TOI-1438

Planetary system · 360.4 light-years away · also TYC 4442-562-1

TOI-1438 is 360 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this K0 V star; the first was found in 2025 by transit (Transiting Exoplanet Survey Satellite (TESS)).

Fly there in 3D

Worth knowing

TOI-1438 b goes round its star every 5.14 days, 17 times as often as Mercury goes round the Sun.

The star

Spectral typeK0 V
Surface temperature5,230 K
Mass0.876 solar masses
Radius0.82 solar radii
Luminosity0.45 times the Sun
Apparent magnitude10.957
Ageabout 2.2 billion years
Distance from the Sun360.4 light-years (110.5 parsecs)
Position (J2000)RA 280.9238°, Dec 74.9378°
ConstellationDraco

Planets (2)

PlanetYearOrbitRadiusMassFound
TOI-1438 b5.14 days0.0553 AU3.04 R⊕9.4 M⊕Transit, 2025
TOI-1438 c9.43 days0.0830 AU2.75 R⊕10.6 M⊕Transit, 2025

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.

Sources

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