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Five Exoplanets Orbit Nearby Red Dwarf Star

Dragon
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Five Exoplanets Orbit Nearby Red Dwarf Star Empty Five Exoplanets Orbit Nearby Red Dwarf Star

Post by Dragon Sat Aug 07, 2021 5:37 am

The L 98-59 planetary system contains two non-transiting planets and three transiting terrestrial planets, one of which is a warm rocky world with half the mass of Venus.

L 98-59 is a bright M3V-type dwarf located 34.6 light-years away in the southern constellation of Volans.

Also known as TOI-175 or TIC 307210830, the star is about one-third the mass of the Sun.

According to the new research, L 98-59 hosts five planets: L 98-59b, c, d, e and f.

“The fact that L 98-59 is an M-dwarf sets this system apart among multiplanetary systems,” said lead author Dr. Olivier Demangeon from the Instituto de Astrofísica e Ciências do Espaço at the University of Porto and his colleagues.

“According to the exoplanet archive and the recent literature, only seven multiplanetary systems are currently confirmed — including L-98-59 — around M-dwarfs for which the planetary masses and radius of at least two planets have been measured.


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Dragon
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Post by Dragon Sat Aug 07, 2021 5:39 am

Five Exoplanets Orbit Nearby Red Dwarf Star Image_9935_1-L-98-59b
. Image credit: M. Kornmesser / ESO

This artist’s impression shows the warm terrestrial planet L 98-59b.


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Five Exoplanets Orbit Nearby Red Dwarf Star 334pu7m
Dragon
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Post by Dragon Sat Aug 07, 2021 5:40 am

Five Exoplanets Orbit Nearby Red Dwarf Star Image_9935_2-L-98-59
Image credit: L. Calçada / M. Kornmesser / O. Demangeon / ESO.

This infographic shows a comparison between the L 98-59 exoplanet system (top) with part of the inner Solar System (Mercury, Venus and Earth), highlighting the similarities between the two.


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Five Exoplanets Orbit Nearby Red Dwarf Star 334pu7m
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Post by Dragon Sat Aug 07, 2021 5:41 am



A neighbouring planetary system reveals its secrets

A team of astronomers have used ESO’s Very Large Telescope in Chile to shed new light on planets around a nearby star that resemble those in the inner Solar System.

This video summarises what they found about the planetary system, called L 98-59.


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