Get premium, high resolution news photos at Getty Images The astrolabe uses double reverse reflections, with a mercury bath as the bottom mirror. The telescope has a 152-cm mirror and a focal distance of 3161 mm. 4 Observatoire de la C^ote d’Azur, C.E.R.G.A., avenue Copernic, F-06130 Grasse, France Received September 22; accepted March 18, 1999 Abstract. A regular observational programme with a photoelectric astrolabe have been performed at ``Observatoire du Calern" (Observatoire de la Côte d'Azur, OCA, phi = +43() o44′55.011″; lambda = -0() h27() m42.44() s, Calern, Caussols, France) for the last twenty years. Technical card Imaging telescope or lens:Samyang 14mm f/2.8 ED AS IF. These three entities have a different past and history : We experienced this during a few nights during the Spring of 1997 when we (and several other people) were taking pictures of the Haly-Bopp comet. An optical interferometer uses a pair of telescopes to measure the diameter of stars. Une belle sortie en famille à petit tarif, sur réservation obligatoire ! The astrolabs are house in unassuming little buildings with metal sides. VIII. guillau012 110 0 24. Français. Astrometry.net job: 1906121 Resolution: 4240x2832. During the observation, real-time corrections for atmospheric turbulence are made in thousands of a second. Comments. Projected rotational velocities (vsini) have been measured for 216 B0-B9stars in the rich, dense h and χ Persei double cluster and comparedwith the distribution of rotational velocities for a sample of fieldstars having comparable ages (t~12-15 Myr) and masses (M~4-15Msolar). A regular observational programme with a pho-toelectric astrolabe have been performed at \Observatoire du Calern" (Observatoire de la C^ote d’Azur, OCA, ˚ =+43o44055:01100; = −0h27m42:44s,Calern, It has been almost fully automatized between 1984 and 1987. The late-type stellar component We present results of an investigation of the X-ray properties, agedistribution, and kinematical characteristics of a high-galacticlatitude sample of late-type field stars selected from the ROSAT All-SkySurvey (RASS). Des visites guidées accessibles à tous sur ces sites uniques qui abritent de grands instruments d'observation, et qui racontent l'histoire de l'astronomie et de l'Univers. Copyright 1995-2019, Russ Collins - All Rights Reserved. The Observatoire du CERGA is located on the southern edge of the Plaine de Calern. Observatoire de la Côte d'Azur (www.oca.eu). Bauduen | CERGA | Champtercier | Haute-Provence |, The CERGA site can be visited at any time, to wander amidst the white domes and enjoy the great views and the nature. Donieft gët et Prototype vun Eenzelteleskopen deenen hir Kombinatioun fir e giganteschen Teleskop-Projet (Optical Very Large Array, OVLA) ënnersicht goufen. Observatoire de la Côte d'Azur. The Calern Plateau and its surrounding display several geophysical and geological structures of interest,. CERGA has two laser units mounted at opposite ends of the same building . In laser telemetry, a stream of laser pulses from Earth are bounced off reflectors on artificial satellites or the moon, and back to the Earth. The Côte d’Azur Observatory (Observatoire de la Côte d’Azur or OCA) has a remarkable architectural and scientific heritage, which is open to the public. installed at the Calern observatory (France) and performs continuous night-time monitoring of turbulence parameters. These groups are most probably relatedto the dynamical perturbation by transient spiral waves (as recentlymodelled by De Simone et al. Imaging camera:sony A7s unmodded a7s. Den Observatoire vu Calern ass en Observatoire a Frankräich um Plateau Calern op enger Héicht vun 1270 m, e puer Kilometer ewech vum Plateau Caussols, nërdlech vun der Stad Grasse. Le site d’observation du plateau de Calern a été inauguré en 1974 sous la dénomination "Centre d’Étude et de Recherches en Géodynamique et Astronomie" (CERGA) au terme d’une campagne de prospection pour l’implantation d’un nouvel observatoire astrométrique. Measurements are made using photographic images (from ultraviolet to near infrared) and CCD mosaics. We present relative astrometric measurements of visual binaries, made in 2015–2016 with the speckle camera pupil interferometry speckle camera and coronagraph (PISCO) at the 1‐m Epsilon telescope of the C2PU facility (Observatoire de la Côte d'Azur, Calern site). Den Observatoire huet bis 1988 zum Centre d'Etudes et de Recherches Géodynamiques et Astronomiques, kuerz CERGA gehéiert. The Calern observing site of OCA (Observatoire de la Côte d’Azur, Nice - Provence-Alpes-Côte d’Azur) is located at Calern (1260m) within 1h car distance from the international airport of Nice. Basic astrometry details. https://lagrange.oca.eu/images/LAGRANGE/cats/carrousel/calern-b17f2.png Den Observatoire huet eng Schmidtkamera mat 90 cm Ëffnungs- an 1,52 m Spigelduerchmiesser. au terme d'une campagne de prospection lancée sous l'impulsion d'astronomes parisiens et portant sur huit sites, le plateau de calern est retenu en pour l'implantation d'un nouvel observatoire astrométrique conçu dès le départ comme un laboratoire destiné à la mise … E weideren Interferometer ass de Soirdete[3] dat duerch zwéi 1-Meter-Teleskope gebilt gëtt. au terme d'une campagne de prospection lancée sous l'impulsion d'astronomes parisiens et portant sur huit sites, le plateau de calern est retenu en pour l'implantation d'un nouvel observatoire astrométrique conçu dès le départ comme un laboratoire destiné à la mise … Observatoire de la cote d'azur Calern. Technical card Imaging telescope or lens:Samyang 14mm f/2.8 ED AS IF. Hotels near Observatoire de la Cote d’Azur Calern, Saint-Vallier-de-Thiey on Tripadvisor: Find 6,361 traveller reviews, 498 candid photos, and prices for 852 hotels near Observatoire de la Cote d’Azur Calern in Saint-Vallier-de-Thiey, France. The GI2T (the two "jars" behind the working quarters in our photo) has a pair of 1.52-m telescopes mounted on rails oriented north-south to give them a separation of 13 to 65 metres. clock. Observatoiren: Bordeaux - Calern - Côte d'Azur - Haute-Provence - Juvisy-sur-Orge - Lyon - Les Makes - Marseille - Meudon - Nançay - Nice - Paräis - Pic du Midi de Bigorre - Des Pises - Sorbonne - Stroossbuerg - Midi-Pyrénées - Toulouse - Triel-sur-Seine, Centres de recherche, Laboratoiren an Instituter: Centre de recherche fir Geodynamik an Astrometrie - CLIMSO - Astrophysesche Centre de recherche vu Lyon - Astrophysescht Institut vu Paräis - Astrophysesche Laboratoire vu Grenoble - Centre de données astronomiques de Strasbourg - Versailles SQY, Aner Installatiounen: Interferometer um Plateau de Bure -Teleskop Bernard Lyot - Sonnenobservatiounstuerm vu Meudon. Bei der Reorganisatioun an Opléisung vum CERGA gouf den Observatoire de Calern en Deel vum neigegrënnten Observatoire vun der Côte d'Azur. Observatoire de la cote d'azur Calern. More than a year ago. \cite{Simone2004}) rather than to clusterremnants. OBSERVATOIRE DE LA CÔTE D'AZUR. Alain Klotz nous présente TAROT et son rôle dans la mission SVOM. The observing site of Côte d'Azur Observatory (Observatoire de la Côte d'Azur or OCA) Côte d'Azur Observatory is a center for research in Earth and Universe Sciences. Les mesures présentent un caractère de variabilité dont une oscillation du rayon de période 11,8 ans et d'amplitude 0,2′' qui semble anticorrélée avec le cycle des taches. See 8 photos and 2 tips from 18 visitors to Observatoire De Calern. In this photo, the Soirdete is in the foreground, with the moon-laser and satellite-laser behind to the left. Ce site comprend plusieurs lieux d’observation que nous visiterons les uns après les autres. (The official CERGA web is at "www.obs-nice.fr".). I, the copyright holder of this work, hereby publish it under the following licenses: Observatoire de la Côte d'Azur, plateau de Calern. The planispheric astrolabe was used by the Greeks in the 1st century BC, and was the most important instrument used by astronomers and navigators from medieval times through the 16th century. Il dépend de l’Observatoire de Nice (OCA) que nous avions visité l’année dernière. FRANCE ALPES MARITIMES OBSERVATOIRE DU PLATEAU DE CALERN FRANCE ALPES MARITIMES OBSERVATOIRE DU PLATEAU DE CALERN. Isochrones inthe Hertzsprung-Russell diagram reveal a very wide range of ages forstars belonging to these groups. Les résultats présentés sont déduits du programme d'observations visuelles mené à l'observatoire de Calern de 1975 à 1998. These three entities have a different past and history : : +33 (0)4 92 00 30 11 The Plateau de Calern in Caussols was selected in … Since 1988 the photoelectric astrolabe was used without any modification. Plateaux de Calern, Caussols et Cavillore. Lecture Notes … Figure 1: The GDIMM tower just after its installation on the Plateau de Calern in September 2015 de Calern (France), in connexion with the laser telemetry MeO station[6]. Département C.E.R.G.A Observatoire de la Côte d’Azur Grasse France; About this chapter. pin. 2.2K likes. OBSERVATOIRE DE LA COTE D'AZUR. Observatoire de la Côte d'Azur, plateau de Calern. The GI2T observes at visible wavelengths, and studies the gaseous envelopes around hot stars and very-close-together double stars. About the Plateau de Calern observation site. Les résultats présentés sont déduits du programme d'observations visuelles mené à l'observatoire de Calern de 1975 à 1998. Infrared Lunar Laser Ranging at Calern: Impact on Lunar Dynamics ... Géoazur, Observatoire de la Côte d’Azur, Université de la Côte d’Azur, Nice - France 2. The "petit" telescopes are housed in a plain little building perched in the center of the long north-south rails. Alain Klotz nous présente TAROT et son rôle dans la mission SVOM. Imaging camera:sony A7s unmodded a7s. Français. CATS. Our second photo here is a front view of the GI2T with the Schmidt in the background. - La Faye, beyond Colle de Rougiès - Plateau de Cavillore, beyond La Faye. If the content is enjoyable or useful to you, I would really appreciate your support. From that, information such as the movement of tectonic plates can be determined. In: Rozelot J.P. (eds) The Sun’s Surface and Subsurface. Hotels near Observatoire de la Cote d’Azur Calern, Saint-Vallier-de-Thiey on Tripadvisor: Find 849 traveler reviews, 498 candid photos, and prices for 1,238 hotels near Observatoire de la Cote d’Azur Calern in Saint-Vallier-de-Thiey, France. Den Observatoire vu Calern ass en Observatoire a Frankräich um Plateau Calern op enger Héicht vun 1270 m, e puer Kilometer ewech vum Plateau Caussols, nërdlech vun der Stad Grasse. Fine de la 1960-aj jaroj, estis kreita la Laboratoire Universitaire d'Astrophysique de Nice (Universitata Laboratorio de Astrofiziko de Nico), kiu laboras ĉefe pri la atmosfera optiko. Français : L'Observatoire de la Côte d'Azur, sur le Plateau de Calern, enneigé au mois de janvier. The other instruments composing CATS are the Pro ler of Moon Limb[7, 8, 9], an CERGA (Centre d'Etudes et de Recherches Géodynamiques et Astronomiques) does specialized research in measuring movements of the Earth and development of astronomical instruments. Il dépend de l’Observatoire de Nice (OCA) que nous avions visité l’année dernière. Since 1988 the photoelectric astrolabe was used without any modification. Observatoire de la Cote d’Azur Calern is located in Saint-Vallier-de-Thiey. Immerse yourself into world-class art, exciting history, and mind-bending science. Komence de la 1970-aj jaroj , la Observatorio de Parizo konstruis observan stacion sur la altebenaĵo de Calern . Check out the best museums in Saint-Vallier-de-Thiey to visit in 2020. Identification of a complete sample of northern ROSAT All-Sky Survey X-ray sources. Observatoire du plateau de calern 2130, route de l'observatoire 06460 Caussols Description. Since 1987, the main Calern astrolabe as 11 prisms to measure angles from 30° to 70°. Information panels posted around the site have pictures and explanations of the local fauna and flora. PLATEAU DE CALERN 2130, route de l’Observatoire Caussols 06460 Saint-Vallier-de-Thiey Tél. We also have a photo of the actual laser unit (31 k) inside. The southern edge of the plateau de Cavillore overlooks Gourdon to the south, and is a favorite launching site for hang-gliding. When the two images of the celestial object (such as a star) cross in the center of the objective, the object is at the precise angle of the reflector prism. OBSERVATOIRE DE LA CÔTE D'AZUR; Le site d’observation du plateau de Calern a été inauguré en 1974 sous la dénomination "Centre d’Étude et de Recherches en Géodynamique et Astronomie" (CERGA) au terme d’une campagne de prospection pour l’implantation d’un nouvel observatoire astrométrique. Ce site comprend plusieurs lieux d’observation que nous visiterons les uns après les autres. Comments. There are also very interesting and very informative guided tours of the CERGA installations, during July and August, given by the scientists who work there. The PICARD mission has a ground program consisting mostly in four instruments based at the Calern Observatory (Observatoire de la Cote d'Azur). It's 450 employees are located in 4 sites (Mont-Gros historical site, Valrose campus of UNS (University of Nice) à Nice, Sophia Antipolis and the observing site of « plateau de Calern »). Oct 31, 2020 - Looking to get inspired on your trip to Saint-Vallier-de-Thiey? guillau012 113 0 24. SKA à la une de Reflets de la Physique, novembre 2020 Le Square Kilometre Array fait la une du dernier numéro de Reflets de la Physique et fait également l’objet d’un article de 4 pages, rédigé par Chiara Ferrari pour la revue : « SKA : un radiotélescope géant pour étudier l’aube et l’évolution du cosmos ». All information gathered first-hand, since 1995, Sites /  Observatories /  CERGA Observatory, The world's oldest, largest (and best) website about Provence, Gallery of 8 photos for CERGA Observatory. The "observatoire de la Côte d'Azur" is made of : - the Nice Observatory on the hill named"le Mont-Gros" in Nice founded in 1881 - the astronomers of theCERGA (Centre de Recherches en Géodésie Spatiale) formerly in Grasse - the Calern Observatory. Lunar Laser Ranging at the Observatoire de la Côte d'Azur DSC 0719 (10782739813).jpg 2,848 × 4,288; 1,009 KB Lunar Laser Ranging at the Observatoire de la Côte d'Azur DSC 0720 (10782737123).jpg 2,848 × … The "petit" I2T is used to determine the apparent dimension and structure of stars, and ultimately to photograph them. Découverte du Moyen et du Haut Pays. calern-b17f2.png. Date: 6 January 2008: Source: Own work: Author: Patrick Rouzet: Licensing . But far from looking to the past, OCA remains an internationally recognized center for research in Earth Sciences and Astronomy. "An exceptional place on earth" Foursquare uses cookies to provide you with an optimal experience, to personalize ads that you may see, and to help advertisers measure the results of their ad campaigns. Inauguré en 1974, le site fut d’abord conçu comme un laboratoire destiné à la mise au point et à l’utilisation d’instruments nouveaux, dont un … The other instruments composing CATS are the Pro ler of Moon Limb[7, 8, 9], an Ënner dem Antoine Labeyrie goufen eng Rei Interferometeren entwéckelt, dorënner den I2T[1], GI2T[2], dat lescht bestoung aus zwéi Spigelteleskope mat engem Duerchmiesser vun 1,5 Meter, déi iwwer Schinnen op Basislängten tëscht 13 a 65 Meter opgefouert konnte ginn. Astrometry.net job: 1906121 Resolution: 4240x2832. A regular observational programme with a pho-toelectric astrolabe have been performed at \Observatoire du Calern" (Observatoire de la C^ote d’Azur, OCA, ˚ =+43o44055:01100; = −0h27m42:44s,Calern, The "observatoire de la Côte d'Azur" is made of : - the Nice Observatory on the hill named"le Mont-Gros" in Nice founded in 1881 - the astronomers of theCERGA (Centre de Recherches en Géodésie Spatiale) formerly in Grasse - the Calern Observatory. See 8 photos and 2 tips from 18 visitors to Observatoire De Calern. de l’Observatoire, 06460 Caussols, France Introduction: Since 2015, in addition to the traditional green (532nm), infrared (1064nm) has been the preferred wavelength for lunar laser ranging at the Calern lunar laser ranging (LLR) site in France. After 25 years online, I've decided to remove all Ads from my one-man web Provence Beyond. PLATEAU DE CALERN / CAUSSOLS / OBSERVATOIRE DE CAUSSOLS / Observatoire de Caussols – Site de Calern. If you visit the site any night that isn't overcast (most of the time), you'll see the erie sight of laser pulses streaking up through the sky towards invisible satellites as they pass over. Discover the photography 142204337 by oliver heinz – Explore millions of royalty-free pictures from outstanding photographers with EyeEm Dezember 2017 um 11:53 Auer fir d'lescht geännert. The Côte d’Azur Observatory (Observatoire de la Côte d’Azur or OCA) has a remarkable architectural and scientific heritage, which is open to the public. From its long expertise in Atmospheric Optics, the Observatoire de la Côte d'Azur and the J.L. Faucherre, M., Bonneau, D., Koechlin, L., Vakili, F.: Mourard, D.; Tallon-Bosc, I.; Blazit, A.; Bonneau, D.; Merlin, G.; Morand, F.; Vakili, F.; Labeyrie, A.: Astronomesch Observatoiren, Instituter an Installatiounen a Frankräich, Centre de recherche fir Geodynamik an Astrometrie, Astrophysesche Centre de recherche vu Lyon, Centre de données astronomiques de Strasbourg, The GI2T interferometer on Plateau de Calern, https://lb.wikipedia.org/w/index.php?title=Observatoire_vu_Calern&oldid=2075255, Creative Commons Attribution/Share-Alike Lizenz. Le site d’observation du plateau de Calern date de 1974 ; il est au dessus de Grasse dans les Alpes Maritimes. Observations taken together over the past twenty years by the CERGA observatory and the observatory at McDonald, Texas have been used to test certain theories, such as Einstein's theory of relativity. Les mesures présentent un caractère de variabilité dont une oscillation du rayon de période 11,8 ans et d'amplitude 0,2′' qui semble anticorrélée avec le cycle des taches. Measuring the precise position of a satellite, who's position is already known, gives a precise measurement of a position on the earth. The light from two telescopes are converged with optical recombination, and the "interference zones" (I need some help here) are analyzed. Results of its studies are being used in two ambitious projects: • The OVLA (Optical Very Large Array) project (of A. Labeyrie) intends to distinguish the details of the surface of stars early in the next century. Due to the better The Calern observing site of OCA (Observatoire de la Côte d’Azur, Nice - Provence-Alpes-Côte d’Azur) is located at Calern (1260m) within 1h car distance from the international airport of Nice. One of three large Schmidt telescopes in the northern hemisphere, this is used to detect normal astronomical objects, catalogue objects inside and outside our "Milkyway" galaxy, precision measurement of weak objects and study the galactic structure. Other active studies include the variation of the angular diameter of pulsating stars (cepheid type stars), the study of the gas kinematics around hot stars, and the measurement of limb-darkening of stellar photospheres. - Sommet de Calern, less than an hour's hike up the edge of the plateau to the west (1458 m). • VLT, the European Very Large Telescope project. "An exceptional place on earth" Foursquare uses cookies to provide you with an optimal experience, to personalize ads that you may see, and to help advertisers measure the results of their ad campaigns. L’observatoire est installé sur la plateau de Calern, dans un espace semi désertique de 20 km 2, au nord du plateau de Caussols. Le vendredi 12 septembre, l’Observatoire de la Côte d’Azur a fêté les 40 ans d’Observations astronomiques et géophysiques sur le plateau de Calern à Caussols (06). CERGA (Centre d'Etudes et de Recherches Géodynamiques et Astronomiques) does specialized research in measuring movements of the Earth and development of astronomical instruments. In this communication we present long-term and seasonnal statistics obtained at Calern, and combine GDIMM data to provide quantities such as the equivalent turbulence altitude and the e ective wind speed. The "moon" laser (in this photo) has a 1.5-m mirror, and bounces laser pulses off reflectors placed on the moon by American and Russian space missions. Le site d’observation du plateau de Calern date de 1974 ; il est au dessus de Grasse dans les Alpes Maritimes. OBSERVATOIRE DE LA COTE D'AZUR. A regular observational programme with a photoelectric astrolabe have been performed at ``Observatoire du Calern" (Observatoire de la Côte d'Azur, OCA, phi = +43() o44′55.011″; lambda = -0() h27() m42.44() s, Calern, Caussols, France) for the last twenty years. Saturday, May 11, 2019 at 4:15 PM – 7:15 PM UTC+02. The "satellite" laser in the rectangular housing has a 1-m mirror. In the 1970s, 1980s and 1990s, the Plateau de Calern housed instruments that were forerunners in their field, including laser rang finding (photo) and interferometry. The Soirdete interferometer observes cool stars at infra-red wavelengths, and has a fixed east-west baseline, giving it a changing sky-plane projection due to the earth's rotation. Cite this chapter as: Delmas C. (2003) Measurements of the Sun’s Radius at Calern Observatory. Introduction: Since 2015, in addition to the traditional green (532nm), infrared (1064nm) has been the preferred wavelength for lunar laser ranging at the Calern lunar laser ranging (LLR) site in France. But far from looking to the past, OCA remains an internationally recognized center for research in Earth Sciences and Astronomy. 4 Observatoire de la C^ote d’Azur, C.E.R.G.A., avenue Copernic, F-06130 Grasse, France Received September 22; accepted March 18, 1999 Abstract. We present relative astrometric measurements of visual binaries, made in 2015–2016 with the speckle camera pupil interferometry speckle camera and coronagraph (PISCO) at the 1‐m Epsilon telescope of the C2PU facility (Observatoire de la Côte d'Azur, Calern site). Dës Säit gouf de(n) 21. Observatoire de la Côte d’Azur – Observatoire astronomique – CERGA Avec beaucoup d’imagination, on pourrait bien se croire sur le tournage d’un film de science-fiction, voir sur Tatooine dans la bordure extérieure. In a marvellous hill-country setting up above Grasse, its observation instruments include an interferometer unique throughout the world. Basic astrometry details. maison des associations, 06130 Grasse, France. The Observatoire du CERGA is located on the southern edge of the Plaine de Calern. B Star Rotational Velocities in h and χ Persei: A Probe of Initial Conditions during the Star Formation Epoch? Au gré de mes balades photographiques, je vous propose de découvrir les plateaux des Préalpes de Grasse et leurs proches environs. Show Map. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Figure 1: The GDIMM tower just after its installation on the Plateau de Calern in September 2015 de Calern (France), in connexion with the laser telemetry MeO station[6]. Due to the better atmospheric transmission of IR with respect to Green, nearly 3 times the number of normal points have been obtained in IR than in Green [1]. Its white dome is visible from the valley below. IMCCE, Observatoire de Paris, Paris – France Introduction!!!! Observatories > Observatoire de la Côte d'Azur. Author. Den Observatoire huet bis 1988 zum Centre d'Etudes et de Recherches Géodynamiques et Astronomiques , … Cerga's I2T interferometer uses two 26-cm telescopes separated by 140 m on a north-south baseline. Author. Lunar Laser Ranging at the Observatoire de la Côte d'Azur DSC 0719 (10782739813).jpg 2,848 × 4,288; 1,009 KB Lunar Laser Ranging at the Observatoire de la Côte d'Azur DSC 0720 (10782737123).jpg 2,848 × … Hosted by Découverte du Moyen et du Haut Pays. L’observatoire est installé sur la plateau de Calern, dans un espace semi désertique de 20 km 2, au nord du plateau de Caussols.Inauguré en 1974, le site fut d’abord conçu comme un laboratoire destiné à la mise au point et à l’utilisation d’instruments nouveaux, dont un … It has been almost fully automatized between 1984 and 1987. 1 INTRODUCTION 7 juil. Observatoire de la Cote d’Azur Calern (Saint-Vallier-de-Thiey, France): Tours & Tickets 2015 - Caussols - Observatoire de la Côte d'Azur - Plateau de Calern Architecte: Antti Lovag Projet / Construction: 1974 - 1979 The Schmidt-telescope building is located at the edge of the plain, to the left of the road as you drive up. Weider sinn am Observatoire zwéi Laser fir Distanzmiessung vum Äerdmound oder zu Satellitten opgebaut. METEOSPACE is a new partnership project between the Paris Observatory (OP), the Observatoire de la Côte d'Azur (OCA), the French Air Force and a service company (LUNA technology) for the development and operation of a set of small telescopes Hα / Ca II K / Ca II H / G band to be installed at on the Calern plateau (OCA). The CATS station is equipped with a set of complementary instruments for monitoring atmospheric turbulence parameters. The precise distance between Earth and satellite is calculated by measuring the round-trip time of each pulse. The Schmidt telescope for imaging wide fields of view with limited aberrations was also intensely utilized until the early 2000s. Découvrez en famille les sites d'observation astronomique exceptionnels de l'Observatoire de la Côte d'Azur à Nice et Calern. Put Observatoire de la Cote d’Azur Calern into our Saint-Vallier-de-Thiey trip itinerary maker website to see other points of interest to visit during your vacation in Saint-Vallier-de-Thiey. A solar astrolabe can be used to measure the position of stars, determine the precise orbit of the earth around the sun, or measure the "diameter" of the sun. Book effortlessly online with Tripadvisor! : +33 (0)4 93 40 54 54 UMR ARTÉMIS Boulevard de l’Observatoire CS 3429 - F06304 Nice Cedex 4 Tél. Lagrange Laboratory have equipped the Calern Observatory with a station of atmospheric turbulence measurement (CATS: Calern Atmospheric Turbulence Station). The astrolabes at Calern have measured the position of over 120 000 stars, with a precision of 1/100-second of a degree, since 1989. Observatories > Observatoire de la Côte d'Azur.