2MASS J12073346-3932539

Planetary system · 209.7 light-years away

2MASS J12073346-3932539 is 210 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this M8 star; the first was found in 2004 by imaging (Paranal Observatory).

Fly there in 3D

Worth knowing

2MASS J12073346-3932539 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 typeM8
Surface temperature2,825 K
Mass0.188001 solar masses
Radius0.21887 solar radii
Luminosity0.002749 times the Sun
Apparent magnitude20.15
Ageabout 0.01 billion years
Distance from the Sun209.7 light-years (64.3 parsecs)
Position (J2000)RA 181.8891°, Dec -39.5484°
ConstellationCentaurus

Planets (1)

PlanetYearOrbitRadiusMassFound
2MASS J12073346-3932539 b719.5 years from Kepler’s law46.000 AU15.693 R⊕1652.7 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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