Exoplanet Discoveries, discussion of the latest finds |
Exoplanet Discoveries, discussion of the latest finds |
Guest_PhilCo126_* |
Apr 21 2009, 11:10 AM
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Guests |
Well-known exoplanet researcher Dr Michel Mayor ( discoverer of Peg 51b with Dr Didier Queloz in 1995 ) today announced the discovery of the lightest exoplanet found so far. The planet, “e”, in the famous system Gliese 581, is only about twice the mass of our Earth. The team also refined the orbit of the planet Gliese 581 d, first discovered in 2007, placing it well within the habitable zone, where liquid water oceans could exist:
http://www.eso.org/public/outreach/press-r...9/pr-15-09.html |
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Jun 19 2016, 09:49 AM
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#2
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Member Group: Members Posts: 495 Joined: 12-February 12 Member No.: 6336 |
Some years ago we were given the impression that quite some stellar systems had hot Jupiters. That turned out to be an observational bias since such planets are easy to detect.
But such systems have been found again in quite a number in a study where HARPS were the main instrument though also Hubble and a few others were used. It appear that in the open star cluster M67 about one out of twenty stellar systems have a hot Jupiter. (Sorry for awakening this very old thread. But I were once asked by a moderator not to start to many new topics.) |
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Lo-Fi Version | Time is now: 24th September 2024 - 01:04 AM |
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