NGTS-2

Planetary system · 1162.4 light-years away · also TYC 7282-1298-1

NGTS-2 is 1,162 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this F5 V star; the first was found in 2018 by transit (Next-Generation Transit Survey (NGTS)).

Fly there in 3D

Worth knowing

NGTS-2 b goes round its star every 4.51 days, 20 times as often as Mercury goes round the Sun.

The star

Spectral typeF5 V
Surface temperature6,478 K
Mass1.64 solar masses
Radius1.702 solar radii
Luminosity4.273 times the Sun
Apparent magnitude10.789
Ageabout 2.17 billion years
Distance from the Sun1162.4 light-years (356.4 parsecs)
Position (J2000)RA 215.1228°, Dec -31.2021°
ConstellationCentaurus

Planets (1)

PlanetYearOrbitRadiusMassFound
NGTS-2 b4.51 days0.0630 AU17.878 R⊕235.19 M⊕Transit, 2018

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 6,478 K, 4.3 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.88 to 3.27 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 1,162 years ago, around AD 860.

Nearest systems to it

Also found by Next-Generation Transit Survey (NGTS)

Sources

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