What is a great country?

Super-Earth is a type of extrasolar planet (exoplanet) more massive than Earth, but not as large as a gas giant as Jupiter or Saturn. The concept is relatively new. Scientific articles are defined in various ways by a super-with a planet between 1 and 10 Earth's masses or as a planet between 5 and 10 earthly masses. It could take a while for a standard definition to appear if it does at all. Super-grounds are interesting for astronomers because they are a category of planets that do not exist in our own solar system and therefore have an aura of mysteries. This is because our detection technology is not yet sufficiently sensitive to find exoplanets with a matter of similar country or less. The first discovered super Earth was PSR 1257+12 B and PSR 1257+12 ° C, planets with weights approximately 4 times larger than Earth, orbiting Pulsar PSR 1257+12 located 980 light years from the Sun. Although the first time he found out in 1992, until 2003 their existence was confirmed to the satisfaction of the astronomical community. OneLO is the first extrasolar planets that were discovered, but not the first to be confirmed. Around Pulsar, so these planets are constantly bathed in X -rays and are definitely not habitable to life as we know it.

In 2005, the first super-green orbiting the main sequence or a solar star was detected. The planet, Gliese 876 D, was discovered by a team led by Eugenio River and circled Gliese 876, the star of the red dwarf of about 15 light years in the constellation Aquarius. With an estimated matter of about 7.5 times larger than Earth, Gliese 876 D is likely to have a surface gravity of about 3 g , which would be enough to get their own weight twice. This is not the only feature of this super -country that could scare Potential Colonists - it is also so close to its home star that its surface temperature is probably around 710 ° F (377 ° C), similar to Venus.

in April 2007, the discovery of the Super-Earth Gliese 581 C team, headed by Stephane Sain, based in Switzerland, created the main subtitles by being the first planet discovered in the habitable zone of its home star. The habitable zone is an area around the star where temperatures have the potential to be similar to the potential of the Earth and the existence of liquid water is theoretically possible. Gliese 581 C has a weight of about 5 earth materials and Gliese 581 orbits, a red dwarf star located 20.3 light years from the Sun. Gliese 581 C is about 0.073 astronomical units (11 million km) from its home star, on the warm edge of the habitable zone of its star.

Only a few super-homes have been found so far, but many others are expected to be discovered when detection technology improves. As the field progresses, Super-Zema will probably be exoplanets that will catch the headlines most, thanks to their relative similarity, the Earth is compared to gas giant exoplanets.