... Tonight's Sky . ... The Magazine . ... Observing . ... Magazine . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... A timeline of Mount Wilson Observatory . ... Mount Wilson Observatory, located near Los Angeles, California, will be celebrating its 100th year in 2004. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

. Longitude = 03h 58'10s E; Latitude = 57d 02'11'' N; Altitude 260 m . Фото Жени Горбовского и Бориса Сафонова

... Home Gallery Club Events Stereoviews of Telescopes . ... Lecture Series 2014-2015 . ... AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . ... Clear Sky Chart . ... This MonthтАЩs Sky тАУ April 2015 . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

Общая Астрономическая Конференция . ... Правила форума . ... Сообщения за день . ... Добро пожаловать на Общая Астрономическая Конференция. ... Форумы общей направленности . Любые вопросы от новичков (просматривают: 17) . ... Общий форум любителей астрономии (просматривают: 7) . ... Новости магазина Starshop.ru . ... Менее астрономические товары (просматривают: 1) . ... Форум исключительно для сообщений об испытаниях астрономической техники. ... Общая Астрономическая Конференция статистика . ...

... Seidewand created the event FREE WEEKLY TELESCOPE VIEWING AT STRASENBURGH PLANETARIUM: 4/2 cancelled for clouds, snow, . ... Free! ... Call Jim at 703-9876 for more info. 1 week ago . ... Seidewand created the event FREE TELESCOPE VIEWING AT STRASENBURGH PLANETARIUM . ... Seidewand created the event FREE TELESCOPE VIEWING AT STRASENBURGH PLANETARIUM: 3/26 outlook is hopeful . ... Seidewand created the event FREE TELESCOPE VIEWING AT STRASENBURGH PLANETARIUM: 3/19 outlook is excellent . ...

... The collecting area is increased by nesting concentric mirror pairs, all having the same focal length. ... Figure shows the largest optical element being ground at HDOS. ... X-ray testing demonstrated that the CXO mirrors are indeed the largest high-resolution X-ray optics ever made; the nominal effective area (based on the ground calibrations) is shown as a function of energy in the left panel of Figure , along with those of their Einstein and ROSAT predecessors. ...

SAO is Russia's main centre for ground-based space research. ... The basic instruments of the Observatory are the optical telescope BTA (Big Alt-azimuth Telescope) with a main mirror diameter of 6 m and the radio telescope RATAN-600 with the antenna diameter 600 m. Study of the Universe as a whole, analysis of non-stationary energy release in galactic and extragalactic objects of various types, investigation of evolution and chemical composition of our Galaxy and the nature of solar activity. ...

RECREATIONAL TELESCOPES . SPOTTING SCOPES . ... TELESCOPE ACCESSORIES . ... HOME . ... ABOUT LOMO . PRODUCTS . ... TELESCOPES . ... Home Products Telescopes . ... Over the past 2 years LOMO in association with American engineers has developed a new line of recreational telescopes, and spotting scopes, ranging from 30 mm to 254 mm in diameter. ... Recreational Telescopes : . Spotting Scopes . ... Telescope Accessories . ... LOMO America, Inc. ... 847) 215-8800, Fax: (847) 215-9073 . ...

. General Information . Media Files . Participants . Timetable . Local Information . Photos . Back to the album list . Previous Click the image to view it in fullsize. Previous . The BTA (Bolshoi Teleskop Alt-azimutalnyi, Eng:Large Altazimuth Telescope) is a large 6 m optical telescope at the Special Astrophysical Observatory. The BTA-6 was the largest telescope in the world between its first light in 1975 and 1993.

... They cover a period of 4 days in which the Supernova continues to rise in brightness (what astronomers call magntiude). ... First Image Taken on March 11 at 8:22 UT. Second Image Taken on March 12 at 8:52 UT. ... The supernova is the same brightness as in the previous image taken 2 hours ago . ... This image, taken 24 hours after the previous image, shows the supernova to be another 0.21mag (or about 25%) brighter. ... Hopefully the images do show that the brightness of the Supernova is changing. ...

The astronomic instruments on the Earth and in the space. Galilei's telescope . Newton's telescope . The refractor ( 19th century) . ... A mirror telescope . ... The modern telescopes . The giant radio-telescope . Radio-telescope . The Space observatories . ... X-ray observatories. ... Gamma observatories . ... Comptons observatory . The space expeditions along the solar system. The Moon investigation. ... Mars and its satellites investigations. Mars-3" . ...