83 |
| Density (g/cm³) | 5.51 | 1.06 | 1.33 |
| Surface Gravity (g) | 1.00 | 2.97 | 2.53 |
| Insolation (S⊕) | 1.00 | 1,310.22 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 711.939 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 19684256
Gaia DR2
Gaia DR2 5631530950664938240
Gaia DR3
Gaia DR3 5631530950664938240
System
HATS-52
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 1.37 Earth days (0.4% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.0250 AU.
Transit Fingerprint
Depth
2.107 %
Duration
2.090 h
Impact parameter b
0.481
Rp / R★
0.135200
Transit midpoint (BJD)
2,456,929.0304
Photometric dip
Transit produces a flux drop of 21,070 ppm lasting ≈ 2.09 h.
Extended Orbital Architecture
Planet / star radius ratio
0.135200
Semi-major axis / stellar radius
5.140
Impact parameter (b)
0.481
RV semi-amplitude (K)
380.000 m/s
Transit mid-time (BJD)
2,456,929.0304
Angular separation (arcsec)
0.04500
Eq. Temperature
1,834K
(1561 °C)
Insolation (S⊕)
1,310.22
Earth = 1.00
Earth Similarity (ESI)
0.070
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
Henning et al. 2018Instrument
Apogee 4K CCD Sensor
Publication
2018-02
Observation locale
Ground
Discovery cohort
Planets confirmed in 2017 at HATSouth (6 shown).
Host System: HATS-52
Spectral Class
F-type yellow-white
Effective Temperature
6,010 K — hotter than the Sun (5,778 K)
Estimated Age
1.20 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.046 R☉
Stellar Mass
1.111 M☉
Metallicity [Fe/H]
-0.28
Extended Stellar Properties
Surface gravity (log g)
4.445 dex
Stellar density
1.370 g/cm³
Systemic radial velocity
13.46 km/s
Rotational v·sin i
4.59 km/s
Metallicity ratio
[M/H]
Multi-band Host Photometry — 14 bands
Astrometric Data
Parallax
1.773 mas
Total Proper Motion
29.193 mas/yr
PM Right Ascension
-20.01 mas/yr
PM Declination
21.25 mas/yr
Galactic Cartesian (pc)
x = -0.656 · y = 0.548 · z = -0.519
Equatorial (J2000)
RA 140.08759° · Dec -31.26921°
Galactic ℓ, b
258.646° · 12.917°
Ecliptic λ, β
155.647° · -43.977°
HTM-20 index
1338244725
Similar Worlds
HATS-3 b
Gas Giant · F-type yellow-white
Radius 15.48 R⊕ · 1,341.2 ly
WASP-194 b
Gas Giant · F-type yellow-white
Radius 15.48 R⊕ · 1,555.2 ly
WASP-24 b
Gas Giant · F-type yellow-white
Radius 15.47 R⊕ · 1,050.6 ly
WASP-14 b
Gas Giant · F-type yellow-white
Radius 15.47 R⊕ · 528.4 ly
WASP-159 b
Gas Giant · F-type yellow-white
Radius 15.47 R⊕ · 2,333.3 ly
WASP-20 b
Gas Giant · F-type yellow-white
Radius 15.47 R⊕ · 691.0 ly