Key parameters at a glance
- A radius of 11.42 Earth radii
- A mass of 174.80 Earth masses
- Surface gravity around 1.34 g
- An orbital period of 4.014 days
- Semi-major axis 0.0473 AU
- Equilibrium temperature 1,019 K (746 °C)
- Distance from Earth 3,484.42 light-years
- Earth Similarity Index 0.139
- Travel time at Voyager 1 speed 61,447,786 years
- Almost certainly tidally locked to its host star given the close orbit
OGLE-TR-111 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1602of 1771
top 90.4%
This planet
11.42R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | OGLE-TR-111 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 11.42 | 11.21 |
| Mass (M⊕) | 1.00 | 174.80 | 317.83 |
| Density (g/cm³) | 5.51 | 0.65 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.34 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 174.799 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 465390152
Gaia DR2
Gaia DR2 5242089296564780416
Gaia DR3
Gaia DR3 5242089296564780416
System
OGLE-TR-111
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 4.01 Earth days (1.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0473 AU.
Transit Fingerprint
Depth
1.687 %
Duration
2.680 h
Impact parameter b
0.350
Rp / R★
0.126100
Transit midpoint (BJD)
2,454,092.8072
Photometric dip
Transit produces a flux drop of 16,870 ppm lasting ≈ 2.68 h.
Extended Orbital Architecture
Planet / star radius ratio
0.126100
Semi-major axis / stellar radius
12.300
Impact parameter (b)
0.350
RV semi-amplitude (K)
78.000 m/s
Transit mid-time (BJD)
2,454,092.8072
Angular separation (arcsec)
0.04430
Eq. Temperature
1,019K
(746 °C)
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.139
0 = alien, 1 = Earth-identical
Insufficient insolation data — the dayside is scorched. Close-orbiting tidally-locked around a cool host.
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
Pont et al. 2004Instrument
OGLE CCD Array
Publication
2004-10
Observation locale
Ground
Discovery cohort
Planets confirmed in 2004 at OGLE (4 shown).
Host System: OGLE-TR-111
Spectral Class
K-type orange
Effective Temperature
5,040 K — cooler than the Sun (5,778 K)
Estimated Age
8.80 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.830 R☉
Stellar Mass
0.820 M☉
Metallicity [Fe/H]
0.19
Extended Stellar Properties
Surface gravity (log g)
4.536 dex
Stellar density
2.140 g/cm³
Systemic radial velocity
25.15 km/s
Rotational v·sin i
1.00 km/s
Multi-band Host Photometry — 7 bands
Astrometric Data
Parallax
0.912 mas
Total Proper Motion
10.759 mas/yr
PM Right Ascension
-8.84 mas/yr
PM Declination
6.13 mas/yr
Galactic Cartesian (pc)
x = -0.458 · y = 0.137 · z = -0.878
Equatorial (J2000)
RA 163.32412° · Dec -61.40570°
Galactic ℓ, b
289.279° · -1.706°
Ecliptic λ, β
205.960° · -59.340°
HTM-20 index
-1684054439
Observation Record
Photometric series
5
RV measurements
2
Archive notes
2
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