... Local and Regional Coordinators, and OBSERVERS are needed for Friday night's spectacular Aldebaran Occultation and Graze Aldebaran is the brightest star, other than the Sun, that can be occulted by the Moon. ... Use your camcorder (or a borrowed camcorder) to record a strong local television station. ... Encourage other amateur astronomers, and other friends and relatives in the region of visibility to record the occultation with camcorders. ... This event is called an "occultation" by astronomers. ...

... Hartmann Test Using a Screen With Four Holes 2 Hartmann test with four holes screen The theoretical concept of the primary aberrations measurement by four apertures Hartmann test introduced by "Malacara" * and "SalasPeimbert et. al. ... Black curve show the calculated coefficients for phase screens which have 8 modes of Zernike aberrations and red curve show the calculated coefficient for original phase screen. (a) astigmatism 45 (b) astigmatism 090 14 Coma Coma modes of Zernike aberration. ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . ... SSRT - Possibilities of observing . ... Investigations of the SSRT 5.7 GHz radio maps in conjunction with images obtained in other emission ranges, suggested the following conclsions: . ... Solar images obtained in line H a ;(on the left, 16:11 UT, Big Bear observatory) and in the microwave emission (on the right, 04:04 UT, SSRT) 4 march 1997 . ...

SLIDE 1 Coherent beam­beam e#ects study. ... He has shown that a finite length (in other words equal to # # ) of colliding bunches can lead to the coupling of synchro­betatron modes in the beam­beam system, and thus a head­tail type instability of colliding bunches may arise. ... These modes have been observed in di#erent machines. ... SLIDE 5 Figure shows the dependence of the measured and calculated synchro­betatron mode tunes on the beam current for equal electron and positron bunch intensities. ...

... Из них 20 человек из провинции Онтарио (Ontario), 9 человек из провинции Квебек (Quebec) [при этом 17 полуфиналистов представляли т.н. Национальную столичную область - National Capital Region]. 4 человека были из провинции Альберта (Alberta). ? ... Ontario . ... Quebec . ... National Capital Region . Ottawa-area . ... Alberta . ...

... Astro Space Centre , Lebedev Physical Institute RAS, Moscow. ... Cosmonaut Training Centre, Star City, Moscow Region. ... Coordinational Scientific Information Center of Russian Space Forces. ... Institute for Chemistry and Physics RAS, Moscow. ... Institute for Geo-Electromagnetic Research RAS, Moscow Region, Troitsk. ... Institute for Physics and Power Engineering RAS, Kaluga Region, Obninsk. ... Copyright RSSI 1993-1997, Space Research Institute RAS Network Information Centre ...

... IONOSPHERIC DATA IN THE INTERACTIVE SPIDR SYSTEM . ... The Ionosphere The ionosphere is that part of the upper atmosphere where free electrons occur in sufficient density to have an appreciable influence on the propagation of radio frequency electromagnetic waves. ... These regions may be further divided into several regularly occurring layers, such as F1 or F2. ... E Region: The region between about 95 and 150km above the Earth that marks the height of the regular daytime E layer. ...

. Experimental base . • . Yakutsk Extensive Air Shower (EAS) Array . • . Polar Geocosmophysical Observatory (PGO) . • . Complex Geophysical Station (CGS) . • . Optical Station . • . Radiophysical Station . • . Yakutsk Cosmic Ray Spectrograph . • . Magnetic Observatory . • . Ionospheric Station . • . Station for Receiving of Satellite Information .

Общая Астрономическая Конференция > Товары для астрономов > Полезное для астрономии > SN 6 Pro + . ... 10.10.2009, 02:07 . В августе этого года(2009) появился апдейт для "SN 6 Pro +" (размером 339.7 Mb + 7 MB) с версии 6.0 до версии 6.3.6 . ... New minor planets and their moons have been added and updated. ... Tully database improved to allow for more galaxy types. ... Не могли бы Вы дать ссылку на место расположение обновления (что-то я не смог найти у них на сайте). ...

... В теме В разделе По форуму . ... Практическая астрономия ? Астрономия и компьютеры (Модераторы: Deimos , Ed_Vazhorov ) ? Коллекция на SKY-MAP.ORG . ... 16.03.2007 [07:37:05] ? ... Записан . ... Сообщений: 256 . ... http://server6.sky-map.org/map?w=256&h=256&ra=12.66666666666667&de=0&angle=10&mag=9.4&grid_ra_step=0.5&grid_de_step=7.5&x_shift=128&y_shift=-128&locale=RU&show_grid=0&show_const_lines=0&show_const_boundaries=0&borders=0&show_const_names=0&show_galaxies=1&language=RU&zoom=3.2 . ...

... 35, No. 2, pp. 87­99. i Star Formation History in the Central Region of the Barred Galaxy NGC 4245 O. K. Sil'chenko1* , I. V. Chilingarian1, 2 , and V. L. Afanasiev 1 2 3 Sternberg Astronomical Institute, Universitetskii pr. ... The galaxy has been found to possess a pronounced chemically decoupled compact stellar nucleus, which is at least a factor of 2.5 richer in metals than the stellar population of the bulge, and a ring of young stars with a radius of 300 pc. ... NGC 4245. ...

... 18941904; Bespalov P.A. Effective saturation of absorption in a plasma magnetospheric maser. In book: Nonlinear Space Plasma Physics, R.Z. Sagdeev -Editor-in-Chief, American Institute of Physics, 1993, p.339-346]. Magnetospheric plasma maser [Bespalov P.A, Trakhtengerts V.Yu., ... In a magnetospheric plasma maser (MPM) the relatively dense magnetised plasma and the conjugate ends of a magnetic trap form a quasioptical resonator for electromagnetic waves. ...

The Nuclear Structure of 3C 84 with Space VLBI (RadioAstron) Observations PoS(EVN 2014)021 Gabriele Giovannini1,2 , Monica Orienti2 , Tuomas Savolainen3,4 , Hiroshi Nagai5 , Marcello Giroletti2 , Kazuhiro Hada2,5 , Gabriele Bruni4 , Jeffrey Hodgson4 , Mareki Honma5 , Motoki Kino6 , Yuri Y. Kovalev7 , Thomas Krichbaum4 , Sang-Sung Lee6 , Andrei Lobanov4 , Bong Won Sohn6 , Kirill Sokolovsky7 , Peter Voitsik7 , J. Anton Zensus4 . ... 2014, Tavecchio and Ghisellini 2014). PoS(EVN 2014)021 2. ...

... Сегодня: 10 апреля 2016 г. Главная камера космического телескопа Hubble возобновила работу, сообщает AP. Как говорится в официальном сообщении, распространенном NASA в пятницу вечером, главная камера телескопа, вышедшая 19 июня из строя из-за перегоревшего транзистора во "вспомогательной" микросхеме, переключена на запасной источник электроснабжения. ... Ожидается, что главная камера телескопа Hubble передаст на Землю первое изображение, полученное после ее ремонта, в ночь на понедельник. ...

... Free image alignment/stacking/processing Software . My lunar drawings . ... REAL TELESCOPES . ... Download Pocket-Aberrator . ... The Aberrator is freeware that generates star-testing images to show the effects of aberrations (distortions) influencing the quality of a telescopes performance. ... The idea to make a program like the Aberrator I got after studying many internet-sites on star-testing and often the effects of certain aberrations were only available as literal descriptions. ...

КОСМИЧЕСКИЙ КАЛЕНДАРЬ ЯНВАРЯ 2000 ГОДА . ... Jan 01 - Year 2000 . Jan ?? ... Jan 01 - Asteroid 1996 AX1 Closest Approach To Earth (0.702 AU) . ... Jan 03 - Asteroid 3745 Petaev Closest Approach To Earth (1.862 AU) . ... Jan 05 - Asteroid 1999 VO11 Near-Earth Flyby (0.218 AU) . ... Jan 08 - Comet P/1998 VS24 (LINEAR) Closest Approach To Earth (2.915 AU) . ... Jan 12 -[Image][Dec 02] Asteroid 1999 WA2 Closest Approach To Earth (1.100 AU) . ... Jan 14 - Mercury Occults 53 Sgr (6.9 Magnitude Star) . ...

. Here it seems you see only diffuse top clouds. But actually i'd like to show you the optical effect known as "Glory". It consists in formation of colored circles around the shadow of the plane . hovering under the clouds.

... 16-mm/2.8 Fish-eye . ... I set up my Edixa Prismaflex TTL on a tripod outside the dome at Zeiss 50" and opened the camera for several hours. The 2.6 m Shain reflector is visible at center. The time exposure of about 5 hours duration showing circumpolar stars. The dome can be seen to blur slightly due to their motion during the exposure. Back to Astronomical Images Home Page . ...

... Catalog . Publications . ... Koposov, S., Glushkova, E., Zolotukhin, I. 2008: Automated search for Galactic star clusters in large multiband surveys. ... BibTeX entry ] . ... Glushkova, E.V., Zabolotskikh, M.V., Koposov, S.E., Spiridonova, O.I, Vlasyuk, V.V., Rastorguev, A. S. 2010: Photometry of the poorly studied galactic open star clusters King 13, King 18, King 19, King 20, NGC 136, and NGC 7245 , Astronomy Letters, 36, 75 . ...

... VaST is a software tool for finding variable objects on a series of astronomical images. ... VaST performs object detection and aperture photometry using SExtractor on each image, cross-matches lists of detected stars, performs magnitude calibration with respect to the first (reference) image and constructs a lightcurve for each object. ... VaST FITS image viewer ./pgfv . ... Part I" PZP, vol. ... K. V. Sokolovsky, S. A. Korotkiy; "New Variable Stars Discovered by the NMW Survey" PZP, vol. ...