GQ Lup

Planetary system · 493.1 light-years away

GQ Lup is 493 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this K7e V star; the first was found in 2004 by imaging (Paranal Observatory).

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Worth knowing

GQ Lup b was photographed directly: it is one of the few exoplanets seen as its own point of light rather than inferred from its star.

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 typeK7e V
Surface temperature4,360 K
Mass0.7 solar masses
Radius1.94153 solar radii
Luminosity0.8465 times the Sun
Apparent magnitude11.593
Ageabout 0.001 billion years
Distance from the Sun493.1 light-years (151.2 parsecs)
Position (J2000)RA 237.3004°, Dec -35.6515°
ConstellationLupus

Planets (1)

PlanetYearOrbitRadiusMassFound
GQ Lup b1195.3 years from Kepler’s law100.000 AU33.6 R⊕6356 M⊕Imaging, 2004

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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