TOI-1221

Planetary system · 451.4 light-years away · also TYC 8917-1446-1

TOI-1221 is 451 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 5,592 K star; the first was found in 2023 by transit (Transiting Exoplanet Survey Satellite (TESS)).

Fly there in 3D

Worth knowing

TOI-1221 b takes 91.7 days to go round its star once.

The star

Surface temperature5,592 K
Mass0.93 solar masses
Radius1.031 solar radii
Luminosity0.9619 times the Sun
Apparent magnitude10.494
Ageabout 10 billion years
Distance from the Sun451.4 light-years (138.4 parsecs)
Position (J2000)RA 107.9210°, Dec -65.5089°
ConstellationVolans

Planets (1)

PlanetYearOrbitRadiusMassFound
TOI-1221 b91.7 days0.387 AU2.91 R⊕1112.4 M⊕Transit, 2023

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

Privacy