... astro-ph . ... Whitespace-separated words are treated as AND ed. Show 10 50 100 articles per page in Full Compact mode . ... Quasar Variability in the Framework of Poissonian Models . ... It is shown that in this very general framework the well established anti-correlation between variability amplitude and wavelength can only be understood as an effect of an underlying spectral component which remains stable on long time-scales, and is redder than the variable component. ...

. Russian Version [ MS-Win ] . [ News ] . [ Satellite data ] . [ SMIS ] . [ ] . The program is intended for spectral and correlation analysis of satellite images. It contains an large set of spectral and spatial filters. It may be applied for interpolation and data analysis in areas with incomplete information. It allows for approximation of spectrum and correlation functions. Price . Back to SMIS Home Page .

... European Southern Observatory at Site 2010 Kislovodsk Collaboration University of Lethbridge, Canada ­ R. Querel, D. Naylor, G. Tompkins U. Valparaiso ­ A. ChacСn, O. Cuevas, M. Cure, L. Cortes, M. Caneo, L. Illanes ­ J. ThomasOsip, G. Prieto ­ A. OtАrola, M. SchЖck, T. Travouillon ­ R. Hanuschik, M. Sarazin, C. Guirao, G. Avila, G. Lo Curto, I. Saviane, A. Pizarro, G. Ihle, J. Navarette, A. Smette, D. Rabanus Site 2010 Kislovodsk, Oct 5th, 2010 2 GMT, Las Campanas TMT ESO F. Kerber et al. ...

Statistics of sunspot activity . The sunspot indices . ... Visual indices of solar activity . ... n - number of spot groups . A - Waldmeier class of unipolar spot groups without penumbra . B - class of bipolar spot groups without penumbra . C - class of bipolar spot groups with one penumbra pole . D - class of small bipolar spot groups with two penumbra poles . E - class of middle bipolar spot groups with two penumbra poles . ... H - class of unipolar penumbrated spot groups . ...

... Direct data transmission rate (Mbps) . ... the density of electron fluexs with energies in four bands from 0.04 MeV to 1.7 MeV; . ... sensor (TV, IR) data and heliogeophisical information (HGI) transmission to data receiving and processing centers at a rate of up to 2.56 Mbps; . ... 1.76 GHz - TV- and heliogeophysical information and DCLI's data transmission to data receiving and processing centers; . 7.5 GHz - TV- and heliogeophisical data transmission to data receiving and processing centers; . ...

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... Using the CFBDSIR wide field survey for brown dwarfs, we identified CFBDSIRJ214947.2-040308.9, a late T dwarf with atypically red J-Ks colour. ... SN 2009ip in NGC 7259 Electronic Telegram No. ... 7.09, [19.0; 2009 Aug. ... Accepted for publication in MNRAS Subjects: High Energy Astrophysical Phenomena (astro-ph.HE) The jet opening angle theta_jet and the bulk Lorentz factor Gamma_0 are crucial parameters for the computation of the energetics of Gamma Ray Bursts (GRBs). ...

Ultraviolet data (DUV) . ... The section "Original data" contains original information in analogue-digital and digital- analogue codes. The section "Data for analysis" contains pre-processed data for further analysis. Tatiana" program can be used for graph presentation of the experimental data, and "Orbitron" program - for geographical control of the data. Manual on how to use the programs and the data is in the HELP-file. ... Original data . Data for analysis . Tatiana program . ...

... Advises . Contact Advises . As an advise for amateurs we would like to underline: if it's possible, try to observe 3 asteroid positions per night and do not neglect to observe the Numbered Minor Planets in your telescope field of view as a "by product" of your observational programs. ... We think such estimations ought to be produced every morning after CCD observations of the moving celestial objects by observer himself. ...

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 . ...

... Bad Astronomy . Misconceptions . ... Bad Astronomy : The Moon only shows one face to us because it is not rotating. Better astronomy : The Moon only shows one face because it is rotating, once every time it revolves around the Earth. ... Place the Moon model on the table about 30 centimeters (one foot) away with the X facing the Earth model. ... You'll see that to keep the X facing the Earth model, you have to rotate the Moon model as it goes around the Earth model . ... 2008 Phil Plait. ...

... Submitted by Al Takeda on 02/03/2011 11:15:24 . M17 (NGC 6618) . The Swan Nebula (also called the Omega Nebula, Checkmark Nebula, Horseshoe Nebula and the Lobster Nebula (in the southern hemisphere) is a star forming region whose hydrogen gas is being excited by hot young stars. Narrowband H-a:O-III:S-II - 35:30:15 minutes, 5-minute unbinned sub frames. Takahashi Epsilon-180, SBIG STL6303E CCD camera, ATMoB Clubhouse. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... SHORT TERM PREDICTION OF POWER SOLAR FLARES FROM SSRT DATA . The algorithm for short term prediction of powerful solar flares, based on SSRT data, includes microwave emission characteristics in total and polarized flux, the structure of active region (AR) magnetic field at the photospheric level, and H a patrol data. ... During this period, 7 AR's crossed the solar disk, in which 20 flares of importance ? ... Data on AR's and magnetic fields were received from the Sayan observatory by teletype. ...

... The polarimetric data pinpoint the illuminating star, which is not detected directly at wavelengths Й2 km, at a position well within the dark lane that bisects the nebula, 0A 5 .5 (D550 AU) southwest of the infrared peak that was previously detected at the southern tip of the northern polar lobe. ... 531 FIG. ... FIG. ... We have used the position of the polarimetric centroid combined with the vector pattern to determine the direction of the projection of the polar (major) axis of the Egg Nebula. ...

... A correlation between metal abundance and orbital elements (the eccentricity and angular momentum) has been found for three semples of disk stars of our Galaxy with abundance derived from detailed analysis. The correlation indicates that metal abundance in the Galaxy kept increasing after the birth of old disk stars and that the Galaxy kept collapsing during the formation of its disk subsystems. ...

... ASTROPHYSICS 105 113 114 116 121 126 132 135 137 141 147 150 THE KINEMATICS PARAMETERS OF THE GALAXY USING DATA OF MODERN ASTROMETRIC CATALOGUES Akhmetov V.S., Fedorov P.N., Velichko A.B., Shulga V.M. .. ... Subsection "VIRTUAL OBSERVATORIES AND INTENSIVE DATA" 166 168 171 175 181 186 COMPARISON OF ZERO ZONE CATALOGUES OF THE FON PROGRAM BASED ON THE KYIV AND KITAB OBSERVATIONS Andruk V.M., Relke H., Protsyuk Yu.I., Muminov M.M., Ehgamberdiev Sh.A., Yuldoshev Q.X., Golovnia V.V. .. ...

Электронная библиотека астронома-любителя. ... библиотека . архив RSN . ... Ru.Space.News: . Март 1998 . ... Дата: 16 марта 1998 (1998-03-16) От: Alexander Bondugin Тема: Lunar Prospector Update - March 11, 1998 Привет всем! ... Дата: 16 марта 1998 (1998-03-16) От: Alexander Bondugin Тема: Mars Surveyor 98 Update - March 13, 1998 Привет всем! ... Дата: 16 марта 1998 (1998-03-16) От: Alexander Bondugin Тема: Sky Telscope News Bulletin - March 13, 1998 Привет всем! ...

... Numerical Modeling of RadioAstron SRT Temperature Deformations M. Yu. Arkhipov, I. S. Vinogradov, S. B. Novikov, and S. D. Fedorchuk Astro Space Center, Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia e mail: rusengineer@mail.ru Received December 16, 2013 Abstract--The results of modeling the thermal deformations of a space radio telescope's reflecting surface are presented in the paper. ...

Альянс "Lockheed Martin" с "Final Analysis" . Российский гражданский флот лишился спутниковой связи . ... 16 февраля компания "Lockheed Martin Management & Data Systems" (M&DS) объявила о подписании с фирмой "Final Analysis, Inc." ... В соответствии с соглашением, подразделение корпорации "Lockheed Martin" будет монопольным поставщиком работ по сетевой системотехнике и интеграции для низкоорбитальной системы спутниковой связи FAIsat, создаваемой "Final Analysis". ...

... 18 июня 2000 . ... Млечный Путь в окрестностях Южного Креста . Благодарности: Greg Bock , Southern Astronomical Society . Пояснение: Поразительная небесная заплата в центре этой фотографии была бы у вас над головой, если бы вы стояли на Южном Полюсе Земли. ... четыре звезды, которые отмечают границы знаменитого Южного Креста . ... оранжевая Гамма Южного Креста . ... темная туманность Угольный Мешок , а у правого края яркая туманность Киля . ... А. Сергеев , оформление, 1999, 2000. ...