Astronomers lean towards eight planets
19:39 22 August 2006
NewScientist.com news service
Stephen Battersby, Prague
Astronomers responded with hostility to a plan to admit three new planets, including Pluto's moon Charon, into the solar system.
Finally, astronomers could be homing in on a definition of the word planet. After a day of public bickering in Prague, followed by negotiations behind closed doors, the latest draft resolution was greeted with a broadly friendly reception.
If accepted on Thursday, it would be bad news for Pluto, which would no longer be a full-fledged planet.
The crucial change in "draft c" is that a planet must be the dominant body in its orbital zone, clearing out any little neighbours. Pluto does not qualify because its orbit crosses that of the vastly larger Neptune.
http://www.newscientistspace.com/art...t-planets.html
19:39 22 August 2006
NewScientist.com news service
Stephen Battersby, Prague
Astronomers responded with hostility to a plan to admit three new planets, including Pluto's moon Charon, into the solar system.
Finally, astronomers could be homing in on a definition of the word planet. After a day of public bickering in Prague, followed by negotiations behind closed doors, the latest draft resolution was greeted with a broadly friendly reception.
If accepted on Thursday, it would be bad news for Pluto, which would no longer be a full-fledged planet.
The crucial change in "draft c" is that a planet must be the dominant body in its orbital zone, clearing out any little neighbours. Pluto does not qualify because its orbit crosses that of the vastly larger Neptune.
http://www.newscientistspace.com/art...t-planets.html
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