Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Meridian_circle> ?p ?o }
- Meridian_circle abstract "The meridian circle is an instrument for timing of the passage of stars across the local meridian, an event known as a transit, while at the same time measuring their angular distance from the nadir. These are special purpose telescopes mounted so as to allow pointing only in the meridian, the great circle through the north point of the horizon, the zenith, the south point of the horizon, and the nadir. Meridian telescopes rely on the rotation of the Earth to bring objects into their field of view and are mounted on a fixed, horizontal, east-west axis.The similar transit instrument, transit circle or transit telescope is likewise mounted on a horizontal axis, but the axis need not be fixed in the east-west direction. For instance, a surveyor's theodolite can function as a transit instrument if its telescope is capable of a full revolution about the horizontal axis. Meridian circles are often called by these names, although they are less specific.For many years, transit timings were the most accurate method of measuring the positions of heavenly bodies, and meridian instruments were relied upon to perform this painstaking work. Before spectroscopy, photography, and the perfection of reflecting telescopes, the measuring of positions (and the deriving of orbits and astronomical constants) was the major work of observatories.".
- Meridian_circle thumbnail Groombridge_transit_circle.jpg?width=300.
- Meridian_circle wikiPageExternalLink nph-iarticle_query?bibcode=1869GOAMM..29H...1A.
- Meridian_circle wikiPageExternalLink books?id=8FxIAAAAYAAJ&source=gbs_navlinks_s.
- Meridian_circle wikiPageExternalLink v=onepage&q=%22transit%20instrument%22&f=false.
- Meridian_circle wikiPageExternalLink v=onepage&q=meridian%20circle&f=false.
- Meridian_circle wikiPageExternalLink 1.
- Meridian_circle wikiPageExternalLink camc.html.
- Meridian_circle wikiPageExternalLink ast84.
- Meridian_circle wikiPageExternalLink fastt.html.
- Meridian_circle wikiPageID "3391863".
- Meridian_circle wikiPageLength "28676".
- Meridian_circle wikiPageOutDegree "150".
- Meridian_circle wikiPageRevisionID "681048588".
- Meridian_circle wikiPageWikiLink Air.
- Meridian_circle wikiPageWikiLink Almagest.
- Meridian_circle wikiPageWikiLink Altazimuth_mount.
- Meridian_circle wikiPageWikiLink Altitude_(astronomy).
- Meridian_circle wikiPageWikiLink Ancient_history.
- Meridian_circle wikiPageWikiLink Angle.
- Meridian_circle wikiPageWikiLink Astronomical_constant.
- Meridian_circle wikiPageWikiLink Astronomy.
- Meridian_circle wikiPageWikiLink Atmosphere_of_Earth.
- Meridian_circle wikiPageWikiLink Atmospheric_refraction.
- Meridian_circle wikiPageWikiLink Atomic_clock.
- Meridian_circle wikiPageWikiLink Azimuth.
- Meridian_circle wikiPageWikiLink Bearing_(mechanical).
- Meridian_circle wikiPageWikiLink Bending.
- Meridian_circle wikiPageWikiLink Blackheath,_London.
- Meridian_circle wikiPageWikiLink Brass.
- Meridian_circle wikiPageWikiLink Cambridge.
- Meridian_circle wikiPageWikiLink Carlsberg_Automatic_Meridian_Circle.
- Meridian_circle wikiPageWikiLink Carlsberg_Meridian_Telescope.
- Meridian_circle wikiPageWikiLink Category:Astrometry.
- Meridian_circle wikiPageWikiLink Category:Telescopes.
- Meridian_circle wikiPageWikiLink Celestial_coordinate_system.
- Meridian_circle wikiPageWikiLink Celestial_pole.
- Meridian_circle wikiPageWikiLink Charge-coupled_device.
- Meridian_circle wikiPageWikiLink Chart_recorder.
- Meridian_circle wikiPageWikiLink Circumpolar_star.
- Meridian_circle wikiPageWikiLink Colatitude.
- Meridian_circle wikiPageWikiLink Collimator.
- Meridian_circle wikiPageWikiLink Computer_data_storage.
- Meridian_circle wikiPageWikiLink Counterweight.
- Meridian_circle wikiPageWikiLink Crosshair.
- Meridian_circle wikiPageWikiLink Declination.
- Meridian_circle wikiPageWikiLink Dew_point.
- Meridian_circle wikiPageWikiLink Ecliptic.
- Meridian_circle wikiPageWikiLink Edinburgh.
- Meridian_circle wikiPageWikiLink Edward_Troughton.
- Meridian_circle wikiPageWikiLink Equatorial_coordinate_system.
- Meridian_circle wikiPageWikiLink Eyepiece.
- Meridian_circle wikiPageWikiLink Field_of_view.
- Meridian_circle wikiPageWikiLink Focus_(optics).
- Meridian_circle wikiPageWikiLink Foot_(unit).
- Meridian_circle wikiPageWikiLink Friction_rollers.
- Meridian_circle wikiPageWikiLink Georg_Friedrich_von_Reichenbach.
- Meridian_circle wikiPageWikiLink George_Biddell_Airy.
- Meridian_circle wikiPageWikiLink Graduation_(instrument).
- Meridian_circle wikiPageWikiLink Great_circle.
- Meridian_circle wikiPageWikiLink Greenwich.
- Meridian_circle wikiPageWikiLink Groombridge_Transit_Circle.
- Meridian_circle wikiPageWikiLink Gun_metal.
- Meridian_circle wikiPageWikiLink Gunmetal.
- Meridian_circle wikiPageWikiLink Göttingen.
- Meridian_circle wikiPageWikiLink Harvard_College.
- Meridian_circle wikiPageWikiLink Horizontal_coordinate_system.
- Meridian_circle wikiPageWikiLink Horizontal_plane.
- Meridian_circle wikiPageWikiLink Interferometry.
- Meridian_circle wikiPageWikiLink Jesse_Ramsden.
- Meridian_circle wikiPageWikiLink Johann_Georg_Repsold.
- Meridian_circle wikiPageWikiLink Königsberg.
- Meridian_circle wikiPageWikiLink Latitude.
- Meridian_circle wikiPageWikiLink Lever.
- Meridian_circle wikiPageWikiLink List_of_telescope_types.
- Meridian_circle wikiPageWikiLink Longitude.
- Meridian_circle wikiPageWikiLink Magnitude_(astronomy).
- Meridian_circle wikiPageWikiLink Mercury_(element).
- Meridian_circle wikiPageWikiLink Meridian_(astronomy).
- Meridian_circle wikiPageWikiLink Micrometer.
- Meridian_circle wikiPageWikiLink Microscope.
- Meridian_circle wikiPageWikiLink Minute_and_second_of_arc.
- Meridian_circle wikiPageWikiLink Minute_of_arc.
- Meridian_circle wikiPageWikiLink Nadir.
- Meridian_circle wikiPageWikiLink Newton_(unit).
- Meridian_circle wikiPageWikiLink Objective_(optics).
- Meridian_circle wikiPageWikiLink Observatory.
- Meridian_circle wikiPageWikiLink Ole_Rømer.
- Meridian_circle wikiPageWikiLink Orbit.
- Meridian_circle wikiPageWikiLink Personal_equation.
- Meridian_circle wikiPageWikiLink Photographic_plate.
- Meridian_circle wikiPageWikiLink Photography.
- Meridian_circle wikiPageWikiLink Pistor_and_Martins.
- Meridian_circle wikiPageWikiLink Plane_(geometry).
- Meridian_circle wikiPageWikiLink Pole_star.
- Meridian_circle wikiPageWikiLink Pound_(force).
- Meridian_circle wikiPageWikiLink Pounds_force.
- Meridian_circle wikiPageWikiLink Pressure.
- Meridian_circle wikiPageWikiLink Prism.
- Meridian_circle wikiPageWikiLink Prism_(optics).