Star system, 2,800 light-years
Kepler-90 and its eight planets
KOI-351 b is an exoplanet 1.31 times Earth's width, 2,800 light-years away, orbiting closer to its star than the habitable zone we compute for it.
Kepler-90 is a star of spectral type the table does not record, 2,800 light-years from us, with eight 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
KOI-351 b
KOI-351 b is an exoplanet 1.31 times Earth's width, 2,800 light-years away, orbiting closer to its star than the habitable zone we compute for it.
- Width
- 1.31 × Earth's measured
- Mass
- about 2.27 times Earth's estimated by the Archive from the planet's size, not measured
- One year
- 7.00815 days measured
- Distance from its star
- 0.07616 au computed from the period and the star's mass
- Temperature of a bare ball there
- 1,077 K computed, not measured
- Starlight, against Earth's
- 320 × computed
It was found as a small, regular dip in its star's light each time it crosses in front of it in 2013. Its orbit is closer to its star than the habitable zone computed for it. The Archive's own distance for it is 0.074 au; the three papers behind its period, its star's mass and that distance do not agree with Kepler's third law, so the page uses the one the period and the star's mass give.
See KOI-351 b in 3D · The picture is an artist's impression.
KOI-351 c
KOI-351 c is an exoplanet 1.19 times Earth's width, 2,800 light-years away, orbiting closer to its star than the habitable zone we compute for it.
- Width
- 1.19 × Earth's measured
- Mass
- about 1.81 times Earth's estimated by the Archive from the planet's size, not measured
- One year
- 8.71937 days measured
- Distance from its star
- 0.089 au from the Archive
- Temperature of a bare ball there
- 996 K computed, not measured
- Starlight, against Earth's
- 234 × computed
It was found as a small, regular dip in its star's light each time it crosses in front of it in 2013. Its orbit is closer to its star than the habitable zone computed for it.
See KOI-351 c in 3D · The picture is an artist's impression.
Kepler-90 i
Kepler-90 i is an exoplanet 1.32 times Earth's width, 2,800 light-years away, orbiting closer to its star than the habitable zone we compute for it.
- Width
- 1.32 × Earth's measured
- Mass
- about 2.3 times Earth's estimated by the Archive from the planet's size, not measured
- One year
- 14.4491 days measured
- Distance from its star
- 0.1234 au computed from the period and the star's mass
- Temperature of a bare ball there
- 846 K computed, not measured
- Starlight, against Earth's
- 122 × computed
It was found as a small, regular dip in its star's light each time it crosses in front of it in 2017. Its orbit is closer to its star than the habitable zone computed for it. The Archive's own distance for it is 0.120138 au; the three papers behind its period, its star's mass and that distance do not agree with Kepler's third law, so the page uses the one the period and the star's mass give.
See Kepler-90 i in 3D · The picture is an artist's impression.
KOI-351 d
KOI-351 d is an exoplanet 2.87 times Earth's width, 2,800 light-years away, orbiting closer to its star than the habitable zone we compute for it.
- Width
- 2.87 × Earth's measured
- Mass
- about 8.6 times Earth's estimated by the Archive from the planet's size, not measured
- One year
- 59.7367 days measured
- Distance from its star
- 0.32 au from the Archive
- Temperature of a bare ball there
- 525 K computed, not measured
- Starlight, against Earth's
- 18.1 × computed
It was found as a small, regular dip in its star's light each time it crosses in front of it in 2013. Its orbit is closer to its star than the habitable zone computed for it.
See KOI-351 d in 3D · The picture is an artist's impression.
KOI-351 e
KOI-351 e is an exoplanet 2.66 times Earth's width, 2,800 light-years away, orbiting closer to its star than the habitable zone we compute for it.
- Width
- 2.66 × Earth's measured
- Mass
- about 7.56 times Earth's estimated by the Archive from the planet's size, not measured
- One year
- 91.9391 days measured
- Distance from its star
- 0.42 au from the Archive
- Temperature of a bare ball there
- 459 K computed, not measured
- Starlight, against Earth's
- 10.5 × computed
It was found as a small, regular dip in its star's light each time it crosses in front of it in 2013. Its orbit is closer to its star than the habitable zone computed for it.
See KOI-351 e in 3D · The picture is an artist's impression.
KOI-351 f
KOI-351 f is an exoplanet 2.88 times Earth's width, 2,800 light-years away, orbiting closer to its star than the habitable zone we compute for it.
- Width
- 2.88 × Earth's measured
- Mass
- about 8.65 times Earth's estimated by the Archive from the planet's size, not measured
- One year
- 124.914 days measured
- Distance from its star
- 0.5197 au computed from the period and the star's mass
- Temperature of a bare ball there
- 412 K computed, not measured
- Starlight, against Earth's
- 6.87 × computed
It was found as a small, regular dip in its star's light each time it crosses in front of it in 2013. Its orbit is closer to its star than the habitable zone computed for it. The Archive's own distance for it is 0.48 au; the three papers behind its period, its star's mass and that distance do not agree with Kepler's third law, so the page uses the one the period and the star's mass give.
See KOI-351 f in 3D · The picture is an artist's impression.
KOI-351 g
KOI-351 g is an exoplanet 7.718 times Earth's width, about 0.7 times Jupiter's, 2,800 light-years away, orbiting closer to its star than the habitable zone we compute for it.
- Width
- 7.718 × Earth's measured
- Mass
- 15 times Earth's measured
- One year
- 210.735 days measured
- Distance from its star
- 0.7365 au computed from the period and the star's mass
- Temperature of a bare ball there
- 346 K computed, not measured
- Starlight, against Earth's
- 3.42 × computed
It was found as a small, regular dip in its star's light each time it crosses in front of it in 2013. Its orbit is closer to its star than the habitable zone computed for it. The Archive's own distance for it is 0.71704 au; the three papers behind its period, its star's mass and that distance do not agree with Kepler's third law, so the page uses the one the period and the star's mass give.
See KOI-351 g in 3D · The picture is an artist's impression.
KOI-351 h
KOI-351 h is an exoplanet 11.252 times Earth's width, about 1.0 times Jupiter's, 2,800 light-years away, orbiting closer to its star than the habitable zone we compute for it.
- Width
- 11.252 × Earth's measured
- Mass
- 203 times Earth's measured
- One year
- 331.603 days measured
- Distance from its star
- 0.9964 au computed from the period and the star's mass
- Temperature of a bare ball there
- 298 K computed, not measured
- Starlight, against Earth's
- 1.87 × computed
It was found as a small, regular dip in its star's light each time it crosses in front of it in 2013. Its orbit is closer to its star than the habitable zone computed for it. The Archive's own distance for it is 0.97062 au; the three papers behind its period, its star's mass and that distance do not agree with Kepler's third law, so the page uses the one the period and the star's mass give.
See KOI-351 h in 3D · The picture is an artist's impression.
The star
- Surface temperature
- 6,080 K
- Width
- 1.2 × the Sun's
- Mass
- 1.2 × the Sun's
- Distance
- 2,800 light-years
- Habitable zone, computed
- 1.271 to 2.226 au from the star