Barnard's Star b: What We Know About Nearby 'Super-Earth' Planet Candidate

Barnard's Star b: What We Know About Nearby 'Super-Earth' Planet Candidate https://www.eresviral.com/wp-content/uploads/2018/11/Barnard039s-Star-b-What-We-Know-About-Nearby-039Super-Earth039-Planet-Candidate

Barnard's Star b: What We Know About Nearby 'Super-Earth' Planet Candidate









	
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Barnard's Star b: What We Know About Nearby 'Super-Earth' Planet Candidate




                                                                The astronomers detected Barnard's B-star through the "radial velocity" method, noting the subtle changes in starlight caused when the gravitational force of the planet pushed its host star in this way. It was not an easy detection; never before had such a small planet been seen in such a distant orbit using the radial velocity method. The research team analyzed the value of 20 years of observations, made by seven different instruments.

Barnard's Star b is approximately 0.4 astronomical units (AU) from its host star; only 40 percent of the distance between Earth and the Sun, which is 1 AU (93 million miles, or 150 million kilometers). The planet completes one revolution every 233 Earth days.

                            



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