HAT-P-55

Planetary system · 1667.9 light-years away

HAT-P-55 is 1,668 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 5,804 K star; the first was found in 2015 by transit (HATNet).

Fly there in 3D

Worth knowing

HAT-P-55 b goes round its star every 3.59 days, 25 times as often as Mercury goes round the Sun.

The star

Surface temperature5,804 K
Mass1.028 solar masses
Radius1.105 solar radii
Luminosity1.249 times the Sun
Apparent magnitude13.197
Ageabout 5.3 billion years
Distance from the Sun1667.9 light-years (511.4 parsecs)
Position (J2000)RA 264.2735°, Dec 25.7311°
ConstellationHercules

Planets (1)

PlanetYearOrbitRadiusMassFound
HAT-P-55 b3.59 days0.0463 AU14.841 R⊕189.43 M⊕Transit, 2015

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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