HD 22946

Planetary system · 204.8 light-years away · also HD 22946, HIP 17047

HD 22946 is 205 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this F7/F8V star; the first was found in 2022 by transit (Transiting Exoplanet Survey Satellite (TESS)).

Fly there in 3D

Worth knowing

TOI-411 b goes round its star every 4.04 days, 22 times as often as Mercury goes round the Sun.

The star

Spectral typeF7/F8V
Surface temperature6,169 K
Mass1.098 solar masses
Radius1.117 solar radii
Luminosity1.619 times the Sun
Apparent magnitude8.27
Ageabout 2.5 billion years
Distance from the Sun204.8 light-years (62.8 parsecs)
Position (J2000)RA 54.8195°, Dec -42.7630°
ConstellationEridanus

Planets (3)

PlanetYearOrbitRadiusMassFound
TOI-411 b4.04 days0.0573 AU1.362 R⊕13.71 M⊕Transit, 2022
TOI-411 c9.57 days0.102 AU2.328 R⊕9.72 M⊕Transit, 2022
HD 22946 d47.4 days0.296 AU2.607 R⊕26.57 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

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