HAT-P-37

Planetary system · 1273.9 light-years away

HAT-P-37 is 1,274 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 5,500 K star; the first was found in 2011 by transit (HATNet).

Fly there in 3D

Worth knowing

HAT-P-37 b goes round its star every 2.80 days, 31 times as often as Mercury goes round the Sun.

The star

Surface temperature5,500 K
Mass0.929 solar masses
Radius0.877 solar radii
Luminosity0.6194 times the Sun
Apparent magnitude13.427
Ageabout 3.6 billion years
Distance from the Sun1273.9 light-years (390.6 parsecs)
Position (J2000)RA 284.2960°, Dec 51.2691°
ConstellationDraco

Planets (1)

PlanetYearOrbitRadiusMassFound
HAT-P-37 b2.80 days0.0379 AU13.204 R⊕371.53 M⊕Transit, 2011

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 5,500 K, 0.62 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.76 to 1.35 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 1,274 years ago, around AD 750.

Nearest systems to it

Also found by HATNet

Sources

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