Astrophysics (Index)About

Solar Orbiter

(Sun-observing satellite in development)

The Solar Orbiter (SolO) is a Solar research craft under development by the ESA, aiming at a 2020 launch. It is to have an eccentric orbit passing within Mercury's orbit, with an orbital inclination up to 25°. Achieving the orbit will require more than three years, using gravity assists. Instruments:

Further reading: