OGLE-2017-BLG-1691L b
OGLE-2017-BLG-1691L b is a Neptune-like planet orbiting OGLE-2017-BLG-1691L in the constellation Ophiuchus. It lies about 23,777 light-years from Earth and was discovered in 2022 using the microlensing method.
Is OGLE-2017-BLG-1691L b in the Habitable Zone?
The position of OGLE-2017-BLG-1691L b relative to the habitable zone of OGLE-2017-BLG-1691L cannot be precisely determined from the available orbital data.
Orbit and Year Length
OGLE-2017-BLG-1691L b orbits at an average distance of 2.410 AU.
How Was OGLE-2017-BLG-1691L b Discovered?
OGLE-2017-BLG-1691L b was discovered in 2022 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-2017-BLG-1691L b?
OGLE-2017-BLG-1691L b is 23,776.8 light-years (7,290.0 parsecs) from Earth. Light arriving here tonight left the planet about 23,777 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 418,471,680 years to make the journey.
The Host Star: OGLE-2017-BLG-1691L
OGLE-2017-BLG-1691L
- Mass
- 0.45 M☉
Planetary System
OGLE-2017-BLG-1691L b is the only planet known to orbit OGLE-2017-BLG-1691L so far.
OGLE-2017-BLG-1691L b — Complete Data
| Mass | 14.62 Earth masses (0.046 Jupiter masses) |
|---|---|
| Orbital distance | 2.410 AU |
| Distance from Earth | 23,776.8 light-years (7,290.0 parsecs) |
| Constellation | Ophiuchus |
| Discovery method | Microlensing |
| Discovery facility | OGLE |
| Discovery year | 2022 |
Data: NASA Exoplanet Archive, last updated 2022-10-31. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About OGLE-2017-BLG-1691L b
Is OGLE-2017-BLG-1691L b habitable?
OGLE-2017-BLG-1691L b is not known to orbit within the habitable zone of OGLE-2017-BLG-1691L, and as a Neptune-like planet it is an unlikely candidate for life as we know it.
How far away is OGLE-2017-BLG-1691L b?
OGLE-2017-BLG-1691L b is about 23,777 light-years from Earth in the constellation Ophiuchus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 418,471,680 years to get there.
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