Don. Edwards wrote:
Ok, let me rephrase that. Earth like meaning a terrestrial about the size of Earth, not necessarily exactly Earth like. The term Earth like is getting used to much as far as I am concerned. I think it may be time to start bringing in terms like those used here. http://www.onewest.net/~dollan/ARCpclindex.html
Oh, that is somewhat out of date. The Onewest site has long since been dropped, but for whatever reason, I cannot get the company to remove my old site. The most recent version of my PCL is here: http://arcbuilder.home.bresnan.net/PCLMaster.html
although it needs a LOT of work.
Don. Edwards wrote:While we really have no idea what the conditions in the early Centaurus system were like, and whether it is a totally proven fact that all of Earths water came from comets, as it is chemically different in everything I have seen and read, if the early conditions on any of the planets was at all like it was in our own system, then we may find something similar to Earth. But personally I doubt we will find another Earth right next door. We simply could not get that lucky. Most likely we are going to find a more like Mars analog there, either hot and dry or cold and dry. Or a few Venusian worlds.
See here for some of the most recent information regarding Alpha Centauri: http://www.solstation.com/stars/alp-cent3.htm
Right now, I would say the odds are fifty-fifty, based on what we know thus far about planetary exploration, for there to be terrestrial worlds of any size present. But I'm hopeful, being something of an Alpha Centauri-phile!
Don. Edwards wrote:I personally think James Cameron didn't do enough research. He could have found many star systems that could of housed his system. Good old HD 28185 would have been a great candidate, just a bit far away at 120LY away. I think he was worried by all the recent talk about faster than light travel and it may or may not be possible at least through standard space. I am sure there are other factors in there as well.
I agree wholeheartedly. heck, there are other systems far closer than that, even, which would have worked very well. 18 Scorpii, 37 Geminorum, Eta Cassiopeiae A, maybe (just maybe) even Tau Ceti.
By the way, what ever happened to your HD 28185 add-on? Now that I have a rockin' computer and can actually use those wonderful add-ons of yours, I can't find it anywhere.
...John (gone a long while but trying to make a comeback)...