The Future of Almanac Services An HMNAO perspective .. ... HM Nautical Almanac Office History (I) Earliest texts considered to be almanacs go back to second millennium BCE ­ hemerologies and parapegmata Babylonian, Greek and Islamic almanacs ­ zijs and tables Medieval almanacs ­ RegioMontanus (1472) HM Nautical Almanac Office History (II) Early Astronomical Ephemerides La Connaissance des Temps ou calendrier et ИphИmИrides du lever coucher du Soleil ... HM Nautical Almanac Office ...

... Radio-astronomy - the First Branch of Non-Optical Astronomy. Mechanismes of Radiation Generation by Astronomical Bodies. Laws of Blackbody Emission for R-Range. ... Characteristics of Radiation: Spectrum, Polarization. ... Conception of Antenna Temperature. ... Radio-astrometry: Methods of Determination of Radio Sources' Coordinates and Their Measuring by Interferometers. ... Morphology and Basics of Solar Radiation Physics: the Main Component, Slow Changing Component, Sporadical Radiation. ...

... Head of the seminar: Prof. B.V. Somov, . ... The seminar considers the questions related to generation of magnetic fields in astrophysical plasmas, effect of the magnetic reconnection and particle acceleration in strong magnetic fields, the origin and propagation of cosmic rays, the flares and other non-stationary phenomena in the solar atmosphere and solar wind, Sun Earth connections and physical processes in the heliosphere. ... On the Topological Models and Topological Trigger of the Solar Flares...

Up: A Database of Optical Previous: Bibliography . A Database of Optical Constants of Cosmic Dust Analogs . This document was generated using the LaTeX 2 HTML translator Version 2K.1beta (1.48) . Copyright ї 1993, 1994, 1995, 1996, Nikos Drakos , Computer Based Learning Unit, University of Leeds. Copyright ї 1997, 1998, 1999, Ross Moore , Mathematics Department, Macquarie University, Sydney. ... The translation was initiated by root on 2003-03-06 . root 2003-03-06 ...

GEOMAGNETIC POLAR CAP (PC) INDEX The PC-index is a fifteen-minute index for magnetic activity in the (P)olar (C)ap. It is based on data from a single nearpolar station, and aimed to monitor the polar cap magnetic activity generated by such solar wind parameters as the southward component of the interplanetary magnetic field (IMF), the azimuthal component of the IMF (By), and the solar wind velocity (v). ... 1988), Vennerstrom (1991), and Vennerstrom et al. 1991). ...

Introduction The suggested invention relates to attitude control system of a spacecraft. ... Systems without interaction with ambient (Systems with jet engines) Here, for instance, we can put systems, which can generate torque because of jettisoning any particles or gas. ... The main element of the suggested attitude control system is an electrical motor, which main feature is absents of a stator. ... 3 Block diagram of an attitude control system on a jet engines base. ... It is a system with| | ...

... 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. ...