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Exoplanet · mini-Neptune

K2-179 b

K2-179 b is a mini-Neptune orbiting the star K2-179. Its year lasts 5.17 Earth days. It was discovered in 2018 by the Transit method.

Host starK2-179
Distance622.3 light-years (190.8 pc)
Orbital period5.17 days
Radius2.51 R⊕ · 0.224 R♃
Mass6.86 M⊕ · 0.0216 M♃ (estimated from the radius)
Density2.38 g/cm³
Discovery methodTransit
Discovery year2018
Discovered byK2

In the sky

A telescope is needed to see it: its apparent magnitude is 12.94. Visible from the whole Northern Hemisphere and south to latitude 66° S. North of latitude 66° N it never sets. It stands highest at midnight in November, the best time to observe it.

Light's journey

The light you see tonight set out around the year 1404. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 11 million years.

Open in the simulation

Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.