WASP-155

Planetary system · 1303.4 light-years away · also TYC 2755-01060-1

WASP-155 is 1,303 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 5,660 K star; the first was found in 2025 by transit (SuperWASP).

Fly there in 3D

Worth knowing

WASP-155 b goes round its star every 3.11 days, 28 times as often as Mercury goes round the Sun.

The star

Surface temperature5,660 K
Mass1.09 solar masses
Radius1.24 solar radii
Luminosity1.385 times the Sun
Apparent magnitude12.365
Ageabout 1.7 billion years
Distance from the Sun1303.4 light-years (399.6 parsecs)
Position (J2000)RA 347.9797°, Dec 33.0476°
ConstellationPegasus

Planets (1)

PlanetYearOrbitRadiusMassFound
WASP-155 b3.11 days0.0430 AU13.451 R⊕276.83 M⊕Transit, 2025

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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