Key parameters at a glance
- A radius of 18.03 Earth radii
- A mass of 263.80 Earth masses
- Surface gravity around 0.81 g
- An orbital period of 3.619 days
- Semi-major axis 0.0507 AU
- Equilibrium temperature 1,596 K (1323 °C)
- Distance from Earth 3,080.88 light-years
- Earth Similarity Index 0.066
- Travel time at Voyager 1 speed 54,331,304 years
HATS-11 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#73of 1771
top 4.1%
This planet
18.03R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | HATS-11 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 18.03 | 11.21 |
| Mass (M⊕) | 1.00 | 263.80 | 317.83 |
| Density (g/cm³) | 5.51 | 0.32 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.81 | 2.53 |
| Insolation (S⊕) | 1.00 | 1,027.30 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 263.799 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 11439959
Gaia DR2
Gaia DR2 6771149120491232768
Gaia DR3
Gaia DR3 6771149120491232768
System
HATS-11
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 3.62 Earth days (1.0% of a terrestrial year) on a highly eccentric trajectory at a mean orbital distance of 0.0507 AU.
Transit Fingerprint
Depth
1.373 %
Duration
4.368 h
Impact parameter b
0.140
Rp / R★
0.107100
Transit midpoint (BJD)
2,457,313.2737
Photometric dip
Transit produces a flux drop of 13,734 ppm lasting ≈ 4.37 h.
Extended Orbital Architecture
Planet / star radius ratio
0.107100
Semi-major axis / stellar radius
6.920
Impact parameter (b)
0.140
RV semi-amplitude (K)
112.000 m/s
Transit mid-time (BJD)
2,457,313.2737
Angular separation (arcsec)
0.05370
Eq. Temperature
1,596K
(1323 °C)
Insolation (S⊕)
1,027.30
Earth = 1.00
Earth Similarity (ESI)
0.066
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
Rabus et al. 2016Instrument
Apogee 4K CCD Sensor
Publication
2016-10
Observation locale
Ground
Discovery cohort
Planets confirmed in 2016 at HATSouth (12 shown).
Host System: HATS-11
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
6,563 K — hotter than the Sun (5,778 K)
Estimated Age
7.70 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
1.540 R☉
Stellar Mass
1.330 M☉
Metallicity [Fe/H]
0.03
Extended Stellar Properties
Surface gravity (log g)
4.190 dex
Stellar density
0.479 g/cm³
Systemic radial velocity
-58.32 km/s
Rotational v·sin i
3.80 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 15 bands
Astrometric Data
Parallax
1.031 mas
Total Proper Motion
20.240 mas/yr
PM Right Ascension
2.14 mas/yr
PM Declination
-20.13 mas/yr
Galactic Cartesian (pc)
x = 0.307 · y = -0.872 · z = -0.381
Equatorial (J2000)
RA 289.40076° · Dec -22.39001°
Galactic ℓ, b
15.356° · -15.512°
Ecliptic λ, β
287.883° · -0.147°
HTM-20 index
1539559690
Similar Worlds
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Gas Giant · G-type yellow (Sun-like)
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