To main of Laboratory . The research work and design of optical and optical-electronic devices are carries out by laboratory staff: . ... Lens: . ... In the layout 1 prism systems perform functions of dispersive element, corrector of aberrations, optical reducer. ... Spectral range 200 - 400 nm; . ... Back Forward . ... The main corrector's function are compensation of field aberrations of the main spherical mirror of a telescope (diameter of 600 mm, f'=1200 mm) and increase aperture ratio. ...

The Sun 11 Solar radio bursts study with high spatial and temporal resolution V.A. Alexeev, A.F. Dementyev, B.N. Lipatov, V.F. Melnikov, M.B. Nechaeva, S.D. Snegirev, Yu.V. Tikhomirov Radiophysical Research Institute NIRFI, Nizhny-Novgorod, Russia Theoretical and experimental researches of the energy release fragmentation in solar ares need observations with high spatial 0.01 1 arcsec and temporal 1 ms resolution. ... Several VLBI stations all over the Russia were supplied by this set of equipment. ...

... Let us first find out which way -- rise in spectral resolution with some loss in the S/N ratio or increase in the S/N ratio with a fixed spectral resolution -- is better for the purpose of reduction of equivalent width determination errors. ... N -- number of counts for 1 ? ... line equivalent width, . ... Thus if the spectral resolution is managed to be increased (i.e. to decrease )without loss in the number of counts falling at 1 ?, the equivalent width measurement error is then proportional to . ...

The calculated flux distribution in the 300 to 400 nm region only fits the observed distribution closely for both the Sun and Arcturus when the complete ATLAS9 line list is used. ... Moreover, for Arcturus, even the sub-set of high quality lines can only provide a close fit to the observed high resolution spectrum if we include, ad hoc, an extra amount of continuous absorption opacity. ...

... 13, Moscow 119992, Russian Federation, e-mail: busarev@sai.msu.ru; 2 Research Institute Crimean Astrophysical Observatory, p/o Nauchnyi, Crimea 334413, Ukraine, e-mail: prok@crao.crimea.ua Summary: We propose a combined method of astronomical investigations of small or distant planets incorporating registration of a set of integral spectra of an object and their frequency analysis. ... An application of the method is shown on example of asteroid 21 Lutetia. ... 6] Busarev V. V. (2002), Solar Sys. ...

... Phobos. 3 channels VSK image. The enhanced image after a histogram equalization technique. The distance is 270 km., the resolution is 50/260 m. Phobos . ... The distance is 430 km., the resolution is 80/420 m. Phobos and Mars. ... The distance is 197 km., the resolution is 36 m. Phobos. 3 channels VSK image. The enhanced image after processing with a histogram equalization technique. ... The distance is 188 km., the resolution is 184 m. The closest approach image of Phobos. ...

... Thus all regions of the 0.94-2.50 micron wavelength range accessible from Mauna Kea can be recorded using five fixed angle gratings. ... Grating Angle . ... Efficiencies for the NIFS gratings are shown above. The NIFS spectrograph uses a Bouwers collimator and a refractive camera. ... With these assumptions, the NIFS system efficiency including the Gemini telescope optics but excluding the transmission of the adaptive optics system is about 0.17 e - /photon at J , and 0.22 e - /photon at H and K . ...

... The system is based on serial VTT dc SQUID and input l-metal core solenoid transformer. The achieved current resolution is 300 fA/Hz1=2 . Johnson noise of metal resistor and shot noise of tunnel junction were used for current calibration of SQUID read-out. ... An improving of the current sensitivity of the SQUID read-out down to 30 fA/Hz1=2 can be achieved by increasing of the input transformer self-inductance to 600 lH and decreasing of the SQUID flux noise down to 1 lU0 /Hz1=2 . ...

ASTRONOMICAL YEARBOOK (in Russian) . ... It contains the ephemerides of the Sun, the Moon, major planets, and stars computed with the maximum precision in the accordance with the resolutions approved by the International Astronomical Union (IAU). From AY-2016 the ephemerides EPM2011 developed at IAA RAS was used as a ephemerical basis for the calculation of ephemerides of the Sun, the Moon and major planets with accuracy adequate to DE ephemerides. ... ASTRONOMICAL YEARBOOK . ...

... After hearing and discussing Rocket-Space Corporation Energy General Designer U.P.Semevov's report on the fulfilling the flight program of the orbital complex Mir and proposals on its further exploitation, the Council draws attention to: . ... According to the Russian Government Resolution No. 76 of January 21, 1999 a large amount of work to find and attract Russian and foreign investments to provide the further exploitation of the orbital station Mir was carried out. ...

... The frequency and time resolution connected by the (a) Kotelnikov-Shannon theorem (b) Heisenberg uncertainty principle (c) probability density (d) Euler equation 5. The window (Gabor) transform differs from wavelet-transform because (a) the first one doesn't allow to detect the changes of spectrum in time (b) the first one doesn't allow to reconstruct the function from it's decomposition (c) wavelet-transform is continuous (d) the resolution of wavelet-transform is adapted to the frequency 6. ...

A Sharp View of the Sun . ... Credit Copyright: SST , Royal Swedish Academy of Sciences Explanation: Here is one of the sharper views of the Sun ever taken. This stunning image shows remarkable details of a dark sunspot across the image bottom and numerous boiling granules which appear like kernels of corn across the top. Taken in 2002 , the picture was made using the Swedish Solar Telescope operating on the Canary Island of La Palma . ... NASA Web Site Statements, Warnings, and Disclaimers . ...

... 2005 October 5 . Annular Solar Eclipse at High Resolution . ... The event was not a total eclipse of the Sun for any Earth-bound sky enthusiast but rather, at best, an annular eclipse , where the Moon blocked most of the Sun. ... Those who witnessed the solar eclipse from a narrow path through Portugal , Spain and Africa , however, were lucky enough to see the coveted Ring of Fire , a dark Moon completely surrounded by the brilliant light of the distant Sun. ... About APOD | ...

... Satellite data ] . ... The SCANOR system provides receiving and processing of the Earth-surface pictures made in visible and infra-red bands and transferred by satellites of the NOAA polar orbiter series (in the HRPT mode). ... The SCANOR system includes the desktop receiving device connected to an IBM AT 386 type computer, and the parabolic antenna with the guiding mechanism. The SCANOR system possesses the state-of-art software providing registration and processing of the received data. ...

... Skalnatґ Pleso 43, 1 ­ 2, (2014) e Mini-MegaTORTORA ­ multichannel system for wide-field optical monitoring with high temp oral resolution V. Sasyuk1 , G. Beskin2 , S. Karp ov2 , S. Bondar3 , A. Perkov3 , E. Ivanov3 , E. Katkova3 and A. Shearer4 2 Kazan Federal University, Russia Special Astrophysical Observatory of Russian Academy of Sciences, Russia 3 Insttitute for Precise Instrumentation, Russia 4 National University of Ireland, Galway, Ireland Received: November 4, 2013; Accepted: ?? ...

... I. Сведения из коммутативной алгебры. ... Нетеровы кольца, спектр кольца, носитель модуля. ... Локализация: определение, спектр локализации кольца, точность функтора локализации, локальность свойства точности последовательности, локализация Hom'ов. ... Определение и оценки в коротких ТП. ... ВЕ] D. Buchsbaum, D. Eisenbud. ... J. Algebra 1973, v.25 N.2, p. 259-268. ... Algebra structures for finite free resolutions, and some structure theorems for ideals of codimension 3. ... Finite free resolutions....

To see a Russian version of this page, click here . ... Graduated from Moscow State University (MSU), Faculty of Physics in 1976. Ph.D. degree - 1988, MSU. Main field of scientific activities: photometric investigations of various stars, close binary stellar systems and other astronomical objects, including research with use of fast photoelectric photometry with a high time resolution till 1 millisecond. ... New portable photometer . ... Send your mail to: tem@sai.msu.ru ...

Orbit . ... The orbit of the RadioAstron provides four types of study: . rough images of radio sources with ultra-high angular resolution, using all baselines up to the radius of the apogee, that is much larger than Earth diameter; . ... high quality imaging of radio sources, with moderate resolution, by observing either with small projected base lines Earth-spacecraft, i.e. close to the orbital plane, or near the perigee. ... high accuracy orbit determination. ... Space Radio Telescope . ...

ПУБЛИКАЦИИ - 1995 год . ... Atmospheric and Terrestrial Physics, - 1995, - v. 57, - v. 3, - pp. ... Observations of solar microwave spikes with high spatial resolution at the SSRT: first results. ... 1995. ... Уралов А.М. , Сыч Р.А. , Лубышев Б.И. , Нефедьев В.П., Головко А.А., Коробова З.В., Алиссандракис К.Е., Смарт Р.Н., Цанг Нонги. ... Тезисы докладов XXVI Радиоастрономической конференции (18-22 сент. 1995 г.), Санкт-Петербург, 1995, с.181-182. ... А.М. Уралов , В.М. Мишин. ...

Dr. Phil Plait , aka "The Bad Astronomer" . ... Images . ... Bad Astronomy site . The following are high-resolution images suitable for promos, newspapers, brochures, and the like. Clicking on the thumbnail image will bring up the high resolution image. High resolution (1.3 Mb) . Medium resolution (550 kb) . ... Dr. Plait giving a TV interview at NASA's Goddard Space Flight Center about the transit of Venus in 2004. ... Dr. Plait posing with a model of the Apollo 11 landing site. ...