OGLE-TR-10 b
OGLE-TR-10 b is a hot Jupiter orbiting OGLE-TR-10 in the constellation Sagittarius. It lies about 4,387 light-years from Earth and was discovered in 2004 using the transit method.
How Big Is OGLE-TR-10 b?
OGLE-TR-10 b has a radius of 14.01 times that of Earth, or 1.25 times the radius of Jupiter. Its mass is 197 times that of Earth, giving it a density of 0.40 g/cm³ — closer to gas planets like Jupiter (1.33 g/cm³).
Is OGLE-TR-10 b in the Habitable Zone?
OGLE-TR-10 b orbits inside the inner edge of the habitable zone of OGLE-TR-10. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of OGLE-TR-10: 0.922–2.163 AU (conservative: 1.168–2.051 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-10 b — one full orbit around OGLE-TR-10 — lasts 3.10 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.043 AU — closer to its star than Mercury is to the Sun.
How Was OGLE-TR-10 b Discovered?
OGLE-TR-10 b was discovered in 2004 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-10 b?
OGLE-TR-10 b is 4,386.7 light-years (1,345.0 parsecs) from Earth. Light arriving here tonight left the planet about 4,387 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 77,205,920 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-10 b scores 0.06, ranking #5,055 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: OGLE-TR-10
OGLE-TR-10
- Surface temperature
- 5,950 K (Sun: 5,772 K)
- Mass
- 1.14 M☉
- Radius
- 1.17 R☉
- Luminosity
- 1.5417 L☉
Planetary System
OGLE-TR-10 b is the only planet known to orbit OGLE-TR-10 so far.
OGLE-TR-10 b — Complete Data
| Radius | 14.011 Earth radii (1.250 Jupiter radii) |
|---|---|
| Mass | 197.05 Earth masses (0.620 Jupiter masses) |
| Density | 0.40 g/cm³ (Earth: 5.51) |
| Orbital period | 3.10 days |
| Orbital distance | 0.043 AU |
| Earth Similarity Index | 0.06 |
| Distance from Earth | 4,386.7 light-years (1,345.0 parsecs) |
| Constellation | Sagittarius |
| Discovery method | Transit |
| Discovery facility | OGLE |
| Discovery year | 2004 |
Data: NASA Exoplanet Archive, last updated 2014-05-14. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About OGLE-TR-10 b
Is OGLE-TR-10 b habitable?
No — OGLE-TR-10 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-10 b?
OGLE-TR-10 b is about 4,387 light-years from Earth in the constellation Sagittarius. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 77,205,920 years to get there.
How big is OGLE-TR-10 b compared to Earth?
OGLE-TR-10 b has 14.01 times the radius of Earth and about 197 times its mass.
How long is a year on OGLE-TR-10 b?
One orbit around OGLE-TR-10 takes 3.1 Earth days — short enough that 118 of its years would fit into one Earth year.
Explore OGLE-TR-10 b in the app
Browse, filter and compare 6,000+ exoplanets on iPhone, iPad and Apple Watch — with habitable-zone views, widgets and offline data.
