“So you’ve witnessed pluto orbiting the sun?”
“an orbit of the sun is a requirement for a planet (among several other well documented criteria), and pluto’s orbit (that we’ve never fully observed) is 248 years, and pluto was discovered in 1930.”
True, Pluto has not made a complete circuit since it was discovered. However, don’t you suppose those guys are smart enough to observe the arc that planet has made since 1930 and correctly conclude that it is an orbit around the sun? Their ability to put that probe at the right place at the right time validates their calculations for Pluto’s orbit.
Does it really matter what I personally think? I am over 50, pluto has always been a planet to me.
I’ve just been stating what the requirements for being included as a planet, and one of them is an observed orbit around the sun.
Of course it can be calculated and clearly that has been done.