TOI-1450 A

Planetary system · 73.2 light-years away

TOI-1450 A is 73.2 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this M3.0 V star; the first was found in 2024 by transit (Transiting Exoplanet Survey Satellite (TESS)).

Fly there in 3D

Worth knowing

TOI-1450 A b goes round its star every 2.04 days, 43 times as often as Mercury goes round the Sun.

TOI-1450 A is one of 2 stars in its system: the other is drawn where the Washington Double Star Catalog measures it on the sky.

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

Spectral typeM3.0 V
Surface temperature3,437 K
Mass0.48 solar masses
Radius0.483 solar radii
Luminosity0.02723 times the Sun
Apparent magnitude12.28
Distance from the Sun73.2 light-years (22.4 parsecs)
Position (J2000)RA 286.8541°, Dec 59.0866°
ConstellationDraco

The other star

TOI-1450 B has no spectral type listed of magnitude 16.53, moving through space with it. In 2021 it was 3.2″ from TOI-1450 A, at position angle 325° (Washington Double Star Catalog, 19074+5905 KPP3335 AB): 71.8 AU on the sky at this distance. The true distance can only be larger. Its colour is estimated from its brightness.

Planets (2)

PlanetYearOrbitRadiusMassFound
TOI-1450 A b2.04 days0.0247 AU from Kepler’s law1.13 R⊕1.258 M⊕Transit, 2024
TOI-1450 A c5.07 days0.0452 AU from Kepler’s law1.13 R⊕ estimated1.527 M⊕ minimumTransit, 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.

Sources

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