The Haute-Provence Observatory ( OHP , French : Observatoire de Haute-Provence ) is an astronomical observatory in the southeast of France, about 90 km east of Avignon and 100 km north of Marseille . It was established in 1937 as a national facility for French astronomers . Astronomical observations began in 1943 using the 1.20 m telescope , and the first research papers based on observations made at the observatory were published in 1944. Foreign observers first used the observatory in 1949, when Geoffrey and Margaret Burbidge visited.
14-398: OHP may refer to: Haute-Provence Observatory (French: Observatoire de Haute-Provence ), an astronomical observatory in the southeast of France Occupational health psychology , an interdisciplinary area of psychology that is concerned with the health and safety of workers Oklahoma Highway Patrol , a major state law enforcement agency of
28-484: A plateau near the village of Saint-Michel-l'Observatoire in the Alpes-de-Haute-Provence département . The site was chosen for an observatory because of its generally very favourable observing conditions. On average, 60% of nights are suitable for astronomical observations, with the best seasons being summer and autumn. About 170 nights per year on average are completely cloudless . The seeing
42-452: A weight training exercise with many variations Overhead projector , a device that uses light to project an enlarged image on a screen Oliver Hazard Perry-class Frigate , a class of guided missile frigates that were designed by US in mid-70s. Overhead Pole , an above ground pole used to support span wires for a tram network. Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with
56-617: Is often used by visiting undergraduate astronomy students. Other telescopes at OHP are operated by other organizations, including a 1 m telescope belonging to Geneva Observatory , a 0.5 m telescope operated by the French Space Agency for satellite tracking, and the Berlin Exoplanet Search Telescope, a 0.2 m telescope used to search for exoplanets by observing transits across solar-type stars. While primarily an astronomical research facility,
70-590: Is predominantly used for spectroscopic studies, using the high resolution spectrograph Aurélie . The 1.20 m telescope was the first to be installed at the site, and has been in use since 1943. It was originally installed at the Observatoire de Paris in 1872. It is now equipped with a direct charge-coupled device (CCD) camera at the f/6 Newton focus and is mainly used for studies of variability of X-ray sources, imaging of galaxies and H II regions and astrometry of faint solar system objects. The 0.80 m telescope
84-607: Is usually around 2" but can reach 1" or lower on occasion. Seeing degrades severely, sometimes to over 10", when the cold Mistral wind blows from the northwest. This happens on about 45 days per year on average, mostly during winter. Good weather conditions often follow a Mistral . On average, atmospheric absorption at OHP is roughly twice that seen at the European Southern Observatory (ESO) at La Silla, Chile . The main-belt asteroid 7755 Haute-Provence , discovered by Belgian astronomer Eric Elst in 1989,
98-624: The SOPHIE échelle spectrograph . Michel Mayor and Didier Queloz discovered the planet orbiting the star 51 Pegasi from observations made using ELODIE on the 1.93 m telescope. They won half of the Nobel Prize in Physics 2019 for this discovery. The 1.52 m is almost identical to the 1.52 m telescope at the European Southern Observatory in Chile , and has been in use at OHP since 1967. It
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126-670: The inner regions of the asteroid belt , roughly 6 kilometers in diameter, was named in his honour. Elst is credited by the Minor Planet Center with the discovery of 3866 numbered minor planets made between 1986 and 2009. Notable discoveries include 4486 Mithra , a near-Earth and Apollo asteroid , 7968 Elst-Pizarro , which is classified as both asteroid and comet , and more than 25 Jupiter trojans . His discoveries also include: Minor planet articles also exist for 12696 Camus , 8116 Jeanperrin , 22740 Rayleigh , 6267 Rozhen and 9951 Tyrannosaurus , among others. Elst
140-432: The observatory also hosts two geophysics research stations, one studying the mesosphere and thermosphere , and one using lasers to probe the troposphere and stratosphere , studying aerosol and ozone content, using lidar techniques. The Minor Planet Center credits the discovery of following minor planets directly to the observatory: Eric Elst Eric Walter Elst (30 November 1936 – 2 January 2022)
154-552: The title OHP . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=OHP&oldid=1255308832 " Category : Disambiguation pages Hidden categories: Articles containing French-language text Short description is different from Wikidata All article disambiguation pages All disambiguation pages Haute-Provence Observatory The observatory lies at an altitude of about 650 m, on
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#1732801532864168-656: Was a Belgian astronomer at the Royal Observatory of Belgium in Uccle and a prolific discoverer of asteroids . The Minor Planet Center ranks him among the top 10 discoverers of minor planets with thousands of discoveries made at ESO 's La Silla Observatory in northern Chile and at the Rozhen Observatory in Bulgaria during 1986–2009. The minor planet 3936 Elst , a stony Vestian asteroid from
182-413: Was first used during site testing at nearby Forcalquier in 1932 before the construction of the observatory, where it was later moved in 1945. The telescope is equipped with CCD cameras allowing high quality observations to be made using it, but unlike the other telescopes on site which have computer-controlled pointing systems, the 0.80 m telescope must still be pointed manually, using setting circles . It
196-413: Was named for the region where the discovering observatory is located. The four main telescopes at OHP are reflecting telescopes with primary mirrors of diameters 1.93 m, 1.52 m, 1.20 m and 0.80 m. The 1.93 m telescope was built by Grubb-Parsons and installed at the site in 1958. One of the instruments available on the 1.93 m telescope was the high resolution ELODIE spectrograph , replaced in 2006 by
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