Telescopes
Liste des plus grands télescopes
Un article de Wikipédia, l'encyclopédie libre. En 2008, il existe 23 télescopes terrestres dont le diamètre du miroir est supérieur à 4 mètres [ 1 ] . Ils sont regroupés dans cette Liste des plus grands télescopes optiques terrestres , triés par ordre décroissant de diamètre équivalent du miroir primaire . Situation géographique [ modifier ]
Liste | Explications Légendes du tableau : Remarque : le télescope spatial Hubble "ne fait que" 2.4 mètres de diamètre mais il bénéficie de conditions exeptionnelles car il se trouve dans l'espace. Explications Le choix du site, la latitude et l'altitude
Les plus grands telescopes du monde
Samuel Oschin Schmidt Telescope
Un article de Wikipédia, l'encyclopédie libre. Télescope de Schmidt de 48 pouces, soit 122 cm , d'ouverture et de rapport d'ouverture F/D 2,5, installé à l' observatoire du Mont Palomar . Les débuts [ modifier ] Cet instrument fut mis en projet avec le reste des fonds et la technologie ayant servi pour le vénérable télescope Hale de cinq mètres de diamètre. Le miroir a été coulé par la société Corning et la lame correctrice l'a été à Pasadena.
Un article de Wikipédia, l'encyclopédie libre. Pour les articles homonymes, voir Hubble . Télescope spatial Hubble Le télescope spatial Hubble vu de la Navette spatiale Discovery pendant la seconde mission de maintenance du télescope, STS-82
Télescope spatial Hubble
NewsCenter
NewsCenter is the complete collection of every Hubble Space Telescope news release and its supporting materials, along with tools and resources designed to further your knowledge of astronomy. Find every Hubble news release, from the first images to the latest discoveries. Examine the complete collection of images , videos and the accompanying information.
Herschel
Supernova remnant W44 is the focus of this new image created by combining data from ESA's Herschel and XMM-Newton space observatories. W44 is the vast purple sphere that dominates the left hand side ... The Herschel Space Observatory has discovered a giant, galaxy-packed filament ablaze with billions of new stars.
Spitzer Space Telescope
Astronomers have discovered what appears to be a large asteroid belt around the bright star Vega, as illustrated here at left in brown. The ring of warm, rocky debris was detected using NASA's ... This graph shows the brightness variations of the brown dwarf named 2MASSJ22282889-431026 measured simultaneously by both NASA’s Hubble and Spitzer space telescopes. As the object rotates every 1.4 ...
Spitzer Space Telescope
The Spitzer Space Telescope ( SST ), formerly the Space Infrared Telescope Facility ( SIRTF ) is an infrared space observatory launched in 2003. It is the fourth and final of the NASA Great Observatories program . The planned mission period was to be 2.5 years with a pre-launch expectation that the mission could extend to five or slightly more years until the onboard liquid helium supply was exhausted. This occurred on 15 May 2009. [ 3 ] Without liquid helium to cool the telescope to the very cold temperatures needed to operate, most instruments are no longer usable.
Overview Rutgers University is a partner in the Southern African Large Telescope consortium, SALT , a group of countries and universities that have jointly constructed a 10-meter optical telescope optimized for spectroscopic work that closely resembles the Hobby-Eberly Telescope (HET) at McDonald Observatory in west Texas. Memoranda of Understanding signed by partners in Africa, Europe, Australasia, and North America established the SALT Foundation, which will own and operate SALT. Rutgers astronomers have a 10% share of the telescope and the telescope time. Partners The construction and operation of this world-class astronomical facility has been made possible by the participation of its partner institutions.
Southern African Large Telescope
3/4 view of JWST from the "top" (opposite side from the Sun). The James Webb Space Telescope ( JWST ), previously known as Next Generation Space Telescope ( NGST ), is a planned space telescope optimized for observations in the infrared , and a scientific successor to the Hubble Space Telescope and the Spitzer Space Telescope . The main technical features are a large and very cold 6.5-meter (21 ft) diameter mirror, an observing position far from Earth, orbiting the Earth–Sun L 2 point, and four specialized instruments.