2007-04-05 00:29:36 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
It is small and not in the orbital plane of the rest of the planets. More importantly, with the better telescopes, more Pluto like objects are being discovered and the scientific community didn't want 20 or 30 planets in the next 20 or 30 years.
2007-04-05 00:43:41 · answer #1 · answered by Gene 7 · 1⤊ 0⤋
Mostly because we recently found it to be smaller than the Moon. Back in 1930 when it was discovered we didn't have a good measurements of its size, but people estimated it to be bigger than Mars.
2007-04-05 02:21:55 · answer #2 · answered by campbelp2002 7 · 0⤊ 0⤋
Because it is not the dominate gravitational influence in its orbit.
2007-04-05 03:42:32 · answer #3 · answered by chase 3 · 0⤊ 0⤋
i'd give Gene-man best answer he pretty much covered it "in toto" , yup pretty much hit every point
2007-04-05 00:55:12 · answer #4 · answered by Anonymous · 0⤊ 0⤋