Pluto (minor planet designation 134340 Pluto), will pass very close to the Sun in the sky as its orbit carries it around the far side of the solar system from the Earth.
At closest approach, Pluto will appear at a separation of only 0°07′ from the Sun, making it totally unobservable for several weeks while it is lost in the Sun’s glare.
At around the same time, Pluto will also be at its most distant from the Earth – receding to a distance of 34.71 AU – since the two planets will lie on opposite sides of the solar system.
If Pluto could be observed at this time, it would appear at its smallest and faintest on account of its large distance. It would measure 0.0 arcsec in diameter.
Over the following weeks and months, Pluto will re-emerge to the west of the Sun, gradually becoming visible for ever-longer periods in the pre-dawn sky. After around six months, it will reach opposition, when it will be visible for virtually the whole night.