21 relations: Australia, Binary star, Bright Star Catalogue, Constellation, Double star, Durchmusterung, Epoch (astronomy), Eridanus (constellation), Flamsteed designation, Gliese Catalogue of Nearby Stars, Henry Draper Catalogue, Hipparcos, James Dunlop, Johann Elert Bode, Light-year, Nature (journal), Nicolas Louis de Lacaille, Parramatta, River, Smithsonian Astrophysical Observatory Star Catalog, Star catalogue.
Australia (colloquially), officially the Commonwealth of Australia, is an Oceanian country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands.
New!!: P Eridani and Australia ·
A binary star is a star system consisting of two stars orbiting around their common center of mass.
New!!: P Eridani and Binary star ·
The Bright Star Catalogue, also known as the Yale Catalogue of Bright Stars or Yale Bright Star Catalogue, is a star catalogue that lists all stars of stellar magnitude 6.5 or brighter, which is roughly every star visible to the naked eye from Earth.
New!!: P Eridani and Bright Star Catalogue ·
In modern astronomy, a constellation is a specific area of the celestial sphere as defined by the International Astronomical Union (IAU).
New!!: P Eridani and Constellation ·
In observational astronomy, a double star is a pair of stars that appear close to each other in the sky as seen from Earth when viewed through an optical telescope.
New!!: P Eridani and Double star ·
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!!: P Eridani and Durchmusterung ·
In astronomy, an epoch is a moment in time used as a reference point for some time-varying astronomical quantity, such as the celestial coordinates or elliptical orbital elements of a celestial body, because these are subject to perturbations and vary with time.
New!!: P Eridani and Epoch (astronomy) ·
Eridanus is a constellation in the southern hemisphere.
Flamsteed designations for stars are similar to Bayer designations, except that they use numbers instead of Greek and Roman letters.
New!!: P Eridani and Flamsteed designation ·
The Gliese Catalogue of Nearby Stars is a modern star catalogue of stars located within 25 parsecs (81.54 ly) of the Earth.
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!!: P Eridani and Henry Draper Catalogue ·
Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993.
New!!: P Eridani and Hipparcos ·
James Dunlop FRSE FRS (31 October 1793 – 22 September 1848) was a Scottish astronomer, noted for his work in Australia.
New!!: P Eridani and James Dunlop ·
Johann Elert Bode (19 January 1747 – 23 November 1826) was a German astronomer known for his reformulation and popularization of the Titius–Bode law.
New!!: P Eridani and Johann Elert Bode ·
A light-year (abbreviation: ly), sometimes written light year, is a unit of length used informally to express astronomical distances.
New!!: P Eridani and Light-year ·
Nature is a British interdisciplinary scientific journal, first published on 4 November 1869.
New!!: P Eridani and Nature (journal) ·
Abbé Nicolas Louis de La Caille, sometimes spelled Lacaille, (28 December 1713 – 21 March 1762) was a French astronomer and priest.
Parramatta is a suburb and major business district in the metropolitan area of Sydney, Australia.
New!!: P Eridani and Parramatta ·
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river.
New!!: P Eridani and River ·
The Smithsonian Astrophysical Observatory Star Catalog is an astrometric star catalogue.
A star catalogue, or star catalog, is an astronomical catalogue that lists stars.
New!!: P Eridani and Star catalogue ·