... Путеводитель астронома по Inter Net. (9 лучших линков в интернете на каждую астрономическую тему) . ... Астрономические данные в Интернете. ... Официальные астрономические учреждения России. ... Лучшие астрономические персональные страницы - AstroTop. ... Приведу некоторые www-страницы астрономических учреждений России, которые могут послужить хорошей отправной точкой в поиске нужной Вам информации по астрономии. ... Недаром на данный ресурс есть ссылки со многих астрономических страниц России. ...
... Ее спектральный класс A3 V (некоторые источники указывают A4 V ), видимая звездная величина 1.16, температура поверхности - 8540 К. Масса звезды оценивается в 2.06 солнечных масс, радиус - в 1.82 + 0.06 радиусов Солнца, светимость в 16 раз превышает солнечную. ... Минимальная масса (параметр m sin i ) планеты HD 48265 b - 1.3 массы Юпитера. ... Минимальная масса планеты кси Орла b - 2.3 массы Юпитера, она вращается вокруг своей звезды на расстоянии 0.68 а.е. и делает один оборот за 137 дней. ...
. Comment on J1720-0058 . Resolved: this FR-II radio galaxy is not detected at 2.3 GHz by Preston et al. (1985). A VLA map at 8.4 GHz is published by Swain, Bridle & Baum (1998). However, there is correlated signal at the shortest baselines from which a position has been derived and is listed in the table. Our best guess is that the residual core has a flux density of 0.15 Jy and a size of ~15 mas. See Figure 3. VLBApls home page . Last modified: 16 Oct 2000
... 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 ? ...
... Imaging GRIN Rod Lens (HAG's) | Relay Rod Lens (LAG's) | ... The Refractive Index Distributions (RID) in GRIN lens preforms are made by multi-stage optimized ion-exchange diffusion between silicate mineral glasses and salt melts. ... In the LAG lenses - L ow A perture GRIN the nature of the changing of refractive index in glass via ion-exchange lies mainly in molecular volume increase. ... LAG lenses are specially treated to create the dark anti-flick surface coating (Fig.2). ...
... part 1 | ... The Basic Stages in Earth's Pre-geological Development . ... After fragments of the Vortex sleeves separated, whirlwinds of second and third orders ("NC" - new micro-vortex) were generated- future planet cores and their satellites - all of them developing independently, governed by the common laws of development of cosmogenic vortexes. ... Our planet's core today is comprised of considerably deteriorated cosmogenic vortex; consequently, the Earth has a moderated magnetic field. ...
... Subject and Problems of Stellar Astronomy. ... Plane of Galaxy, Methods of Its Location Determination. ... Stars Distances. ... Other Methods of Stars Distances Determination. ... Tangential Velocities, Their Determination by Self-Motions. ... Determination of Solar Apex and Spatial Velocity by Radial and Spatial Velocities of Stars. ... Features of Orientation and Parameters of Peculiar Stellar Velocities Ellipsoid. ... General and Selective Light Absorption in Galaxy. ... Darc Clouds in Galaxy. ...
... 000, 112 (2009) Printed 11 February 2010 A (MN L TEX style file v2.2) Analytical approximations of K -corrections in optical and near-infrared bands I1gor V. Chilingarian1 2 ,2,3 , Anne-Laure Melchior 1,4 and Ivan Yu. ... Received 2010 February 01; in original form 2009 August 14 ABSTRACT To compare photometric properties of galaxies at different redshifts, the fluxes need to be corrected for the changes of effective rest-frame wavelengths of filter bandpasses, called K -corrections. ... Table 1. ...
VISTA Data Flow System: Status Jim Emerson*a, Mike Irwinb, Nigel Hamblyc b a Astronomy Unit, Queen Mary Universit y o f London, Mile End Road, London E1 4NS, UK Inst itute of Astronomy, Universit y of Cambridge, Madingley Road, Cambridge CB3 0HA, UK, c Inst itute for Astronomy, School of Phys ics, Universit y of Edinburgh, Edinburgh EH9 3HJ, UK ABSTRACT Data from two IR survey cameras UKIRT's WFCAM and ESO's VISTA can arrive at rates approaching 1.4 TB/night for of order 10 years. ...
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Глава 2. Система проектирования MAX+PLUS II . ... В системе MAX+PLUS II можно как читать, так и записывать файлы на языке AHDL и файлы трассировки в формате EDIF, файлы на языках описания аппаратуры Verilog HDL и VHDL а также схемные файлы OrCAD. ... создание нового файла (design file) проекта или иерархической структуры нескольких файлов проекта с использованием различных редакторов разработки проекта в системе MAX+PLUS II, т.е. графического, текстового и сигнального редакторов; . ...
Dst INDICES ------------------------------------------------------------------- Dst (Disturbance Storm Time) equivalent equatorial magnetic disturbance indices are derived from hourly scalings of low-latitude horizontal magnetic variation. ... This diskette contains the hourly indices for the period 1 Jan 1957 through 30 Sep 1992, as derived by M. Sugiura and T. Kamei, WDC-C2 for Geomagnetism, Faculty of Science, Kyoto Uni- versity, Kyoto 606, Japan. ...
... 23 Algorithm fo r evalua tion of two burn maneuv ers using linearity Input information: ( t t E1 , rEI , v t1L , t E2 2L ( ) EI )T )T the time and the state vector of initial orbit for this time ; interval of possible thrusts for transition from initial orbit to the transfer on e; the time and the state vector of the target orbit for this time ; ... We cal culate the state vector for the initial orbit for the time t1a and the target one for the time t2 a . ...
About V I spectral lines with overlay of Zeeman and hyperfine structure splitting in spectra of sunspot umbra S.G. Mozharovsky Ussuriysk Astrophysical Observatory of FEB RAS, Ussuriysk, Russia sw@newmail.ru Abstract. ... Overlay of components of the different types can allow obtain the parameters of the magnetic field by the ratio of the component intensities. ... The structure of Zeeman splitting which follows from the parameters of the line atomic levels can be seen in Figure 1. [pic] Figure 1. ...