TOI-1898

Planetary system · 259.8 light-years away · also HIP 47288

TOI-1898 is 260 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 6,241 K star; the first was found in 2024 by transit (Transiting Exoplanet Survey Satellite (TESS)).

Fly there in 3D

Worth knowing

TOI-1898 b goes round its star every 45.5 days, 1.9 times as often as Mercury goes round the Sun.

The star

Surface temperature6,241 K
Mass1.2484 solar masses
Radius1.6131 solar radii
Luminosity3.558 times the Sun
Apparent magnitude7.87
Ageabout 3.1 billion years
Distance from the Sun259.8 light-years (79.7 parsecs)
Position (J2000)RA 144.5553°, Dec 23.5467°
ConstellationLeo

Planets (1)

PlanetYearOrbitRadiusMassFound
TOI-1898 b45.5 days0.269 AU9.3955 R⊕129 M⊕Transit, 2024

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 6,241 K, 3.6 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.74 to 3.04 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 260 years ago, around 1770.

Nearest systems to it

Also found by Transiting Exoplanet Survey Satellite (TESS)

Sources

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