OGLE-2015-BLG-1771L b
OGLE-2015-BLG-1771L b is a cold gas giant orbiting OGLE-2015-BLG-1771L in the constellation Sagittarius. It lies about 23,059 light-years from Earth and was discovered in 2020 using the microlensing method.
Is OGLE-2015-BLG-1771L b in the Habitable Zone?
The position of OGLE-2015-BLG-1771L b relative to the habitable zone of OGLE-2015-BLG-1771L cannot be precisely determined from the available orbital data.
Orbit and Year Length
OGLE-2015-BLG-1771L b orbits at an average distance of 0.850 AU — comparable to the inner Solar System.
How Was OGLE-2015-BLG-1771L b Discovered?
OGLE-2015-BLG-1771L b was discovered in 2020 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-2015-BLG-1771L b?
OGLE-2015-BLG-1771L b is 23,059.2 light-years (7,070.0 parsecs) from Earth. Light arriving here tonight left the planet about 23,059 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 405,841,920 years to make the journey.
The Host Star: OGLE-2015-BLG-1771L
OGLE-2015-BLG-1771L
- Mass
- 0.08 M☉
Planetary System
OGLE-2015-BLG-1771L b is the only planet known to orbit OGLE-2015-BLG-1771L so far.
OGLE-2015-BLG-1771L b — Complete Data
| Mass | 138.00 Earth masses (0.433 Jupiter masses) |
|---|---|
| Orbital distance | 0.850 AU |
| Distance from Earth | 23,059.2 light-years (7,070.0 parsecs) |
| Constellation | Sagittarius |
| Discovery method | Microlensing |
| Discovery facility | OGLE |
| Discovery year | 2020 |
Data: NASA Exoplanet Archive, last updated 2020-06-24. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About OGLE-2015-BLG-1771L b
Is OGLE-2015-BLG-1771L b habitable?
OGLE-2015-BLG-1771L b is not known to orbit within the habitable zone of OGLE-2015-BLG-1771L, and as a cold gas giant it is an unlikely candidate for life as we know it.
How far away is OGLE-2015-BLG-1771L b?
OGLE-2015-BLG-1771L b is about 23,059 light-years from Earth in the constellation Sagittarius. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 405,841,920 years to get there.
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