HIP 65 A

Planetary system · 201.5 light-years away · also HIP 65 A

HIP 65 A is 202 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this K4 V star; the first was found in 2020 by transit (Transiting Exoplanet Survey Satellite (TESS)).

Fly there in 3D

Worth knowing

HIP 65 A b goes round its star every 23.5 hours, 90 times as often as Mercury goes round the Sun.

HIP 65 A is one of 2 stars in its system: the other is drawn where the Washington Double Star Catalog measures it on the sky.

The star

Spectral typeK4 V
Surface temperature4,590 K
Mass0.781 solar masses
Radius0.7242 solar radii
Luminosity0.2099 times the Sun
Apparent magnitude11
Ageabout 4.1 billion years
Distance from the Sun201.5 light-years (61.8 parsecs)
Position (J2000)RA 0.1856°, Dec -54.8308°
ConstellationPhoenix

The other star

HIP 65 B has no spectral type listed of magnitude 16.12, moving through space with it. In 2016 it was 3.8″ from HIP 65 A, at position angle 322° (Washington Double Star Catalog, 00007-5450 KPP2838 AB): 235 AU on the sky at this distance. The true distance can only be larger. Its colour is estimated from its brightness.

Planets (1)

PlanetYearOrbitRadiusMassFound
HIP 65 A b23.5 hours0.0178 AU22.754 R⊕1021.2 M⊕Transit, 2020

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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