Star system, 35 light-years
L 98-59 and its five planets
L 98-59 f is an exoplanet about 1.48 times Earth's width (a size estimated from its mass), 35 light-years away, orbiting at the edge of its star's computed habitable zone.
L 98-59 is a star of spectral type M3 V, 35 light-years from us, with five known planets. This page takes them one at a time.
Drawn at the system's own scale, every orbit from the Archive's numbers.
What is measured, what is computed, what is imagined.
measured The period, and where the table says so the width and the mass, by the method named in each section.
computed Anything marked computed: the size of an orbit where Kepler's third law corrects the table, the temperature of a bare ball at that distance, the starlight received, and the habitable zone.
imagined The picture is an artist's impression. Nobody has seen the surface of a planet of another star: its colour, clouds and land are not known, and the share picture says so in its corner.
The planets
L 98-59 b
L 98-59 b is an exoplanet 0.837 times Earth's width, 35 light-years away, orbiting closer to its star than the habitable zone we compute for it.
- Width
- 0.837 × Earth's measured
- Mass
- 0.46 times Earth's measured
- One year
- 2.25311 days measured
- Distance from its star
- 0.0223 au from the Archive
- Temperature of a bare ball there
- 567 K computed, not measured
- Starlight, against Earth's
- 24.5 × computed
It was found as a small, regular dip in its star's light each time it crosses in front of it in 2019. Its orbit is closer to its star than the habitable zone computed for it.
See L 98-59 b in 3D · The picture is an artist's impression.
L 98-59 c
L 98-59 c is an exoplanet 1.329 times Earth's width, 35 light-years away, orbiting closer to its star than the habitable zone we compute for it.
- Width
- 1.329 × Earth's measured
- Mass
- 2 times Earth's measured
- One year
- 3.69068 days measured
- Distance from its star
- 0.0309 au from the Archive
- Temperature of a bare ball there
- 481 K computed, not measured
- Starlight, against Earth's
- 12.8 × computed
It was found as a small, regular dip in its star's light each time it crosses in front of it in 2019. Its orbit is closer to its star than the habitable zone computed for it.
See L 98-59 c in 3D · The picture is an artist's impression.
L 98-59 d
L 98-59 d is an exoplanet 1.627 times Earth's width, 35 light-years away, orbiting closer to its star than the habitable zone we compute for it.
- Width
- 1.627 × Earth's measured
- Mass
- 1.64 times Earth's measured
- One year
- 7.45073 days measured
- Distance from its star
- 0.0494 au from the Archive
- Temperature of a bare ball there
- 381 K computed, not measured
- Starlight, against Earth's
- 5 × computed
It was found as a small, regular dip in its star's light each time it crosses in front of it in 2019. Its orbit is closer to its star than the habitable zone computed for it.
See L 98-59 d in 3D · The picture is an artist's impression.
L 98-59 e
L 98-59 e is an exoplanet about 1.49 times Earth's width (a size estimated from its mass), 35 light-years away, orbiting closer to its star than the habitable zone we compute for it.
- Width
- 1.49 × Earth's estimated
- Mass
- at least 2.82 times Earth's measured
- One year
- 12.8278 days measured
- Distance from its star
- 0.0712 au from the Archive
- Temperature of a bare ball there
- 317 K computed, not measured
- Starlight, against Earth's
- 2.41 × computed
It was found by the back-and-forth wobble its pull puts into its star's motion, seen as a shift in the colour of the star's light in 2021. Its orbit is closer to its star than the habitable zone computed for it.
See L 98-59 e in 3D · The picture is an artist's impression.
L 98-59 f
L 98-59 f is an exoplanet about 1.48 times Earth's width (a size estimated from its mass), 35 light-years away, orbiting at the edge of its star's computed habitable zone.
- Width
- 1.48 × Earth's estimated
- Mass
- at least 2.8 times Earth's measured
- One year
- 23.064 days measured
- Distance from its star
- 0.1052 au from the Archive
- Temperature of a bare ball there
- 261 K computed, not measured
- Starlight, against Earth's
- 1.1 × computed
It was found by the back-and-forth wobble its pull puts into its star's motion, seen as a shift in the colour of the star's light in 2025. Its orbit lies at the edge of the conservative habitable zone computed for its star.
See L 98-59 f in 3D · The picture is an artist's impression.
The star
- Surface temperature
- 3,415 K
- Width
- 0.316 × the Sun's
- Mass
- 0.2923 × the Sun's
- Spectral type
- M3 V
- Distance
- 35 light-years
- Habitable zone, computed
- 0.1145 to 0.2234 au from the star