Corey S Powell
Corey S Powell  路  2 weeks ago

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It's been an exciting couple weeks for the exploration of planets around other stars.

A new report reveals that Barnard's star (closest single star to the Sun) has a whole system of planets.

People have been seeking planets there since the '60s. Now we've found them--four rocky worlds, 1/4 the mass of Earth, in tight orbits around their tiny red star.

https://noirlab.edu/public/news/noirlab2510/ #space #science #nature

This animation shows the orbital dynamics of the Barnard鈥檚 Star planetary system. For a century, astronomers have been studying Barnard鈥檚 Star in the hope of finding planets around it. First discovered by E. E. Barnard at Yerkes Observatory in 1916, it is the nearest single star system to Earth. Now, using in part the Gemini North telescope, one half of the International Gemini Observatory, partly funded by the U.S. National Science Foundation and operated by NSF NOIRLab, astronomers have discovered four sub-Earth exoplanets orbiting the star. One of the planets is the least massive exoplanet ever discovered using the radial velocity technique, indicating a new benchmark for discovering smaller planets around nearby stars.
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