BD+20 594

Planetary system · 585.3 light-years away

BD+20 594 is 585 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this G star; the first was found in 2016 by transit (K2).

Fly there in 3D

Worth knowing

BD+20 594 b goes round its star every 41.7 days, 2.1 times as often as Mercury goes round the Sun.

The star

Spectral typeG
Surface temperature5,766 K
Mass1.67 solar masses
Radius1.08 solar radii
Luminosity0.88 times the Sun
Apparent magnitude10.849
Ageabout 3.34 billion years
Distance from the Sun585.3 light-years (179.5 parsecs)
Position (J2000)RA 53.6511°, Dec 20.5990°
ConstellationTaurus

Planets (1)

PlanetYearOrbitRadiusMassFound
BD+20 594 b41.7 days0.241 AU2.5781 R⊕22.248 M⊕Transit, 2016

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.

The planets, compared

For a star of 5,766 K, 0.88 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.89 to 1.57 AU. None of its known planets orbits inside it. The zone says how much starlight arrives, not whether a planet has water or air. The edges follow Kopparapu et al. (2014), as the 3D view draws them.

The light you see left 585 years ago, around 1440.

Nearest systems to it

Also found by K2

Sources

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