OGLE-2018-BLG-0740L b
OGLE-2018-BLG-0740L b is a cold gas giant orbiting the G V star OGLE-2018-BLG-0740L in the constellation Sagittarius. It lies about 10,437 light-years from Earth and was discovered in 2019 using the microlensing method.
Is OGLE-2018-BLG-0740L b in the Habitable Zone?
The position of OGLE-2018-BLG-0740L b relative to the habitable zone of OGLE-2018-BLG-0740L cannot be precisely determined from the available orbital data.
Orbit and Year Length
A year on OGLE-2018-BLG-0740L b — one full orbit around OGLE-2018-BLG-0740L — lasts 5,480.0 Earth days, longer than Jupiter's 12-year orbit. It orbits at an average distance of 5.000 AU.
How Was OGLE-2018-BLG-0740L b Discovered?
OGLE-2018-BLG-0740L b was discovered in 2019 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-2018-BLG-0740L b?
OGLE-2018-BLG-0740L b is 10,437.0 light-years (3,200.0 parsecs) from Earth. Light arriving here tonight left the planet about 10,437 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 183,691,200 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-2018-BLG-0740L b scores 0.11, ranking #4,389 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: OGLE-2018-BLG-0740L
OGLE-2018-BLG-0740L
- Spectral type
- G V
- Surface temperature
- 5,912 K (Sun: 5,772 K)
- Mass
- 1.00 M☉
Planetary System
OGLE-2018-BLG-0740L b is the only planet known to orbit OGLE-2018-BLG-0740L so far.
OGLE-2018-BLG-0740L b — Complete Data
| Mass | 1,500.00 Earth masses (4.800 Jupiter masses) |
|---|---|
| Orbital period | 5,480.00 days |
| Orbital distance | 5.000 AU |
| Earth Similarity Index | 0.11 |
| Distance from Earth | 10,437.0 light-years (3,200.0 parsecs) |
| Constellation | Sagittarius |
| Discovery method | Microlensing |
| Discovery facility | OGLE |
| Discovery year | 2019 |
Data: NASA Exoplanet Archive, last updated 2019-12-05. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About OGLE-2018-BLG-0740L b
Is OGLE-2018-BLG-0740L b habitable?
OGLE-2018-BLG-0740L b is not known to orbit within the habitable zone of OGLE-2018-BLG-0740L, and as a cold gas giant it is an unlikely candidate for life as we know it.
How far away is OGLE-2018-BLG-0740L b?
OGLE-2018-BLG-0740L b is about 10,437 light-years from Earth in the constellation Sagittarius. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 183,691,200 years to get there.
How long is a year on OGLE-2018-BLG-0740L b?
One orbit around OGLE-2018-BLG-0740L takes 5,480.0 Earth days.
Explore OGLE-2018-BLG-0740L 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.
