Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/BTA-6> ?p ?o }
- BTA-6 abstract "The BTA-6 (Russian: Большой Телескоп Альт-азимутальный, Bolshoi Teleskop Alt-azimutalnyi, Large Altazimuth Telescope) is a 6-metre (20 ft) aperture optical telescope at the Special Astrophysical Observatory located in the Zelenchuksky District on the north side of the Caucasus Mountains in southern Russia.The BTA-6 achieved first light in late 1975, making it the largest telescope in the world until 1990, when it was surpassed by the partially constructed Keck 1. It pioneered the technique, now standard in large astronomical telescopes, of using an altazimuth mount with a computer-controlled derotator.For a variety of reasons, BTA-6 was never able to operate near its theoretical limits. Early problems with poorly fabricated mirror glass were addressed in 1978, fixing the most serious issue. But due to its location down-wind of numerous large mountain peaks, astronomical seeing is rarely good. The telescope also suffers from serious thermal expansion problems due to the large thermal mass of the mirror, and the dome as a whole which is much larger than necessary. Upgrades have taken place throughout the system's history and are ongoing to this day.".
- BTA-6 thumbnail Big_asimutal_teleskop.jpg?width=300.
- BTA-6 wikiPageExternalLink nph-iarticle_query?1935ApJ....81..156R&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf.
- BTA-6 wikiPageExternalLink descrip.html.
- BTA-6 wikiPageExternalLink Telescopes.
- BTA-6 wikiPageExternalLink index.html.
- BTA-6 wikiPageExternalLink acs.
- BTA-6 wikiPageExternalLink tb.
- BTA-6 wikiPageExternalLink tcs.
- BTA-6 wikiPageExternalLink z_webcam_js.html?t=20.
- BTA-6 wikiPageID "2410005".
- BTA-6 wikiPageLength "18331".
- BTA-6 wikiPageOutDegree "82".
- BTA-6 wikiPageRevisionID "680274938".
- BTA-6 wikiPageWikiLink Adriaan_Blaauw.
- BTA-6 wikiPageWikiLink Altazimuth.
- BTA-6 wikiPageWikiLink Altazimuth_mount.
- BTA-6 wikiPageWikiLink Aluminium.
- BTA-6 wikiPageWikiLink Angle_of_view.
- BTA-6 wikiPageWikiLink Anglo-Australian_Telescope.
- BTA-6 wikiPageWikiLink Angular_resolution.
- BTA-6 wikiPageWikiLink Apparent_magnitude.
- BTA-6 wikiPageWikiLink Arcsecond.
- BTA-6 wikiPageWikiLink Astronomical_seeing.
- BTA-6 wikiPageWikiLink Bagrat_Ioannisiani.
- BTA-6 wikiPageWikiLink C._Donald_Shane_telescope.
- BTA-6 wikiPageWikiLink Cassegrain_reflector.
- BTA-6 wikiPageWikiLink Category:Astronomical_observatories_built_in_the_Soviet_Union.
- BTA-6 wikiPageWikiLink Category:Astronomical_observatories_in_Russia.
- BTA-6 wikiPageWikiLink Category:Telescopes.
- BTA-6 wikiPageWikiLink Caucasus_Mountains.
- BTA-6 wikiPageWikiLink Cerro_Tololo_Inter-American_Observatory.
- BTA-6 wikiPageWikiLink Charge-coupled_device.
- BTA-6 wikiPageWikiLink Charles,_Prince_of_Wales.
- BTA-6 wikiPageWikiLink EMCCD.
- BTA-6 wikiPageWikiLink ESO_3.6_m_Telescope.
- BTA-6 wikiPageWikiLink Equatorial_mount.
- BTA-6 wikiPageWikiLink FWHM.
- BTA-6 wikiPageWikiLink First_light_(astronomy).
- BTA-6 wikiPageWikiLink Full_width_at_half_maximum.
- BTA-6 wikiPageWikiLink George_Ellery_Hale.
- BTA-6 wikiPageWikiLink Glass-ceramic.
- BTA-6 wikiPageWikiLink Hale_Telescope.
- BTA-6 wikiPageWikiLink Hale_telescope.
- BTA-6 wikiPageWikiLink James_Oberg.
- BTA-6 wikiPageWikiLink Keck_Telescope.
- BTA-6 wikiPageWikiLink Kitt_Peak_National_Observatory.
- BTA-6 wikiPageWikiLink La_Silla_Observatory.
- BTA-6 wikiPageWikiLink Lenin_Prize.
- BTA-6 wikiPageWikiLink Lick_Observatory.
- BTA-6 wikiPageWikiLink List_of_largest_optical_reflecting_telescopes.
- BTA-6 wikiPageWikiLink List_of_largest_optical_telescopes_historically.
- BTA-6 wikiPageWikiLink Minute_and_second_of_arc.
- BTA-6 wikiPageWikiLink Mstislav_Keldysh.
- BTA-6 wikiPageWikiLink Nasmyth_telescope.
- BTA-6 wikiPageWikiLink Nicholas_Mayall.
- BTA-6 wikiPageWikiLink Nicholas_U._Mayall_Telescope.
- BTA-6 wikiPageWikiLink Optical_telescope.
- BTA-6 wikiPageWikiLink Palomar_Observatory.
- BTA-6 wikiPageWikiLink Primary_mirror.
- BTA-6 wikiPageWikiLink Prime_focus.
- BTA-6 wikiPageWikiLink Pulkovo_Observatory.
- BTA-6 wikiPageWikiLink RATAN-600.
- BTA-6 wikiPageWikiLink Radio_telescope.
- BTA-6 wikiPageWikiLink Reflecting_telescope.
- BTA-6 wikiPageWikiLink Ritchey-Chrétien_telescope.
- BTA-6 wikiPageWikiLink Ritchey–Chrétien_telescope.
- BTA-6 wikiPageWikiLink Russia.
- BTA-6 wikiPageWikiLink Russian_Academy_of_Sciences.
- BTA-6 wikiPageWikiLink Saint_Petersburg.
- BTA-6 wikiPageWikiLink Siding_Spring_Observatory.
- BTA-6 wikiPageWikiLink Sitall.
- BTA-6 wikiPageWikiLink Soviet_Academy_of_Sciences.
- BTA-6 wikiPageWikiLink Soviet_Union.
- BTA-6 wikiPageWikiLink Special_Astrophysical_Observatory_of_the_Russian_Academy_of_Science.
- BTA-6 wikiPageWikiLink Speckle_imaging.
- BTA-6 wikiPageWikiLink Speckle_interferometry.
- BTA-6 wikiPageWikiLink Spectroscopy.
- BTA-6 wikiPageWikiLink Víctor_M._Blanco_Telescope.
- BTA-6 wikiPageWikiLink W._M._Keck_Observatory.
- BTA-6 wikiPageWikiLink White_elephant.
- BTA-6 wikiPageWikiLink Zelenchukskaya.
- BTA-6 wikiPageWikiLink Zelenchuksky_District.
- BTA-6 wikiPageWikiLink File:4m-Victor_M._Blanco_Telescope_cropped.jpg.
- BTA-6 wikiPageWikiLink File:Anglo-Australian_Telescope_dome.JPG.
- BTA-6 wikiPageWikiLink File:Big_asimutal_teleskop.jpg.
- BTA-6 wikiPageWikiLink File:Kittpeakteliscope.JPG.
- BTA-6 wikiPageWikiLink File:P200_Dome_Open.jpg.
- BTA-6 wikiPageWikiLink File:Shane_dome.JPG.
- BTA-6 wikiPageWikiLink File:Wallpaper_of_3.6-m_Telescope_at_La_Silla.jpg.
- BTA-6 wikiPageWikiLink File:Главная_обсерватория_внутри.jpg.
- BTA-6 wikiPageWikiLinkText "6-meter optical telescope".
- BTA-6 wikiPageWikiLinkText "BTA-6".
- BTA-6 wikiPageWikiLinkText "Bolshoi Teleskop Azimutalnyi (BTA-6)".
- BTA-6 align "right".
- BTA-6 area "26".
- BTA-6 built "First light 1975".
- BTA-6 caption "In front of the main entrance".
- BTA-6 caption "The telescope's 6 metre diameter main mirror is visible in the lower right part of the image.".
- BTA-6 caption "The telescope's building, with a special crane on the right used for maintenance. A Zeiss 1-m telescope is housed in the building on the right. A 60-cm telescope was added in 1994.".