TOI-1346

Planetary system · 376.6 light-years away · also TYC 4421-1414-1

TOI-1346 is 377 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 5,099 K star; the first was found in 2025 by transit (Transiting Exoplanet Survey Satellite (TESS)).

Fly there in 3D

Worth knowing

TOI-1346 b goes round its star every 42.3 hours, 50 times as often as Mercury goes round the Sun.

Where the archive gives only a period or only an orbit size, the other is worked out from Kepler’s third law with the star’s mass.

The star

Surface temperature5,099 K
Mass0.82 solar masses
Radius0.78 solar radii
Luminosity0.3366 times the Sun
Apparent magnitude11.693
Distance from the Sun376.6 light-years (115.5 parsecs)
Position (J2000)RA 256.6227°, Dec 68.8433°
ConstellationDraco

Planets (2)

PlanetYearOrbitRadiusMassFound
TOI-1346 b42.3 hours0.0267 AU from Kepler’s law2.39 R⊕6.3 M⊕ estimatedTransit, 2025
TOI-1346 c5.50 days0.0571 AU from Kepler’s law2.23 R⊕5.6 M⊕ estimatedTransit, 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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