ЗАО "Звездный Альманах" представляет! Уникальная услуга - купить звезду в подарок! ... Звезда Дня рождения . ... Звезда Любви . ... Купить звезду в подарок на день рождения, на первый взгляд, весьма необычное желание, однако с компанией Звездный Альманах оно вполне осуществимо. ... Особенности Звезды ?Дня рождения? (подарок на торжество) заключаются в том, что координаты звезды наиболее точно соответствуют ее местоположению в зодиакальном созвездии на число и месяц рождения человека ? ...

... разработка теории и методов расчета лучевых дифференциалов первого, второго и третьего порядков в градиентных оптических системах; . ... разработка методов расчета геометрических аберраций второго и третьего порядка осесимметричных оптических систем, содержащих асферические поверхности и градиентные среды типа "псевдоаксикон"; . ... получены формулы для расчета смещения изображения и геометрических аберраций второго порядка в градиентных оптических системах с малыми нарушениями осевой симметрии; . ...

home education > activities . ... This activity is mostly just calculations, but students will enjoy figuring out the angle by which an asteroid headed for Earth needs to be deflected to miss our planet.[h] . ... Students are encouraged to play out the motion and positions of a comet and the Earth, relative to the Sun. ... Cute little activity in which younger students "interview" the Sun as a way of encouraging them to research various topics on the Stanford Solar Center web site. [e] . ...

... Visited 4823 times - Selected 52 months ago . ... Visited 7706 times - Selected 51 months ago . ... Visited 3897 times - Selected 52 months ago . ... Visited 1686 times - Selected 51 months ago . ... Visited 6533 times - Selected 51 months ago . ... Visited 6401 times - Selected 51 months ago . ... Visited 4214 times - Selected 51 months ago . ... Visited 6013 times - Selected 51 months ago . ... Visited 4718 times - Selected 51 months ago . ... Visited 4570 times - Selected 51 months ago . ...

... Numerical simulations of highly turbulent flows in astrophysics benefit greatly from recent advances in high performance computing. ... Figure: Perspective full domain view of vertical velocity at one instant in time in 3-D turbulent convection simulation ( ). ... Original PostScript figure (1496 kB) . ... Figure: Phase diagram of pointwise convective flux as function of the vertical velocity in a horizontal plane near midlayer for turbulent convection with , and , with . ...

... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... solar system . ... Year of Pluto . ... The Solar Dynamics Observatory completes third year eyeing the Sun . ... One of the highlights of NASA's Solar Dynamics Observatory (SDO) during its third year in space: observations of Venus' transit across the Sun. ... Therefore, SDO's third year brought two research communities together: comet researchers who can use solar observations and solar scientists who can use comet observations to study the Sun. ...

ASTR 3007 - STELLAR PULSATION COMPONENT P e ter W o o d Research School of Astronomy & Astrophysics TOPICS COVERED · Main types of variable stars · Linear adiabatic pulsation theory => periods of pulsation · Linear non-adiabatic pulsation theory => stability - will a star pulsate? ... Here we see Cepheids and long-period variables (LPVs) (movies from Hartman: http://cfa-www.harvard.edu/%7Ejhartman/) WHY STUDY VARIABLE STARS? ... What could cause the pulsation period to vary from star to star? ...

Stars and Planets A Report to the National Committee for Astronomy for the Australian Astronomy Decadal Plan 2006-2015 By Working Group 2.3 September 2005 1 Introduction The Australian National Committee of Astronomy (NCA) has charged the Working Group for Stars and Planets with identifying the most important research topics and the required resources in this area for input to the Australian Astronomy Decadal Review for 2006-2015. ... Australia has a long and proud tradition in stellar astrophysics. ...

White Paper on the Future of Radar Astronomy at Arecibo D. B. Campbell and J. L. Margot (Cornell University) and M. C. Nolan (National Astronomy and Ionosphere Center) With spacecraft missions providing more and more detailed information about solar system bodies, the opportunities for Earth based telescopes to make truly significant contributions to our knowledge of the solar system are becoming increasingly limited. ... Near Earth Asteroid (NEA) astrometry and characterization 2. ...

Journal of the Amateur Astronomers Association of New York December 2009 Volume 57 Number 12, ISSN 0146-7662 EYEPIECE tational repulsion." ... The Moon is a fingernail crescent the morning of December 14 and shouldn't interfere with the Geminids, one of the year's most reliable meteor showers. ... Decembers Constellations. ... The group of sunspots spanned approximately one-eighth of the width of the solar disk. ... The Moon occulted parts of the Pleaides star cluster on the night of November 3-4. ...