HD 221416

Planetary system · 311.6 light-years away · also HD 221416, HIP 116158

HD 221416 is 312 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this K0 IV/V star; the first was found in 2019 by transit (Transiting Exoplanet Survey Satellite (TESS)).

Fly there in 3D

Worth knowing

HD 221416 b goes round its star every 14.3 days, 6 times as often as Mercury goes round the Sun.

The star

Spectral typeK0 IV/V
Surface temperature5,080 K
Mass1.212 solar masses
Radius2.943 solar radii
Luminosity5.15 times the Sun
Apparent magnitude8.15
Ageabout 4.9 billion years
Distance from the Sun311.6 light-years (95.5 parsecs)
Position (J2000)RA 353.0332°, Dec -21.8012°
ConstellationAquarius

Planets (1)

PlanetYearOrbitRadiusMassFound
HD 221416 b14.3 days0.123 AU9.17 R⊕60.5 M⊕Transit, 2019

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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