... Spherical aberration, coma, and astigmatism are also easily observed using the star test. ... Off-axis images are complex. ... Fig. ... Diffraction by a circular aperture as a function of defocus for no aberration Airy Disk 1 wave defocus Less than 1 wave defocus Fig. ... Diffraction by a circular aperture as a function of defocus for third-order spherical aberration Paraxial Focus Small distance inside paraxial focus Moderate distance from marginal focus Immediate neighborhood of marginal focus Fig...

NMW survey overview . Access image archive . ... The New Milky Way survey aims to detect bright (V<13.5) optical transients near the Galactic plane using an automated wide-field (8x6 deg.) system capable of surveying the whole Milky Way area visible from the observing site in one night. ... All images obtained during the transient search survey are available online (please use the image archive access form ). ... Images per field: . ... Images per night: . ... Milky Way imaging time: . ...

... Our scientific interest is an accuracy of asteroid CCD observations obtained by amateurs and professional astronomers all over in the World. ... These data help us to analyse an accuracy of real CCD positions in the MPC Database. ... Do you test your observations of the small Solar System bodies permanently before sending them to the International Minor Planets' Center? ... Do you know a real accuracy of your positional CCD-observations in comparison with the other observatories' one ? ...

... Sternberg State Astronomical Institute, Moscow, Russia . ... The Sc galaxy NGC 6181 was observed at the 6m telescope of SAO RAS with the scanning Perot-Fabry interferometer in the H-alpha emission line and at the 1m telescope of SAO RAS in BVRI broadband filters with CCD. ... Sil'chenko, O. K. Sternberg State Astronomical Institute, Moscow, Russia . ... COMPLEX FORMATION HISTORY OF LENTICULAR GALAXIES WITH STELLAR COUNTERROTATION: NGC 4138 AND NGC 4550 . ... YOUNG NUCLEI IN DWARF ELLIPTICAL GALAXIES...

General Information . ... Local Information . ... The city represents great cultural value because in the late 19th and early 20th centuries, Kislovodsk as a fashionable spa attracted many musicians, artists, and members of the Russian aristocracy. ... Double room with full pension (breakfast, lunch, dinner) - 2620 rubles per person per night. solnechniy . ... Citizens of most countries need visa to enter the Russian Federation. ... Victor Kornilov, Sternberg Astronomical Institute (chair) . ...

... Оргкомитет 27 января 1998 г. ПРЕДЛОЖЕНИЯ О РАБОТЕ Date: Wed, 18 Feb 1998 20:44:43 +0300 (MSK) From: "Kim Iraida S. 939-2245" Subject: Employment opportunity in Colombia Dear colleagues, Prof. Benjamin Calvo (Bogota, Colombia) requested me about young Russian PHD who could join him for solar researches in Colombia. ... Please, let me know if you hear of astronomers who eventually want to work in Colombia, doing astronomical research and helping forming people in astronomy seriously. ...

... Source File: mod_cern_meta.c . Module Identifier: cern_meta_module . Compatibility: Available in Apache 1.1 and later. ... There are many ways to manage meta information, this one was chosen because there is already a large number of CERN users who can exploit this module. ... Context: directory . ... Compatibility: MetaFiles is only available in Apache 1.3 and later. ... Context: (Apache 1.3) directory . ... Specifies the name of the directory in which Apache can find meta information files. ...

The 2dF QSO Redshift Survey (2QZ) . ... Before jumping into all the finer details of teh survey, a brief non-astronomer's guide to redshift surveys is available. ... The primary scientific aims of the QSO survey are: (1) to obtain the primordial fluctuation power spectrum out to COBE scales, (2) to determine the rate of QSO clustering evolution in the non-linear and linear regimes and hence obtain new limits on the value of and the bias parameter, (3) to apply a powerful geometric method to measure . ...

... Сегодня: 10 апреля 2016 г. Десятки пилотов American Airlines требуют от авиакомпании ввести запрет на полеты самолетов Airbus A300 до тех пор, пока не будут выяснены все обстоятельства крушения самолета этой модели в ноябре прошлого года в Нью-Йорке, передает Reuters. ... В American Airlines, подразделения AMR Corp., около 400 пилотов управляют широкофюзеляжными самолетами Airbus A300. ... Пилоты American Airlines отказываются летать на Airbus A300 . ...

... The paper tracks basic evolution of the Soviet rocket and space industry after the 1946 and analyzes "genealogical trees" of the original enterprises (NII-88, NII-885, OKB-456, etc.) to reveal typical features of this evolution. ... The paper tracks basic evolution of the Soviet rocket and space industry after the 1946, when an original set of institutions was established. ... The study demonstrates, that the evolution of the Soviet rocket and space industry is more complicated, than usually...

. V L B I L a b o r a t o r y .

... A.Tsivilev (Pushchino Radio Astronomy Observatory) "Investigation of Orion A nebula by radio recombination lines". ... T.D.Dorokhova (Astronomical observatory of Odessa national university) «Researches of rapidly oscillating Ap stars». ... N.V.Grabko (Odessa State Ecological University), M.I.Ryabov (Odessa Observatory of IRA NANU) "Space Weather and us: influence of change of a condition of solar and geophysical activity on reaction of various systems of an organism of the person". ...

Drexel University . ... Palomar observatory . National Optical Astronomy Observatory Image Gallery . ... Harvard-Smithsonian Center for Astrophysics . La Silla Observatory Home Page . Canadian Astronomical Society CA . ... American Physical Society . American Astronomical Society . The Royal Astronomical Society of Canada . Indiana University . Center for Particle Astrophysics . ... Peoria Astronomical Society . ... The National Optical Astronomy Observatory . ...

... Phys., 45, 409-419 10.02.2010 , . PLHR: o 50 / 60 / 100 / 120 o MLR: o 50 / 60 / 100 / 120 o o , - PorojДrvi 17/11/1993 Total power -5 dB 1,8 -15 1,7 -25 1,6 14.09 14.11 Time(UT) -35 14.13 Frequency (kHz) 4,2 4,1 4,0 07.30 -30 -40 07.45 Time(UT) 07.00 10.02.2010 Frequency (kHz) PorojДrvi 25/01/1993 Total power 4,3 -20 dB , . ... 10.02.2010 , . ... f1 < < fn < fn+ 1 20 ms 128 Frequency (kHz) 1,8 1,8 Frequency (kHz) 4 dB 0 -20 1,7 1,7 1,6 0 10.02.2010 30 Time(sec) 60 1,6 -40 0 0,3 Time(sec) 0,6 , . ...

. per aspera ad astra . Russian . MAIN . ABOUT . RESEARCH . STAFF . SEMINARS . PUBLICATIONS . RADIOASTRON . links . Seminar of theoretical department of ASC . Theme of seminar . Chief Dr. Lukash V.N. Secretariat Dr. Mikheeva E.V. ( helen@lukash.asc.rssi.ru ), . tel. 333-33-66. News . 12 апреля 2007 года . Report of Head of theoretical department ASC Dr. Lukash V.N. "Dark Matter" . Copyright (c) Astro Space Center . Для контакта с webmaster . Last update: July 2007 .

Компания 'American Satellite Co' (ASC) заключила с НАСА договор о выводе на орбиту с помощью шаттла принадлежащего ей КА 'ASC-2'. ... В ноябре 1985 года среди сотрудников компании был проведен отбор, финалистом которого стал: . ... После того, как компания 'American Satellite Co' оплатила подготовку своего специалиста, был составлен план обучения и он приступил к подготовке. Запуск спутника планировалось выполнить во время полета STS-71C в январе 1987 года. ...

... Schedule IKI RAN Data Acquisition, Processing and Dissemination Center . SRC "Planeta" Data Acquisition, Processing and Dissemination Center . Sea Surface Temperature Adriatic Sea . Baltic Sea . Barents Sea . Black Sea . ... Composite Image of Cloudiness Russia . ... Regional Archive (only cloudless data) . ... Operative Regional Archive (all data for last 3 days) . ... NOAA Data on other Servers (about Russia) . For more information send a mail to: info@sputnik.infospace.ru . ...

Statistics of sunspot activity . ... The solar regions . ... The description of the solar regions . ... The growing bipolar group had appeared at the tenth parallel of the Southern hemisphere 30.04.04, to the West from the central meridian. ... The high latitude bipolar formation was observed in the Southern hemisphere since 3.05 to 9.05.04, in the Eastern part of the Sun disc. ... The small bipolar region was observed at mid latitudes of the Southern hemisphere since 30.10 to 7.11.04. ...

... Поход в Турцию, 29 октября - 8 ноября 2015 . Поход в Армению, 14 - 29 августа 2015 . Поход в окрестности Нижнего Новгорода, 30 апреля - 4 мая 2015 . ... Поход в Крым, 12-21 октября 2012 года . Поход на Кавказ, 18 июля - 1 августа 2012 года . Поход в Белоруссию, 27 апреля-3 мая 2012 года . Лыжный поход в Ловозерские тундры (Кольский полуостров), 7-18 марта 2012 года . Лыжный поход на Белое море, 1-9 января 2012 года . Поход в Крым, 14-23 октября 2011 года . ...