What is special about the recently discovered extrasolar planet Gliese 581?
What is special about the recently discovered extrasolar planet Gliese 581?
Gliese 581, extrasolar planetary system containing four planets. One of them, Gliese 581d, was the first planet to be found within the habitable zone of an extrasolar planetary system, the orbital region around a star in which an Earth-like planet could possess liquid water on its surface and possibly support life.
Why is Gliese 667cc not habitable?
However, in a 2013 paper, it was revealed that Gliese 667 Cc is subject to tidal heating 300 times that of Earth. This in part is due to its small eccentric orbit around the host star. Because of this, the chances of habitability may be lower than originally estimated.
Is Gliese 832 C habitable?
It is in its star’s habitable zone and a big reason for its high rating is it receives the same amount of solar flux as the earth in the habitable exoplanets catalog. The planet has a mass of 5.2 Earth’s masses and an estimated radius of >1.5 Earth radii.
How far is Gliese 667 Cc from Earth?
22.18 light years
Gliese 667 Cc/Distance to Earth
How was Gliese 667 Cc discovered?
A super Earth known as Gliese 667Cc also came to light in 2011, discovered by astronomers combing through data from the European Southern Observatory’s 3.6-meter telescope in Chile. The planet, only 22 light-years away, has a mass at least 4.5 times that of Earth.
How old is Luyten’s star?
≳8 Gyr
Luyten’s Star
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Metallicity [Fe/H] | −0.16 ± 0.20 dex |
| Rotation | 115.6±19.4 d |
| Age | ≳8 Gyr |
| Other designations |
What galaxy is Gliese 832 in?
It is located relatively close to the Sun, at a distance of 16.2 light years and has a high proper motion of 818.93 milliarcseconds per year. Gliese 832 has just under half the mass and radius of the Sun….Gliese 832.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Database references | |
| SIMBAD | The star |
| planet c | |
| planet b |
What type of planet is Gliese 581c?
Gliese 581c is a super-Earth planet that was discovered in 2007. It resides in the Gliese 581 system, which at 20 light-years from Earth is relatively close to our planet (in celestial terms). While early research suggested that Gliese 581c may have liquid water on its surface because it resides in its star’s…
What is 1gliese 581c?
Gliese 581c is a super-Earth planet that was discovered in 2007. It resides in the Gliese 581 system, which at 20 light-years from Earth is relatively close to our planet (in celestial terms).
How long does it take Gliese 581d to orbit its host star?
The planet furthest out, Gliese 581d, orbits its host star in 66.8 days, while Gliese 581 e completes its orbit in 3.15 days.
Is Gliese 581c tidally locked?
Gliese 581c is most likely tidally locked, meaning one side of the planet is always facing its host star while the other is in constant darkness. It is thought the planet’s surface temperatures are similar to those on Venus.
