Observations of the apparent distances and positions of 380 double and triple stars, made in the years 1821, 1822, and 1823, and compared with those of other astronomers ; together with an account of such changes as appear to have taken place in them since their first discovery. Also a description of a five-foot equatorial instrument employed in the observations | Collections | The Huntington

Observations of the apparent distances and positions of 380 double and triple stars, made in the years 1821, 1822, and 1823, and compared with those of other astronomers ; together with an account of such changes as appear to have taken place in them since their first discovery. Also a description of a five-foot equatorial instrument employed in the observations | Collections | The Huntington