swap_horiz BTA-6 Alternatives
Looking for alternatives to BTA-6? Compare the top Observatory options ranked by our AI scoring system.
BTA-6
The BTA-6, or Large Azimuthal Telescope, is a 6-meter optical reflecting telescope located in the Caucasus Mountains of southern Russia. Completed in 1975 and operated by the Special Astrophysical Observatory of the Russian Academy of Sciences, it was the largest single-mirror telescope in the world...
apps Top BTA-6 Alternatives
The top alternative to BTA-6 in 2026 is Royal Greenwich Observatory with a score of 9.18/10, followed by Samarkand Observatory of Ulugh Beg (9.08) and Very Large Telescope (9.02).
Royal Greenwich Observatory
Founded in Greenwich in 1675, the Royal Observatory connected astronomical observation with the practical demands of nav...
Samarkand Observatory of Ulugh Beg
Established in the 1420s at Samarkand, in present-day Uzbekistan, Ulugh Beg's observatory was a major center of astronom...
Very Large Telescope
The Very Large Telescope (VLT) is an enormous ground-based optical and infrared observatory located in Chile’s Atacama D...
Uraniborg
Built between 1576 and 1580 on Hven, then under Danish control and now part of Sweden, Uraniborg was Tycho Brahe's Renai...
Harvard College Observatory
Founded in 1839 in Cambridge, Massachusetts, Harvard College Observatory is one of the United States' older astronomical...
Observatoire de Genève
The Geneva Observatory (Observatoire de Genève) is a Swiss astronomical research facility located in Sauverny, Switzerla...
Magellan Telescopes
The Magellan Telescopes are a pair of twin 6.5-meter optical reflecting telescopes located at the Las Campanas Observato...
Gemini South
Gemini South is an 8.1-meter optical/infrared astronomical observatory located on Cerro Pachón in the Chilean Andes. It...
Paranal Observatory
The Paranal Observatory is a key component of the European Southern Observatory’s Very Large Telescope (VLT). Located in...
Gemini North
Gemini North is an 8.1-meter optical and infrared astronomical telescope situated near the summit of Mauna Kea in Hawaii...
Maragheh Observatory
The Maragheh Observatory was a medieval astronomical facility established in 1259 in the city of Maragheh, located in pr...
Zwicky Transient Facility
The Zwicky Transient Facility (ZTF) is a wide-field astronomical survey instrument operating at Palomar Observatory in s...
Mount Wilson Observatory
The Mount Wilson Observatory, located in California, played a crucial role in astronomical research beginning with its e...
Giant Magellan Telescope
The Giant Magellan Telescope is a next-generation ground-based optical and infrared observatory located in Chile’s Ataca...
National Astronomical Observatory of Japan
The National Astronomical Observatory of Japan (NAOJ) conducts astronomical research utilizing both optical and radio te...
Pan-STARRS
The Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) is a wide-field astronomical imaging facility loca...
Special Astrophysical Observatory
Established in 1966 in Russia's Caucasus Mountains, the Special Astrophysical Observatory is a major astronomical resear...
Pulkovo Observatory
The Pulkovo Observatory is a historic astronomical institution located south of Saint Petersburg, Russia. Founded in 183...
Caucasus Mountain Observatory
The Caucasus Mountain Observatory is an astronomical research facility operated by the Sternberg Astronomical Institute...
Terskol Observatory
Located on Mount Terskol in Russia at 3,100 meters, this high-altitude observatory features a two-meter Zeiss telescope...
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