Please save this message for reference. Discuss the Outer Solar System, from the Moons of Jupiter to the outer reaches of the Edgeworth-Kuiper Belt. It is...
jupiter_list@yahoogro...
Aug 1, 2006 4:52 pm
7362
http://sci.esa.int/science-e/www/object/index.cfm?fobjectid=39769 Huygens Scientific Archive Data Set Released European Space Agency 02 Aug 2006 ESA's Huygens...
Ron Baalke
baalke@...
Aug 2, 2006 6:06 pm
7363
Cassini Significant Events for 07/27/06 - 08/02/06 Thursday, July 27 (DOY 208): It was reported in the Cassini Significant Events last week that the ...
Ron Baalke
baalke@...
Aug 4, 2006 11:16 pm
7364
http://www.spaceref.com/news/viewpr.html?pid=20565 End of an era -- and the loss of an important voice for rationality in the form of space exploration....
Cassini Significant Events for 08/03/06 - 08/09/06 The most recent spacecraft telemetry was acquired Wednesday, August 9, from the Goldstone tracking stations....
Ron Baalke
baalke@...
Aug 11, 2006 6:21 pm
7367
http://www.rockymountainnews.com/drmn/local/article/0,1299,DRMN_15_4912714,00.html : "This spring, the IAU formed a new seven-person panel in a last-ditch...
http://www.jpl.nasa.gov/news/features.cfm?feature=1150 Voyager 1: 'The Spacecraft That Could' Hits New Milestone Jet Propulsion Laboratory August 15, 2006 ...
Ron Baalke
baalke@...
Aug 15, 2006 10:08 pm
7369
http://www.washingtonpost.com/wp-dyn/content/article/2006/08/15/AR2006081501124.html This strikes me as rather weird -- are the other known KBOs intermediate...
http://www.iau2006.org/mirror/www.iau.org/iau0601/iau0601_release.html The IAU draft definition of "planet" and "plutons" August 16, 2006 Prague The world's...
Ron Baalke
baalke@...
Aug 16, 2006 4:02 pm
7372
So, let's see: (1) Ceres -- after 206 years as an "asteroid" -- is suddenly reclassified as a planet. (2) Several KBOs considerably larger than Ceres are...
... Is "satellite" well defined anywhere? I'm wondering about the case where two objects, each potentially under the above definition a planet, but also ...
... Yes. "Satellite: Anything orbiting a planet, as long as the mutual centre of gravity does not fall outside the planet. Includes several bodies much larger...
Ron Baalke
baalke@...
Aug 16, 2006 5:45 pm
7375
Personally, I like the definition. Not so sure about Charon though... It is based on the physical properties of the body. Yes, there are some borderline...
... Better still, the proposed definition, being reasonably sensible, could be applied to all other stars (which don't carry historical baggage) with an ad hoc...
... Thanks for the rapid response. That seems like a sensible working definition that covers what we mostly want in a universe just waiting to throw exceptions...
... The biggest problem I see right now is that they are ignoring the Moon, which by any definition, is a planet. Its round and massive enough and its primary...
I wonder if there is intelligent life on Pluto or nearby what these beings would make of this debate?? Also what would they classify the inner planets as? ......
... Isn't the moon's primary orbital centre the great attractor (the huge blob at the centre of our milky way)? But there's a valid point here: I guess there's...
They are distingushing objects that orbit a common center of mass that is not located within either body (Pluto-Charon system) and objects like the moon or Io...
First Steps to Astronomy and Geography (Hatchard & Son: Piccadilly, London, 1828). lists the planets as: "Eleven: Mercury, Venus, the Earth, Mars, Vesta,...
... its ... No, you missed the point. The sun exerts twice as much force on the moon as the earth does. The moon's primary center of orbit is the sun,...
... From: alortie4@... To: jupiter_list@yahoogroups.com Sent: Wednesday, August 16, 2006 10:56 AM Subject: Re: [jupiter_list] Re: IAU "planet" definition ...
http://www.gps.caltech.edu/~mbrown/whatsaplanet/ What makes a planet? Mike Brown The IAU has proposed a definition which would add hundreds of new planets to...
Ron Baalke
baalke@...
Aug 16, 2006 10:25 pm
7389
Hello, If the sun exerts twice as much force on the moon than as the earth does, why does the moon then always has the same side towards earth and not towards...
Arthur Lortie wrote: The biggest problem I see right now is that they are ignoring the Moon, Which by any definition, is a planet. Its round and massive enough...
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