IAU Wipes out the planet Pluto! Next: The Entire Solar System
Well, the International Astronomical Union has gone ahead and wiped out the American planet Pluto as we warned earlier, securing the passage of Resolutions 5 and 6 at the 2006 IAU International Congress to unleash their dastardly French Science-Based Document (SBD) press release, all that’s left out there is a cloud of “plutons” and an empty parking lot for the New Horizons spacecraft.
In the effort to get the innocuously named Resolution 5A passed there is some odd language used (French?):
“(2) A dwarf planet is a celestial body that (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, (c) has not cleared the neighbourhood around its orbit,
and (d) is not a satellite.”
Item C was obviously a swipe at Pluto, which crosses inside the orbit of Neptune during it’s trip around the sun.
Here’s where things get weird for me: There are many diverse “mass challenged” (a more PC term than “dwarf planets”, I should think) objects - comets, asteroids, rocks, chunks of ice, etc.- that orbit the Sun and also cross the orbits of just about every one of the “classical” planets, some at significant inclinations to the plane of the ecliptic, some right along the ecliptic. They go about their business in the Solar System as is their right under the Laws.
If every “classical” planet’s orbit is intersected by the orbit of other objects going ’round the Sun, how do they determine that the “neighbourhood” is clear? I didn’t see a formula for determining an acceptable orbital neighborhood; is there some Homeowner’s Association to check out the orbit and make sure there aren’t any Undesirables going in or out of the area? Whoops, here comes a comet, there goes the neighbourhood! Someone call 911!
Based on that bit of logic, one could make a case for getting rid of all the planets altogether, based on unacceptable orbital association, and evidence from the local Neighbourhood Watch busybodies.
Unless someone wants to make the mineral- and chemical-rich Inner Eight area a gated community, that is.
And if they do, I won’t be there. Segregation and apartheid have no place in this Solar System, and I’ll restate my feelings regarding the treatment of all bodies orbiting the Sun:
“Instead of waiting until there are insurmountable problems accommodating them [the mass-challenged trans-Neptunian opjects], let’s offer them a chance to become legitimate and equal objects to those we learned about in Elementary school.
And let’s give them ALL names and official status.
Just as we teach our children about the history of our country and our world but don’t make them learn the name of every citizen in the phonebook, we can teach them about the first “wanderers” humans observed in the heavens, and perhaps write some new chapters about planets called Pluto, Xena, and others. Chapters about equality and perseverance and basic rights of all those orbiting this medium-sized yellow main sequence star.
No matter what star you formed around, what part of an accretion disk you came from, what your albedo is, what your mass is, or what your natural resources are, we all have something of value to contribute to the Solar System.” [You can read the entire text of this item here.]
Perhaps the better answer is simple: In the name of Equal Rights for All Under the Sun, no more “planets”.
Thanks, IAU.
© Copyright by the author 2006, all rights reserved.








