SAI 175 anniversary . ... Moscow University . Search for in SAI Moscow University Search for in Russian astronomical resources . ... SAI Astronomical Databases . ... Browse SAI Software archive(ftp.sai.msu.su) . ASTRONET.RU - Russian Astronomical Network (available in translit also) . ... SAI Supernovae Research Group . ... Department of the Galaxy and Variable Stars (in Russian) . Sternberg Astronomical Institute Seminars . ... All-Russian Astronomical Olympiad (in Russian) . ...

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• SAI SN RESEARCH GROUP

... Donate to Support Science Literacy . ... 2016 Annual Awards . The ASP is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach. ... Shop the AstroShop . ... The Astronomical Society of the Pacific (ASP) is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach.. ...

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... If you use adaptsmooth to do your own science, please acknowledge its use in your publications by adding a sentence like тАЬThis work has made use of the adaptive smoothing code adaptsmooth , developed by Stefano Zibetti and available at the URL http://www.arcetri.astro.it/~zibetti/Software/ADAPTSMOOTH.html тАЭ and reference the following papers: Zibetti, S., 2009, arXiv:0911.4956 ; Zibetti S., Charlot S., Rix H., 2009, MNRAS, 400, 1181 . ...

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... Using a simple 2-D Gaussian Point Spread Function (PSF) on a constant (flat) sky background, I derive a theoretical photometric and astrometric performance model for analytical and digital PSF-fitting stellar photometry. ... The photometric performance is maximized when either the effective background area or the effective-background-level measurement error is minimized. ... An important, but frequently ignored, noise source is the uncertainty of the measurement of the effective background level ( )...

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• Cost-Effective System Management
• Adaptive, Lossless Compression of 2-D Astronomical Images
• Modelling Spectro-photometric Characteristics of Eclipsing Binaries

... Bojan Nikolic web pages (r. 329) . ... Using high-resolution three-dimensional realisations of turbulent fields, we investigate the limits on achievable performance of atmospheric phase correction using water-vapour radiometers arising from following effects: the incoherent measurement of power from water by the radiometers (in contrast to coherent detection of the astronomical signal); the different tapers of the response patterns of the astronomical and radiometer receivers; and, the ...

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... Астрономическая неделя с 11 по 17 апреля 2016 года . ... Александр Козловский . ... День открытых дверей на Пущинской РадиоАстрономической Обсерватории 09 апреля 2016 года . ... Полное солнечное затмение 9 марта 2016 года . ... Полное лунное затмение 28 сентября 2015 года . ... Затмение, которое произойдет 28 сентября 2015 года, является повторением через сарос (цикл повторений затмений равный 6585 дней или 18 лет 11 дней) полного лунного затмения от 16 сентября 1997 года с максимальной фазой 1,20.....

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• A Year of Assessing Astronomical Hazards
• Астронет > A Year of Assessing Astronomical Hazards
• Journal "Peremennye Zvezdy"

Next: Iterative Image Restoration Up: Adaptive Regularized Restoration Algorithms Previous: Adaptive Regularized Restoration Algorithms . There have been a variety of techniques applied to the restoration of HST images over the last several years (White 1991, Weir 1991). ... For a recent review and classification of image restoration algorithms, see Katsaggelos (1991). ... In this paper two iterative image restoration techniques are applied to the HST data restoration problem. ...

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• The Damped R-L Iteration
• Following the Road to Effective International Sharing of Astronomical
• Iterative Image Restoration

. Pulkovo Observatory of Russian Academy of Sciences is situated . near Saint-Petersburg. It was founded in 1839. 196140, Saint-Petersburg, Pulkovskoye chaussee 65/1 . English version . Russian version . This page has been accessed times since May 1, 1999.

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... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Australia Telescope Online Archive (ATOA) . ... Parkes | ... Australia Telescope 20GHz Survey . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ...

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• Adaptive Filter (schematic)
• A Chromatic Aberration
• Australia Telescope National Facility

... Increasing the size of the isoplanatic patch with multiconjugate adaptive optics. ... Adaptive optics for astronomy: principles, performance and applications. ... B. L. Ellerbroek. ... Scaling multi-conjugate adaptive optics performance estimates to extremely large telescopes. volume 4007, page in press, 2000. ... Efficient phase estimation for large field of view adaptive optics. ... Principles, limitations and performance of multi-conjugate adaptive optics. volume 4007, page in press, 2000. ...

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• ESO - aoscience03
• ESO - Adaptive Optics
• ESO - Real Time Control for Adaptive Optics Workshop

... 66 45' 11.1" West . Latitude (astronomical) . ... Longitude (astronomical) . ... Declination range . ... 0.4 deg/s, 1440 deg/hour . ... 0.04 deg/s, 144.0 deg/hour . ... Magnetic declination . ... Height of reflector center of curvature above MSL . ... Fixed reflector, movable feeds . Diameter of reflector . ... Area of aperture . ... Radius of curvature . ... 1 One Kelvin/Jansky (K/Jy) corresponds to 2761 m 2 effective aperture. ...

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• National Astronomy and Ionosphere Center (Arecibo Observatory)

... Since variance is the square of standard deviation, the obvious thing to to is to divide the input variance image by the square of the exposure map . Remember that, regardless of the value of readvarianceset , the task makes use of an internal variance image if either writevarianceset =`yes' or smoothstyle =`adaptive'.) ... However, recall that adaptive smoothing makes use of the input variance to calculate the signal-to-noise ratio (SNR) of the input image. ...

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• Effective Area, Filter Transmission, Quantum Efficiency and Grating attenuation

... В четверг, 14 апреля 2016 г., состоится семинар кафедры астрофизики. Повестка дня . ... Начало в 11 час.15 мин. Ауд. ... В четверг, 31 марта 2016 г., состоится семинар кафедры астрофизики . ... В четверг, 24 марта 2016 г. , состоится семинар кафедры. ... В четверг, 17 марта 2016 г. , состоится заседание кафедры. ... ОСП НИИ ПММ Национального исследовательского Томского государственного университета) . ... Copyright 2016 Астрономия в Санкт-Петербургском университете . ...

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• Database of Optical Properties -- Level: subsubpage

... Posts tagged ?Sunyaev-Zel?dovich effect? ... A fast Bayesian approach to discrete object detection in astronomical datasets ? ... ArXiv] A fast Bayesian object detection? ... Comment . ... Entries RSS . Comments RSS . ... Algorithms arXiv Astro Bad AstroStat Bayesian CHASC Cross-Cultural Data Processing Fitting Frequentist Galaxies gamma-ray High-Energy Imaging Jargon Job Languages MC MCMC Meta Methods Misc News Nuggets Objects Optical Physics Quotes Spectral Stars Stat Timing Uncertainty X-ray . ...

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• The AstroStat Slog effective area
• The AstroStat Slog Blog Archive [ArXiv] A fast Bayesian object detection
• how-to manual

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. ...

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• Головна

... Bad Astronomy . ... I think I will break from my usual format of Bad Astronomy/ Good Astronomy by saying that the way we define seasons currently is not strictly bad, but I feel (in my opinion!) that it could be better. The definition of when the seasons begin is at the moment of solstice or equinox; that is, winter (in the north) starts on December 22 nd and summer starts on June 22 nd . ... Now imagine breaking up the Sun's 46 degree up-and-down yearly swing into 1 day intervals. ...

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... The Meade Series 4000 Zoom Eyepiece has changed that impression completely and forever. ... Meade Series 4000 2x Apochromatic Barlow Lens (1.25") . Exclusive Meade 3-element, air-spaced design; thousands now in use worldwide. #140 2x Apochromatic Barlow Lens: The most advanced Barlow lens yet developed for commercial telescopes, the Meade #140 2x Apochromatic Barlow includes a 3-element, air-spaced telenegative lens unmatched in image resolution, contrast, and color correction. ... about meade | ...

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• Meade Variable Projection Camera Adapter (1.25")
• Meade Variable Projection Camera Adapter (1.25") - Photography Accessories -
• Meade Basic Camera Adapter (1.25")

... Dark current e - /s/pix . ... OH continuum photon/s/m 2 /arcsec 2 / m . ... Imager: . ... Adaptive Optics: . ... Object signal e - /pix . Sky thermal signal e - /pix . Sky OH continuum signal e - /pix . Sky OH line signal e - /pix . Telescope thermal signal e - /pix . AOS thermal signal e - /pix . Cryostat signal e - /pix . Dark signal e - /pix . Total signal e - /pix . ... This tool models the performance of the Gemini South Adaptive Optics Imager (GSAOI) . ...

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• Designated Observatory Application
• GSAOI Home Page
• GSAOI Instrument Description Page

. Chairs . Teachers . Postgraduate Students . Undergraduate Students . Courses . Head: A.M.Cherepaschuk . Vice-Head: A.C.Rastorguev . Webmaster: Yuri V. Pakhomov . pakhomov@sai.msu.su

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• Astronomical Circular - Contents
• Rudnitskij Georgij M. Home Page
• Welcome to Astronomical Circular

... Radio astronomical tests of the engineering model of the space radio telescope (SRT) were completed in Pushchino - see Results . ... Monitoring of the development of the upgrade on-board 1.35-cm receiver (R-SRT-1.35 cm): . ... EM Engineering Model . ... OHCFS-SRT Space Radio Telescope On-board Heterodyne and Clock Frequency Synthesizer set . OHFS-SRT Space Radio Telescope On-board Hydrogen Frequency Standard . ORFS-SRT Space Radio Telescope On-board Rubidium Frequency Standard . ...

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