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Earth sized planet found !
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Larry Monske Send message Joined: 17 Sep 05 Posts: 281 Credit: 554,328 RAC: 0 |
Gliese 581 a red star with a planet found with a runaway green house atmosphere. It is 1.4 times the size of the earth. This is one the first extrasolar planets orbiting a red star. This planet lies in a green zone and has temperature ranges at 27 degrees celseus. Neither too hot nor too cool to maintain liquid water thus life could be here. It is 20.4 light years from earth. |
BMgoau Send message Joined: 8 Jan 07 Posts: 29 Credit: 1,562,200 RAC: 0 |
According to wikipedia and its sources the discovery of that super-earth was made on the 4th of April last year. http://en.wikipedia.org/wiki/Gliese_581_c There also this planet in the same system which was found on April 24th 2007 http://en.wikipedia.org/wiki/Gliese_581_d Theres a handy image showing the relative habitability of planets in the system: The two planets mentioned here appear at the bottom of the image, just outside the habitable zone. Habitable for life we know :P |
Taurus Send message Joined: 3 Sep 07 Posts: 324 Credit: 114,815 RAC: 0 |
Sorry, but this news is extremely old. It's so old, in fact, that National Geographic, Discovery, and the Science Channel have all had special shows of one kind or another dedicated to the discovery of the Gilese 581 exoplanets. This planet lies in a green zone and has temperature ranges at 27 degrees celseus. Neither too hot nor too cool to maintain liquid water thus life could be here. Not sure where you're getting that information, but I would guess that temperature estimate is based on nothing more than the direct light from the star it orbits without taking into account the atmosphere. I'm pretty sure that after the hype died down, further research concluded that Gilese 581 c is actually outside the habitable zone for Red Dwarf systems and it is likely that no liquid water exists on the surface. Gilese 581 d is likely an ice ball. There was a LOT of hype when these planets were discovered, but in the end, neither of them are very good candidates for habitability. |
Larry Monske Send message Joined: 17 Sep 05 Posts: 281 Credit: 554,328 RAC: 0 |
Most have been detected mathmatically and certified by astronomical observitories. 51 Peg was the 1st planet found around another star.The hot planet around this star was detected by its wobble or interaction with orbiting planets. This was done with 51 Peg several years ago mathmatically. Now the CCD cameras are cooled in liqiud nitrogen or helium to get temperatures of the detector to minus 371 degrees farenihite. These are picking on the average of 12 extrasolar planets a week. Several multiole planets systems have been found. 55 Cancri now has 8 plabnets detected around the star, 4 are hot jupiters. |
Mr. Majestic Send message Joined: 26 Nov 07 Posts: 4752 Credit: 258,845 RAC: 0 |
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BMgoau Send message Joined: 8 Jan 07 Posts: 29 Credit: 1,562,200 RAC: 0 |
Most have been detected mathmatically and certified by astronomical observitories. 51 Peg was the 1st planet found around another star.The hot planet around this star was detected by its wobble or interaction with orbiting planets. This was done with 51 Peg several years ago mathmatically. Your posts are nonsensical. Where is this information coming from? What are your sources? Please quote them along with your information in posts so that readers can follow. |
Clyde C. Phillips, III Send message Joined: 2 Aug 00 Posts: 1851 Credit: 5,955,047 RAC: 0 |
Gliese had been discussed on these forums several months ago. |
Larry Monske Send message Joined: 17 Sep 05 Posts: 281 Credit: 554,328 RAC: 0 |
Most have been detected mathmatically and certified by astronomical observitories. 51 Peg was the 1st planet found around another star.The hot planet around this star was detected by its wobble or interaction with orbiting planets. This was done with 51 Peg several years ago mathmatically. do a google search extrasolar planets its an extensive list. |
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