Algol variables or Algol-type binaries are a class of eclipsing binary stars that are related to the prototype member of this class, β Persei (Beta Persei, Algol) from an evolutionary point of view.
New!!: R Arae and Algol variable ·
Ara is a southern constellation situated between Scorpius and Triangulum Australe.
New!!: R Arae and Ara (constellation) ·
In astronomy, Durchmusterung or Bonner Durchmusterung (BD), is the comprehensive astrometric star catalogue of the whole sky, compiled by the Bonn Observatory (Germany) from 1859 to 1903.
New!!: R Arae and Durchmusterung ·
The Henry Draper Catalogue (HD) is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension (HDE), published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the Henry Draper Extension Charts (HDEC), published from 1937 to 1949 in the form of charts, which gave classifications for 86,933 more stars.
New!!: R Arae and Henry Draper Catalogue ·
Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993.
New!!: R Arae and Hipparcos ·
Mass transfer is the net movement of mass from one location, usually meaning a stream, phase, fraction or component, to another.
New!!: R Arae and Mass transfer ·
The Smithsonian Astrophysical Observatory Star Catalog is an astrometric star catalogue.