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UKIRT-2017-BLG-001L b

Cold Gas Giant Sagittarius

UKIRT-2017-BLG-001L b is a cold gas giant orbiting UKIRT-2017-BLG-001L in the constellation Sagittarius. It lies about 20,548 light-years from Earth and was discovered in 2018 using the microlensing method.

407×Earth mass
20,548 lyDistance
2018Discovered

Is UKIRT-2017-BLG-001L b in the Habitable Zone?

The position of UKIRT-2017-BLG-001L b relative to the habitable zone of UKIRT-2017-BLG-001L cannot be precisely determined from the available orbital data.

Orbit and Year Length

UKIRT-2017-BLG-001L b orbits at an average distance of 4.180 AU.

How Was UKIRT-2017-BLG-001L b Discovered?

UKIRT-2017-BLG-001L b was discovered in 2018 using the microlensing method, with observations from Mauna Kea Observatory.

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 UKIRT-2017-BLG-001L b?

UKIRT-2017-BLG-001L b is 20,547.8 light-years (6,300.0 parsecs) from Earth. Light arriving here tonight left the planet about 20,548 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 361,641,280 years to make the journey.

The Host Star: UKIRT-2017-BLG-001L

UKIRT-2017-BLG-001L

Mass
0.81 M☉

Planetary System

UKIRT-2017-BLG-001L b is the only planet known to orbit UKIRT-2017-BLG-001L so far.

UKIRT-2017-BLG-001L b — Complete Data

Mass407.00 Earth masses (1.280 Jupiter masses)
Orbital distance4.180 AU
Distance from Earth20,547.8 light-years (6,300.0 parsecs)
ConstellationSagittarius
Discovery methodMicrolensing
Discovery facilityMauna Kea Observatory
Discovery year2018

Data: NASA Exoplanet Archive, last updated 2019-12-05. Earth Similarity Index: PHL @ UPR Arecibo.

Frequently Asked Questions About UKIRT-2017-BLG-001L b

Is UKIRT-2017-BLG-001L b habitable?

UKIRT-2017-BLG-001L b is not known to orbit within the habitable zone of UKIRT-2017-BLG-001L, and as a cold gas giant it is an unlikely candidate for life as we know it.

How far away is UKIRT-2017-BLG-001L b?

UKIRT-2017-BLG-001L b is about 20,548 light-years from Earth in the constellation Sagittarius. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 361,641,280 years to get there.

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