Pluto

So in these fast times, the old thruts cange equally fast, the news is that Pluto is declassified an so it’s not a planet.

From Prague the new definition of a planet is the following

A planet is an space object
(a) is in orbit around the Sun,
(b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and
(c) has cleared the neighbourhood around its orbit

and so the little stone that make a turn around the sun every 250 years will lose it’s privileges. After 70 years that we have always belived that it was a planet, we have to make a little change in our common perception. Astronomers… why worry about Pluto? When the common sense is so strong rooted in society why altering it?

zerocold

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