Chiaki Kobayashi, Ralph Sutherland How galaxies did form and evolution? - to answer this unsolved problem, we are simulating the formation and evolutionary history of galaxies in the Universe, including star formation, supernovae feedback, and chemical enrichment. Comparing the spacial distribution of elements within galaxies with observations, we will examine fundamental physical processes that drive galaxy formation. ... COALA : Universe Galaxy AGN Star Planet ...

... The experience of determination of the link between radio sources and dynamical reference frames is presented. To obtain this connection we used a series of very long baseline interferometry (VLBI) observations of the spacecraft Phobos-2 and angularly nearby quasars. ... The dynamical reference frame is determined by equator and equinox of these ephemerides. ... References . ... The relative orientation of the radio and dynamical reference frames can be described by a sequence of three rotations . ...

... Уран, его 15 лун и 11 колец . ... Нет, ни левиума, ни планет с высокой радиоактивностью нынешние разведчики космоса - "Пионеры", "Зонды", "Маринеры", "Марсы", "Вояджеры", "Веги" не обнаружили. ... Увы, несмотря на многочисленные ухищрения, рассмотреть поверхность этой планеты-гиганта, почти вчетверо превосходящей по диаметру Землю, так и не удалось. ... К необычным особенностям Урана относится и открытая в 1977 году система колец, состоящих из множества непрозрачных и, по-видимому, очень темных...

... R1898 Date Received: 2004-Oct-15 21:02:41 Technical Page Proposal Type: General Category: Observation Category: Total Time Requested: Prop osal Title: ABSTRACT: Urgent Planetary Radar Solar System 7.5 Hours Radar observations of long-lost asteroid 1937 UB (Hermes) We prop ose to observe asteroid 1937 UB (Hermes), a large (1-2 km) ob ject of considerable historical and dynamical interest. Hermes was recovered to day after eluding astronomers for 66 years since its 1937 discovery. ...

. Next: References Up: RGS_DARKFRAME Previous: Ground calibration Contents . Diagnostic data accumulated in flight could be used to check the validity of darkframe data although the relevance of such a procedure should be considered now that dynamical offets values are calculated from diagnostic data. In any case, changes are expected to be very small. Michael Smith 2011-09-20

... The main task of this Working Group has been to review the state-of-theart knowledge of the Milky Way galaxy, to identify the future challenges, and to propose which tools (in terms of facilities, infrastructures, instruments, science policies) would be needed to successfully tackle and solve the remaining open questions. ... This Working Group has made recommendations that would allow dissecting our backyard laboratory, the Galaxy, even further. ...

... Archives . ... As a part of exploring spatial distribution of particles/objects, not to approximate via Poisson process or Gaussian process (parametric), nor to impose hypotheses such as homogenous, isotropic, or uniform, various nonparametric methods somewhat dragged my attention for data exploration and preliminary analysis. ... This [arXiv] paper, in fact, initiated me to investigate Voronoi Tessellations in astronomy in general. [arxiv/astro-ph:0707.2877] . ... Chandra Blog . ...

... 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; . ...

. A dynamical interplay between Saturn's largest moon, Titan, and its rings is captured in this view from NASA's Cassini spacecraft. NASA/JPL-Caltech/Space Science Institute

... Видимое годовое движение Солнца . ... Чему равна высота точки зенита над горизонтом? ... Эксцентриситет орбиты Цереры равен 0,079, большая ось 5,54 а. е. Чему равно наибольшее расстояние Цереры от Солнца? ... Горизонтальный параллакс Солнца равен 8,8?? ... Горизонтальный параллакс Солнца 8,8??, расстояние от Солнца до Марса 1,5 а. е. Определите линейный радиус Марса, если известно, что во время великого противостояния его угловой радиус составляет 12,5??, а горизонтальный параллакс равен 23,4?? ...

O-C for observatory with code - 046. September, 2004 . Compressed Ephemeris DE200/LE200 -------------- MP Obs Dynamical Time RA (O-C)cosDEC DEC (O-C) h m s " ' " " 4179 046 2004 9 10.858556 21 51 58.693 -0.35 -15 46 13.30 0.26 4179 046 2004 9 10.860276 21 51 58.588 -0.44 -15 46 14.86 0.45 4179 046 2004 9 10.861726 21 51 58.508 -0.41 -15 46 16.33 0.45 Mean of last 3 obs. ... 91042 046 2004 9 10.015486 1 59 29.878 -2.37 +12 30 33.76 0.81 ? ... Mean of last 6 obs. ...

... We describe a parallel code for 3-D structure detection and morphological analysis. The method is based on a multiscale technique, the wavelet transform and on segmentation analysis. ... This paper presents a new parallel code, that allows a rapid structure detection and morphological analysis in a 3-D set of data points. ... Segmentation analysis. ... Our code is based on the programming paradigm MASTER/SLAVE . ... Finally, the morphological analysis is executed by the master. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Alien Life . astronomers . ... Science Fiction . ... We do not know much about MoriartyБЂ™s family other than he had at least two brothers (confusingly one of them was also called James). The young Moriarty received an excellent education and demonstrated a phenomenal aptitude for pure mathematics. ... By the time he was twenty-one he had written A Treatise on the Binomial Theorem , one of the two works he is remembered for today. ...