Authors: V.A. Marsakov , Yu.G. Shevelev , . ... Systematic effects of random errors in distances and reddening, metallicity and luminosity indices of F stars from catalogues with photometry are investigated. ... Исследуется систематические эффекты случайных ошибок в определениях расстояний, покраснений, индексов металличности в светимости F -звезд из каталогов с -фотометрией. ...

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• Doclad, figures
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... Bad Astronomy . ... Mad Science . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... How did early astronomers determine the distance form earth to the sun, and what method is used today to determine distances in space? ... Since Huygens knew the Sun-Venus-Earth angle (from the phases), and he could directly measure the Sun-Earth-Venus angle (simply by measuring Venus' apparent distance from the Sun on the sky) all he needed was to know the distance from Earth to Venus. ...

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• Phil Plait's Bad Astronomy: Misconceptions
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• Phil Plait's Bad Astronomy: Bitesize Astronomy

Astronotes Armagh Planetarium's Stellar Blog! ... Planets . ... The newly discovered planet orbits about six million km from the star Alpha Centauri B, much closer than Mercury is to the Sun in our Solar System.The planet has a mass of a little more than that of the Earth making it one of the smallest exoplanets known.Without a doubt it is a rocky planet , with a barren and cratered surface, on its sunlit side the surface €аmay reach a temperature of about 1200C.Exoplanets are not ...

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... Sun images . ... Active areas . January : 2013 . ... The following regions with sunspots can be now observed on the Sun's surface . ... Sunspots Location on the Sun . ... Hsx . ... Alpha . ... 0030 . ... Coordinates and other characteristics of active regions are issued for January 06, 2013 00:31 UT The following H-alpha plages without spots can be currently observed on the Sun's surface . ... Coordinates and other characteristics of active regions are issued for January 06, 2013 00:31 UT . ...

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• Sunspots and active regions October 28, 2013
• Sunspots and active regions January 05, 2013
• Sunspots and active regions January 05, 2014

In this talk we will show the global well-posedness of the three dimensional Navier-Stokes-alpha model (also known as a viscous Camassa-Holm equations). ... We will present semi-rigorous arguments showing that up to a certain wave number, in the inertial range, the translational energy power spectrum obeys the Kolmogorov power law for the energy decay of the three dimensional turbulent flow. ... This observation makes the Navier-Stokes-alpha model more computable than the Navier-Stokes equations. ...

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• Representation theory and noncomutative harmonic analysis
• IUM10 conference: V.A.Vassiliev

Альтернативный форум . Scientific.ru Все форумы . ... Time (@) - 13.04.2007 09:15 . Re: Anisotropy in the Hubble constant as observed in the HST Extragalactic Distance Scale Key Project results . x203a; x203a; x203a; в ответ на: Anisotropy in the Hubble constant as observed in the HST Extragalactic Distance Scale Key Project results Котофеич . ... Re: Anisotropy in the Hubble constant as observed in the HST Extragalactic Distance Scale Key Project results Котофеич, 13.04.2007 13:37 . ...

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• Обзоры hep-ex: тематический рубрикатор

Красная планета и огненное Солнце . КОСМИЧЕСКАЯ ГАЛЛЕРЕЯ: МАРС и СОЛНЦЕ . Исследование Солнечной Системы - Космическая Галерея . ... На главную . Исследование Солнечной Системы - Любительские наблюдения Солнце . ... Любительские наблюдения Солнце . ... Телескоп с hydrogen-alpha фильтром, астроном любитель . ... 2005 - , Проект "Исследование Солнечной системы" . ...

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Estimates for the Set-theoretic Distance between Orbits of Celestial Bodies . ... It is reasonable to use preliminary simple criteria for the proximity to intersection based on estimates of set-theoretic distance ( , 0 ) between orbits , 0 of celestial bodies , 0 . ... We describe here two simple criteria and one more complicated one. ... The third one requires calculation of the distance itself and it amounts to solving a trigonometric equation of the 8-th degree. ...

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• AY2016 (contents)
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19 декабря 2002 . News . A.A. Shatskiy . News from TEXAS (Florence, 9-13 December 2002) . A.A. Kirillov (Institute for Applied Mathematics, Nizhny Novgorod) . ... 10 октября 2002 . ... V.N. Lukash . ... 30 сентября 2002 . ... The cosmological term as a source of mass . ... 11 июля 2002 . ... 18 апреля 2002 . ... 28 марта 2002 . V.N. Lukash, E.V. Mikheeva . News from the conference "Cosmological model" . ... News from the conference "The gamma-ray Universe" . ... A.A. Kirillov . ...

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... Up: Description of program searchdup Previous: Program use . Input records are ordered per date of observation, and the list of known (observed) sources is cleared. Each record is compared in position to all the known sources. If the sky distance is less or equal to the specified one, the record is added to the list of observations for that source. If no known sources are within the specified radius, a new source is created, with the coordinates of the observation record. ...

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• Sun, Planet and Satellite Data
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• Jupiter's Moon Thebe

... Space flight . ... Simulators . ... Space camp . Space Hotel . ... Virtual reality-based stand for ISS crew training is used for cosmonauts pre-training preparation at different stages of training for the space flight. ... At present cosmonauts and astronauts can work both with the SM and FGB images independently and having them in mated state. ... Info: Industry news On-line Data Company ATLAS news Events We in press Contact . Copyright 2000-2016 ATLAS Aerospace . ...

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... XIX IAO . Group Alpha . Hyungseo Ahn (Korea) . ... Group Beta . ... Kirill Grishin (Russia) . ... Hyungseo Ahn (Korea) - for the best result in group Alpha . Edgar Vardanyan (Armenia) - for the best result in group Alpha . Ivan Uteshev (Russia) - for the the best result in group Beta . Athikom Wanichkul (Thailand) - for the best result in the theoretical round in group Alpha . ... Dr. Michael G. Gavrilov, Founding Chairman of the International Astronomy Olympiad, . ...

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• The XIX International Astronomy Olympiad, ages table
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... This method has no equal as of its versatility and short observation times. ... First observations were made on RATAN-600 with a unique MARS-3 16-channel (32 inputs) Matrix Radiometric System that has no analogue in Russian radio astronomy. ... Centre for Analysis of Multiwave Observations Created on RATAN-600. An on-line processing centre for analysis of multiwave radio observations of the Sun on RATAN-600 was created in the St.Petersburg Branch of SAO RAS, see http://www.spbf.sao.ru/prognoz/ . ...

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STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . LX850 Series . ... Meade Series 6000 ED Triplet APO refractors compete head-to-head with the world's premium APOs at a fraction of the cost. ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... Coronado€о Solar . ... H-Alpha Filters . ... Coronado Accessories . ... Dealer Locator . ...

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... Mars is the fourth from the Sun big planet of the Solar system. ... Once a 15 - 17 years occures so-called the great opposition when the planets come nearer about 56 billions km. ... The new level of Mars investigation began in 1965 when the spaceships were used to fly round the Mars and from 1971 landed on the planet. ... The investigations of Mars showes the traces of vulcanization on this planet: the splits and rawins sometimes hundred kilometers long. ... Mars's atmosphere and the water. ...

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• antichnoste
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THE ARGUMENT AGAINST LONG EXTRAGALACTIC DISTANCE SCALE Gaseous discs of S0 -- Sd galaxies appears to be gravitationally stable or close to stability. Dependence of the gravitational stability parameter of gaseous disc $M_g/M_c$ upon the color index $(B-V)^0_T$ which reflects a relative number of young stars, is found. Here $M_g$ is total mass of gas in a galaxy, $M_c$ - mass of gas which corresponds to marginal stability of gaseous disc at distances from center. ...

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• http://comet.sai.msu.ru/~dmbiz/abst/3-a
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... 03.32 AM - the first impulse is performed using the Progress M1-5 eight thrusters to construct the pre-descent orbit. ... maximal distance from earth surface - 219 km . minimal distance from earth surface - 188 km . ... 05.00.24 AM - the second impulse is performed using the Progress M1-5 eight thrusters to construct the pre- descent orbit. ... 08.08 AM - the final third breaking impulse is performed using a combination of the Progress M1-5 main engine and eight thrusters to deorbit Mir OC. ...

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Apollo 15 . ... 1971) --- Astronaut James B. Irwin, lunar module pilot, walks away from the Lunar Roving Vehicle (LRV) during the third Apollo 15 lunar surface extravehicular activity (EVA) at the Hadley-Apennine landing site. The LRV is parked a short distance from the rim of Hadley Rille. ... While astronauts Scott and Irwin descended in the Lunar Module (LM) to explore the moon, astronaut Alfred M. Worden, command module pilot, remained with the Command and Service Module (CSM) in lunar orbit. ...

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... ARTICLE: The Adventurous Search For The Astronomical Unit . ... Kepler himself had suggested to use the rare occasions of Venus transiting (crossing) the solar disk to measure our distance to the planet. ... Due to the orbital inclination of Venus against the ecliptic of 3.5°, a Venus transit is so rare that it happens only at intervals of 121.5 years, 8 years, 105.5 years, 8 years and so on. ... Crabtree witnessing the transit of Venus 1639 . ... Transits of Venus - The Quest for the Solar Parallax...

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Physical limit to variability timescale 1 1 2 The central engine can change its state in a time Rg /c Rg ­ Schwarzschild radius The faster blob catches up with the slower one at the distance Lin Lsh = c 2 2 Lin 1 v2 - v1 L in ~ R g 2 1 L sh The minimum apparent duration of the light burst (at = 0): Lsh Rg 2 2 c c Geometrical implications Instantaneous and synchronous (in the lab frame) release of energy by the sho ck results in ...

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• http://hea.iki.rssi.ru/ru/Posters/INTEGRAL_2007_anisotropy.pdf
• RTT150 Technical Description