OGLE-2005-BLG-390L b
OGLE-2005-BLG-390L b is a super-Earth orbiting OGLE-2005-BLG-390L in the constellation Scorpius. It lies about 21,526 light-years from Earth and was discovered in 2005 using the microlensing method.
Is OGLE-2005-BLG-390L b in the Habitable Zone?
The position of OGLE-2005-BLG-390L b relative to the habitable zone of OGLE-2005-BLG-390L cannot be precisely determined from the available orbital data.
Temperature on OGLE-2005-BLG-390L b
The equilibrium temperature of OGLE-2005-BLG-390L b is about 50 K (-223 °C) — well below freezing. This estimate ignores any atmosphere, which could change surface temperatures dramatically — Earth's greenhouse effect adds about 33 °C.
Orbit and Year Length
A year on OGLE-2005-BLG-390L b — one full orbit around OGLE-2005-BLG-390L — lasts 3,285.0 Earth days, longer than an Earth year. It orbits at an average distance of 2.600 AU.
How Was OGLE-2005-BLG-390L b Discovered?
OGLE-2005-BLG-390L b was discovered in 2005 using the microlensing method, with observations from OGLE.
Gravitational microlensing detects a planet when its host star passes in front of a more distant background star, and the planet's gravity adds a brief, telltale spike to the magnified starlight. It can find planets thousands of light-years away.
How Far Away Is OGLE-2005-BLG-390L b?
OGLE-2005-BLG-390L b is 21,526.3 light-years (6,600.0 parsecs) from Earth. Light arriving here tonight left the planet about 21,526 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 378,862,880 years to make the journey.
The Host Star: OGLE-2005-BLG-390L
OGLE-2005-BLG-390L
- Mass
- 0.22 M☉
Planetary System
OGLE-2005-BLG-390L b is the only planet known to orbit OGLE-2005-BLG-390L so far.
OGLE-2005-BLG-390L b — Complete Data
| Mass | 5.50 Earth masses (0.017 Jupiter masses) |
|---|---|
| Orbital period | 3,285.00 days |
| Orbital distance | 2.600 AU |
| Equilibrium temperature | 50 K (-223 °C) |
| Distance from Earth | 21,526.3 light-years (6,600.0 parsecs) |
| Constellation | Scorpius |
| Discovery method | Microlensing |
| Discovery facility | OGLE |
| Discovery year | 2005 |
Data: NASA Exoplanet Archive, last updated 2019-12-05. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About OGLE-2005-BLG-390L b
Is OGLE-2005-BLG-390L b habitable?
OGLE-2005-BLG-390L b is not known to orbit within the habitable zone of OGLE-2005-BLG-390L, and as a super-Earth it is an unlikely candidate for life as we know it.
How far away is OGLE-2005-BLG-390L b?
OGLE-2005-BLG-390L b is about 21,526 light-years from Earth in the constellation Scorpius. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 378,862,880 years to get there.
How long is a year on OGLE-2005-BLG-390L b?
One orbit around OGLE-2005-BLG-390L takes 3,285.0 Earth days.
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