The new system and its view of the Earth and our SunAstronomers from the Hamburg Observatory were involved in the discovery of two new planets. As part of an international research team led by the University of Göttingen they have discovered two new Earth-like planets near one of our closest neighboring stars. "Teegarden’s star" is only about 12.5 light years away from Earth and is one of the smallest stars existing. It is only about 2700 °C warm and about ten times lighter than the sun. Although it is so close to us, the star was only discovered in 2003. The scientists observed the star for about three years.
 
 Their data clearly show the existence of two planets. The two planets resemble the inner planets of our solar system. They are only slightly heavier than Earth and are located in the so-called habitable zone, where water can be present in liquid form. This is a great success for the Carmenes project, which was specifically designed to search for planets around the lightest stars.

Although planetary systems around similar stars are known, they have always been detected using the transit method – the planets have to pass visibly in front of the star and darken it for a moment, which only happens in a very small fraction of all planetary systems. Such transits have not yet been found for the new planets. But the system is located at a special place in the sky: From Teegarden's star you can see the planets of the solar system passing in front of the sun. An inhabitant of the new planets would therefore have the opportunity to view the Earth using the transit method.

 
Links:Comparison of similar planets with the newly disconvered planet