Artist's impression of the GJ 367 system (IMAGE)
Caption
The exoplanet GJ 367b orbits its star in an extremely short time. Only 8 hours, then a year has passed on this planet. We don't know anything like this from our solar system: Mercury is the fastest planet here with an orbital period of 88 days, compared to GJ 367b it is a lame snail. GJ 367b is a rocky planet that is much denser than Earth and similar in structure to Mercury. It probably has a large iron core. This precise characterisation is based on high-precision measurements of radius and mass – not a matter of course for exoplanets.GJ 367b orbits a dwarf star that is about half the size of the Sun. The radiation on the planet is enormous because of the small distance to the star: On the side of the planet facing the star, the temperature is between 1300° and 1500° Celsius. At such temperatures, iron and rocks melt.
Credit
SPP 1992 (Patricia Klein)
Usage Restrictions
can be used with the credit "SPP 1992 (Patricia Klein)"
License
Original content