OGLE-TR-211 b
OGLE-TR-211 b is a hot Jupiter orbiting OGLE-TR-211 in the constellation Carina. It lies about 4,942 light-years from Earth and was discovered in 2007 using the transit method.
How Big Is OGLE-TR-211 b?
OGLE-TR-211 b has a radius of 15.24 times that of Earth, or 1.36 times the radius of Jupiter. Its mass is 327 times that of Earth.
Is OGLE-TR-211 b in the Habitable Zone?
OGLE-TR-211 b orbits inside the inner edge of the habitable zone of OGLE-TR-211. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of OGLE-TR-211: 1.427–3.321 AU (conservative: 1.807–3.149 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
See the full interactive habitable-zone view in the Exoplanet Explorer app ›
Orbit and Year Length
A year on OGLE-TR-211 b — one full orbit around OGLE-TR-211 — lasts 3.68 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.051 AU — closer to its star than Mercury is to the Sun.
How Was OGLE-TR-211 b Discovered?
OGLE-TR-211 b was discovered in 2007 using the transit method, with observations from OGLE.
The transit method watches a star for the tiny, regular dip in brightness that occurs when a planet crosses in front of it. The depth and timing of these dips reveal the planet's size and orbital period.
How Far Away Is OGLE-TR-211 b?
OGLE-TR-211 b is 4,942.1 light-years (1,515.3 parsecs) from Earth. Light arriving here tonight left the planet about 4,942 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 86,980,960 years to make the journey.
Earth Similarity Index
The Earth Similarity Index (ESI) scores how physically similar a planet is to Earth, from 0 to 1, based on radius, density, escape velocity and surface temperature. OGLE-TR-211 b scores 0.06, ranking #5,133 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: OGLE-TR-211
OGLE-TR-211
- Surface temperature
- 6,325 K (Sun: 5,772 K)
- Mass
- 1.33 M☉
- Radius
- 1.64 R☉
Planetary System
OGLE-TR-211 b is the only planet known to orbit OGLE-TR-211 so far.
OGLE-TR-211 b — Complete Data
| Radius | 15.244 Earth radii (1.360 Jupiter radii) |
|---|---|
| Mass | 327.35 Earth masses (1.030 Jupiter masses) |
| Orbital period | 3.68 days |
| Orbital distance | 0.051 AU |
| Earth Similarity Index | 0.06 |
| Distance from Earth | 4,942.1 light-years (1,515.3 parsecs) |
| Constellation | Carina |
| Discovery method | Transit |
| Discovery facility | OGLE |
| Discovery year | 2007 |
Data: NASA Exoplanet Archive, last updated 2014-05-14. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About OGLE-TR-211 b
Is OGLE-TR-211 b habitable?
No — OGLE-TR-211 b orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is OGLE-TR-211 b?
OGLE-TR-211 b is about 4,942 light-years from Earth in the constellation Carina. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 86,980,960 years to get there.
How big is OGLE-TR-211 b compared to Earth?
OGLE-TR-211 b has 15.24 times the radius of Earth and about 327 times its mass.
How long is a year on OGLE-TR-211 b?
One orbit around OGLE-TR-211 takes 3.7 Earth days — short enough that 99 of its years would fit into one Earth year.
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