Kepler-1834

Planetary system · 1632.1 light-years away

Kepler-1834 is 1,632 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 4,821 K star; the first was found in 2021 by transit (Kepler).

Fly there in 3D

Worth knowing

Kepler-1834 c goes round its star every 18.4 hours, 115 times as often as Mercury goes round the Sun.

The star

Surface temperature4,821 K
Mass0.765 solar masses
Radius0.788 solar radii
Luminosity0.2651 times the Sun
Apparent magnitude15.18
Ageabout 12.2 billion years
Distance from the Sun1632.1 light-years (500.4 parsecs)
Position (J2000)RA 294.6647°, Dec 39.7838°
ConstellationCygnus

Planets (2)

PlanetYearOrbitRadiusMassFound
Kepler-1834 c18.4 hours0.0150 AU1.22 R⊕1.98 M⊕ estimatedTransit, 2023
Kepler-1834 b4.60 days0.0491 AU1.4594 R⊕2.73 M⊕ estimatedTransit, 2021

Values are the NASA Exoplanet Archive’s composite parameters. A radius marked estimated comes from a mass–radius relation; a mass marked minimum is M sin i. Planet sizes and colours in the 3D view are renderings: none of these worlds has been photographed as more than a point of light.

The planets, compared

For a star of 4,821 K, 0.27 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.52 to 0.94 AU. None of its known planets orbits inside it. The zone says how much starlight arrives, not whether a planet has water or air. The edges follow Kopparapu et al. (2014), as the 3D view draws them.

The light you see left 1,632 years ago, around AD 390.

Nearest systems to it

Also found by Kepler

Sources

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