Skip to comments.Newly Discovered Planet May be First Truly Habitable Exoplanet
Posted on 09/29/2010 9:09:27 PM PDT by Dallas59
To astronomers, a "potentially habitable" planet is one that could sustain life, not necessarily one that humans would consider a nice place to live. Habitability depends on many factors, but liquid water and an atmosphere are among the most important.
"Our findings offer a very compelling case for a potentially habitable planet," said Steven Vogt, professor of astronomy and astrophysics at UC Santa Cruz. "The fact that we were able to detect this planet so quickly and so nearby tells us that planets like this must be really common."
(Excerpt) Read more at news.ucsc.edu ...
Three times the mass of the Earth and they call it habitable?
Note: “Really close” = 120,000,000,000,000 miles. Or about one mile away for every dollar of shortfall in the federal budget going out 50 years.
The planet is tidally locked to the star, meaning that one side is always facing the star and basking in perpetual daylight, while the side facing away from the star is in perpetual darkness. One effect of this is to stabilize the planet’s surface climates, according to Vogt. The most habitable zone on the planet’s surface would be the line between shadow and light (known as the “terminator”), with surface temperatures decreasing toward the dark side and increasing toward the light side.
“Any emerging life forms would have a wide range of stable climates to choose from and to evolve around, depending on their longitude,” Vogt said.
The researchers estimate that the average surface temperature of the planet is between -24 and 10 degrees Fahrenheit (-31 to -12 degrees Celsius). Actual temperatures would range from blazing hot on the side facing the star to freezing cold on the dark side.”
1.2 to 1.4 times the size of the Earth.
Then again it could be deader than a doornail. Why are they wasting their time...when so many Muslims feel bad about themselves?
Is it Koosbane? Are there Merdilidops there?
I thought this planet Gleise was in the new Months or years ago.... This reeks of recycled news.
Can we send Algore?
Potentially habitable, sure. A surface gravity of 1.5G or so would be no impediment to life evolving there. The next generation of space telescopes will be able to determine the atmospheric composition of some exoplanets. If they detect free oxygen, it's pretty much a dead giveaway that there's life.
Not longitude. The lines tracing presumably similar conditions, based on symmetry, would be like lines of latitude with respect to "poles" defined by the line from the star through the center of the planet. The terminator would be the "equator".
Blast from the past! Thank you very much!
Compared to 99.999999% of the universe, that is really close to us.
Winds and weather are apt to be atrocious, but there have been SF novels speculating about life under such circumstances.
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