HD 23079

Planetary system · 109.1 light-years away · also HD 23079, HIP 17096

HD 23079 is 109 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this F9.5 V star; the first was found in 2001 by radial velocity (Anglo-Australian Telescope).

Fly there in 3D

Worth knowing

HD 23079 c goes round its star every 5.75 days, 15 times as often as Mercury goes round the Sun.

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 typeF9.5 V
Surface temperature5,994 K
Mass1.16 solar masses
Radius1.08 solar radii
Luminosity1.35 times the Sun
Apparent magnitude7.12
Ageabout 2.6 billion years
Distance from the Sun109.1 light-years (33.5 parsecs)
Position (J2000)RA 54.9282°, Dec -52.9162°
ConstellationReticulum

Planets (2)

PlanetYearOrbitRadiusMassFound
HD 23079 c5.75 days0.0660 AU from Kepler’s law2.8 R⊕ estimated8.26 M⊕ minimumRadial Velocity, 2025
HD 23079 b735.7 days1.600 AU13.2 R⊕ estimated845.42 M⊕ minimumRadial Velocity, 2001

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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