Russian version of HP . ... StarCalc is the fastest professional astronomy planetarium & star mapping program for Windows 9x/ME/NT/2000/XP (StarCalc version for PocketPC computers you can found here ). ... Extensibility : This program is based on common "Plugin StarCalc interface to catalogs and object groups", which allows program to add new modules as Plugins. ... Welcome to the Pocket StarCalc Home Page: . ... Some bugfixes in eclipses" and line" plugins - see the new versions in downloads page. ...

... After all we cannot send a probe to the star Altair to confirm that it is 17 light years away. ... The "Bessel determined that the star 61 Cygni was about ten light years away" Earth goes around the Sun in one year, so in six month it is in the opposite position in its orbit. ... In 1838 Bessel determined that the star 61 Cygni had a parallax of 0.314 arcseconds and therefore the star was about ten light years away (today the distance is more precisely measured to be 11.4 light years). ...

... The chemically peculiar star HD965 belongs to a rare type of very slow rotators. As far back as in the 90s, G.Mathys (ESO, Chile) supposed its extremely slow rotation as observing split Zeeman components in the spectrum, from which he measured the magnetic field on its surface. Field variation proved to be very slow, and G.Mathys determined that the variability period should be longer than two years. ... Up to now, only two stars with periods longer than 20 years are known. ...

... 1.Magnetic and magneto-elastic properties of heavy rare earth metals. ... High magnetic fields of 100 kOe and more were necessary to saturate the magnetization of havy rare earth metals. ... It was shown that the effective exchange field theory is sufficient for the description of the magnetic order in heavy rare earth metals and their compounds. ... The duality of the state of the magnetic carriers in the traditional 3d-magnetic materials. ... LHPP ISSP RAS © 2004 All rights reserved ...

... Credit Copyright: Tycho Brahes Glada Vдnner Explanation: Tycho Brahe was the most meticulous astronomical observer of his time. ... To do this he and his assistants created the first major astronomical observatory where they devised and used the most accurate pre-telescopic astronomical instuments. ... Brahe is also remembered for witnessing a supernova in 1572, showing that the Great Comet of 1577 was not an atmospheric phenomena, and for his metal nose . ... Tychos Supernova Remnant . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. May 30, 1999 . Tycho Brahe Measures the Sky . Credit: Tycho Brahes Glada VДnner . Explanation: Tycho Brahe was the most meticulous astronomical observer of his time. ... To do this he and his assistants created the first major astronomical observatory where they devised and used the most accurate pre-telescopic astronomical instruments . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit–їs . ... les plus belles images de l'Univers d–їcrypt–їes pour vous . ... Accueil –А observer : V–їnus, Spica et des –їtoiles filantes . ... Surveillez aussi les –їtoiles filantes . Lorsque le ciel devient sombre, il se peut que quelques m–їt–їores z–Rbrent le ciel, car c'est actuellement le pic d'activit–ї de l'essaim d'–їtoiles filantes des Aurigides . ... 08/08/2013 - Les Nuits des –їtoiles 2013 : cвАЩest parti ! ...

... 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 Wind spacecraft. ... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... For additional details and updates, see the home page of the "Wind" mission. Exploration" home page (index) Glossary . ...

... 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...

Next: Galactic potential Up: Space and velocity distributions Previous: Space position . The initial velocity of young neutron stars can be taken either from the observed pulsar velocity distribution (which is still not firmly established), or from some model-dependendent assumptions based on current ideas about neutron star formation. ... At the same time we need know the distribution of projected velocities on the direction of the systematic motion in the Galaxy (i.e. on the direction of ) . ...

Physica C 1 PHYSICA C C ELSEVIER CONDUCTIVITY and Antiferromagnetism of CaCuO2 Thin Films Doped by Sr Gennady A. Ovsyannikova,b*, Viktor V. Demidovb, Yuli V. Kislinskib, Philippe V. Komissinskia,b, Dag Winklera a Chalmers ... revised date here; accepted date here Abstract The results of electrical and magnetic investigations of epitaxial CaxSr1-xCuO2 ( CSCO ) thin films grown by pulsed laser deposition are presented ... Temperature dependence EPR amplitude for two CSCO films with =0.15 ...

Contents. planet: 5 - Jupiter satellites: J1 - Io : 10, J3 - Ganymede : 15, J4 - Callisto : 6 total number: 31 type: relative dates: 1997-1997 observatory: see observatories list in the relevant article. ... Emelianov N. V., Vashkovjak S. N. (2009) Astrometric results of the observations of the mutual occultations and eclipses of the Galilean satellites of Jupiter in 1997. ... Position angle A in degrees (topocentric for mutual occultation or heliocentric for mutual eclipse) 10. ...

Ground Support of RadioAstron . Control and Tracking Stations . RadioAstron satellite control (command transmission, telemetry, orbit measurements) will be conducted from Evpatoria and Bear Lake control stations. ... Coarse orbit measurements will be carried out from control stations. Each measurement takes ten minutes. ... Orbit measurements at tracking stations give only radial component of spacecraft velocity but the measurements are going continuously during observing sessions. ...

... ASRAS Board Members . ... Site . ... ASRAS Board Positions . ... President - . ... The president has many responsibilities like running monthly meetings, running the monthly board meeting, representing ASRAS at local events like star parties, planetarium events, RMSC events, the monthly newsletter presidents message, etc .. ... The Vice Presidents position is mainly to assist the president and back them up if they cant make a major function like a general meeting or write the newsletter pres message...

ATMoB "Double Star Award " Guidelines Purpose: To promote observing among the membership of the Amateur Telescope Makers of Boston ­ in particular, double, triple, and multiple stars. Introduction: Double, triple, and multiple stars are the "Rodney Dangerfields" of the night sky. ... W hile they can be observed under a variety of sky conditions, double stars ­ especially close ones ­ are best viewed on nights when the seeing is steady. ... The direction from a star to Polaris is north. ...

... 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. ...

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

Stellarium 0.12.3 . ... Classes . ... BigStarCatalogExtension::StarWrapperBase Class Reference abstract . ... getInfoString (const StelCore *core, const InfoStringGroup &flags) const . ... getPositionInfoString (const StelCore *core, const InfoStringGroup &flags) const . ... getJ2000EquatorialPos (const StelCore *core) const =0 . ... getEquinoxEquatorialPos (const StelCore *core) const . ... getJ2000GalacticPos (const StelCore *core) const . ... getSideralPosGeometric (const StelCore *core) const . ...

Aristarch is Copernic of Classic World. ... First Aristarch determined the fact for how many times the Sun was father then the Moon and then he compared the Sun and the Moon with the Earth. ... Only the Moon rotates around the Earth. ... Gipparch suggested that the Sun turned around the Earth steady and in circumference but the Earth is displaced according its centre. ... The orbit point in which the Sun is nearer to the Earth Gipparch called perigee and the most remote one he called apogee . ...