A red dwarf star in the constellation Ophiuchus that, at a distance of 5.96 light years, is the fifth nearest star to Earth after the sun and the three stars in the Alpha Centauri system. Barnard's star has the largest proper motion yet observed for a star, 10.3 arcseconds per year.
A dim, main-sequence red dwarf in the constellation Ophiuchus that is the second nearest star to Earth after the Alpha-Centauri system. Although it is only 5.98 light-years from our solar system, it is too faint to be seen with the unaided eye. Barnard's star has a greater proper motion (movement with respect to the background stars that is caused by an object's own motion rather than by how it is viewed from Earth) than any other star. Barnard's star is named for its identifier, American astronomer Edward Emerson Barnard (1857–1923).
Origin of barnard-s-star
- After Edward Emerson Barnard (1857–1923), American astronomer who discovered it
From American Heritage Dictionary of the English Language, 5th Edition
- Named for American astronomer E. E. Barnard, who measured its proper motion in 1916.