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Revision as of 20:00, 14 January 2002

Found this on the main page here:

Nice artist's conception [here|http://business.fortunecity.com/soros/98/70vir.html]
Unfortunately, all of the "Goldilocks" reports are based on
old data... If you read the 1996 paper by Geoff Marcy you
will find him using a parallax of ".112 (29 light years) &
a spectral type of G4V. This is where the often quoted
surface temperature of 80 degrees Celsius is derived. However,
that star is now known to be much farther away, & a subgiant.
[Hipparchos|http://astro.estec.esa.nl/Hipparcos/HIPcatalogueSearch.html] gives its

parallax as ".05522 (59 light years), which makes the

new planet far too hot to ever have liquid water, unless under
an atmosphere near the critical point of water.


Too bad for science fiction!


This isn't an encyclopedia article...I'm not sure what it is. Will we even want an article titled "70 Virginis"? --LMS