HIP 13044 b

HIP 13044 b is discovered by the La Silla Observatory in Chile exoplanet that orbits the star HIP 2000 Lj Distance 13044. The planet is believed to have originated in another galaxy.

Characteristics

The special feature of HIP 13044 b is that the origin originally lay outside our galaxy. The planet and its star HIP 13044 were part of a dwarf galaxy that has been swallowed before six to nine billion years from our Milky Way. HIP 13044 b has at least 1.25 times the mass of Jupiter and orbits its star in 0.2 AU distance.

The central star is already bloated red giant and was formerly our sun similar. The planet seems to have survived an earlier higher expansion phase of the star. Recent observations show the star in a shrunken phase. So it is expected that a future re- expansion is HIP 13044 b can eventually fall into its star.

Another special feature of this system is the low metallicity of the star compared to the other previously discovered suns with planets. According to the project manager Johny Setiawan is difficult to explain with the widely accepted model of planet formation, as is, ever was able to form a planet around a star, which contains hardly any heavy elements.

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