Confirmed Exoplanet Discovered 2007

OGLE-TR-211 b

A gas giant orbiting the f-type yellow-white OGLE-TR-211, located approximately 4,942.1 light-years from Earth.

Key parameters at a glance

  • A radius of 15.24 Earth radii
  • A mass of 327.35 Earth masses
  • Surface gravity around 1.41 g
  • An orbital period of 3.677 days
  • Semi-major axis 0.0510 AU
  • Equilibrium temperature 1,686 K (1413 °C)
  • Distance from Earth 4,942.11 light-years
  • Earth Similarity Index 0.066
  • Travel time at Voyager 1 speed 87,154,130 years

OGLE-TR-211 b Planet Profile

Physical Specs

Radius
15.24 R⊕
Radius (Jupiter)
1.360 R♃
Mass
327.35 M⊕
Mass (Jupiter)
1.030 M♃
Density
0.42 g/cm³
Surface Gravity
1.41 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.066
HZ Position Unknown
Controversial No

Discovery

Year 2007
Method Transit
Facility OGLE
Telescope 1.3 m Warsaw University Telescope

Size rank in cohort

Rank by radius

#218of 1771

top 12.3%

This planet

15.24R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth OGLE-TR-211 b Jupiter
Radius (R⊕)1.0015.2411.21
Mass (M⊕)1.00327.35317.83
Density (g/cm³)5.510.421.33
Surface Gravity (g)1.001.412.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 327.351 M⊕ Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 390001646

Gaia DR2

Gaia DR2 5253607539857229568

Gaia DR3

Gaia DR3 5253607539857229568

System

OGLE-TR-211

Percentile among Gas Giant cohort

Radius 15.244 R⊕ · percentile 88 / cohort 1771
Mass 327.351 M⊕ · percentile 36 / cohort 1747
Orbital period 3.68 d · percentile 25 / cohort 1533
Distance 1,515.26 pc · percentile 90 / cohort 1759
ESI 0.066 · percentile 11 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
3.677 days
Semi-major axis
0.0510 AU
Eccentricity
0.000
Inclination
87.20 °

Year Length

A year here lasts approximately 3.68 Earth days (1.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0510 AU.

Transit Fingerprint

Depth

0.723 %

Duration

4.411 h

Transit midpoint (BJD)

2,453,428.3340

Photometric dip

Transit produces a flux drop of 7,230 ppm lasting ≈ 4.41 h.

Extended Orbital Architecture

Semi-major axis / stellar radius

7.032

RV semi-amplitude (K)

82.000 m/s

Transit mid-time (BJD)

2,453,428.3340

Angular separation (arcsec)

0.03370

Eq. Temperature

1,686K

(1413 °C)

Insolation (S⊕)

Earth = 1.00

Earth Similarity (ESI)

0.066

0 = alien, 1 = Earth-identical

Insufficient insolation data — 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

Udalski et al. 2008

Instrument

OGLE CCD Array

Publication

2008-04

Observation locale

Ground

Host System: OGLE-TR-211

Spectral Class

F-type yellow-white

Effective Temperature

6,325 K — hotter than the Sun (5,778 K)

Estimated Age

2.60 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.640 R☉

Stellar Mass

1.330 M☉

Metallicity [Fe/H]

0.11

Extended Stellar Properties

Surface gravity (log g)

4.220 dex

Stellar density

0.486 g/cm³

Metallicity ratio

[Fe/H]

Distance
1,515.26 parsec
Light-years 4,942.11 ly
V-band magnitude
15.36 mag
Voyager-speed travel 87,154,130 yr

Multi-band Host Photometry — 7 bands

13.415.615.56B15.36V15.07Gaia14.55TESS13.77J13.42H13.38K

Astrometric Data

Parallax

0.635 mas

Total Proper Motion

12.628 mas/yr

PM Right Ascension

-11.14 mas/yr

PM Declination

5.94 mas/yr

Galactic Cartesian (pc)

x = -0.435 · y = 0.158 · z = -0.887

Equatorial (J2000)

RA 160.05982° · Dec -62.45554°

Galactic ℓ, b

288.399° · -3.345°

Ecliptic λ, β

205.566° · -61.190°

HTM-20 index

570632942

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