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1. Asteroids National Astronomy and Ionosphere Center (Arecibo Observatory)
NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Planetary Radar . ... Asteroids . ... Radar imaging of near-Earth asteroids can provide dramatic images with resolutions down to 8 m, comparable to the images obtained by the Galileo and NEAR-Shoemaker spacecraft. ... Asteroid 2001 GQ2 was imaged by the Arecibo radar system during April, 2001 by M. Nolan. ... These radar images of main-belt asteroid 216 Kleopatra were obtained in November, 1999, about one hour apart (Ostro et al 2000, Science). ...
[ Сохраненная копия ]  Ссылки http://www.naic.edu/general/index.php?option=com_content&view=article&id=144&Itemid=474 -- 19.2 Кб -- 13.04.2016
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2. http://www.gao.spb.ru/english/as/j2014/presentations/heinkelmann_swg3.pdf
... Status of the numerical solutions and validation 2. ... Coupling of "solid" Earth components, e.g. core ­ mantle (Dehant et al.) ... Consistent relativistic formulation of Earth rotation (Gerlach, Klioner, Soffel) Status of the numerical solutions - 2 · The results from numerical solutions suffer from ­ Simplified solid Earth models ­ Incomplete Earth system models or neglecting of certain parts or neglecting of certain coupling mechanisms ­ Methodological limitations of computations...
[ Текст ]  Ссылки http://www.gao.spb.ru/english/as/j2014/presentations/heinkelmann_swg3.pdf -- 333.2 Кб -- 28.09.2014
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3. http://www.ipa.nw.ru/conference/2002/sovet/PS/EROSHKIN.PS
... 8, ``Celestial Mechanics'', 2002 High­precision numerical theory of the rigid Earth rotation taking into account the geodetic perturbations G. I. Eroshkin, V. V. Pashkevich Pulkovo Observatory, St. Petersburg, Russia The present investigation is a development of the previous research (Pashke­ vich, 2000). ... As a result, the numerical theory of the rigid Earth rotation is constructed, which is more adequate to the kinematical solution of the semi--analytical theory SMART97 [1]. ...
[ Текст ]  Ссылки http://www.ipa.nw.ru/conference/2002/sovet/PS/EROSHKIN.PS -- 24.9 Кб -- 19.08.2002
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4. amateur astronomy | Astronotes - Part 8
Astronotes Armagh Planetarium's Stellar Blog! ... Posted on July 8, 2011 | 5 Comments In a dark July night sky you can hardly miss Vega, Altair, and Deneb, the three bright stars of the Summer Triangle ? ... Continue Reading.. ... No Comments St. PatrickтАЩs Academy in Dungannon is a school with both an Astronomy Society and its own observatory! ... No Comments Armagh Planetarium kicked off 2011 in style with some amazing astronomy-based events in association with the€а BBC. ...
[ Сохраненная копия ]  Ссылки http://www.armaghplanet.com/blog/tag/amateur-astronomy/page/8 -- 55.5 Кб -- 09.04.2016
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5. http://www.atnf.csiro.au/iau-comm31/pdf/2009_IAUGA_JD6/JD6_1_2_Zharov.pdf
... The coordinate axis of this system fixed with respect to the very distant extragalactic radio sources and thus their expected proper motions should be negligibly small. ... Linear motion with constant velocity z = 1, V = 100 km/s µ 0.01 µas/y 1044+719 (defining) z=1.150, scale = 8.286 kpc/" |µ| (43 ± 2) µas/y, VT 1.2c (apparent) Motion of 1044+719 Motion of the defining source 0014+813 2. ... Catalog of sources must contain both their coordinates and apparent motion terms. ...
[ Текст ]  Ссылки http://www.atnf.csiro.au/iau-comm31/pdf/2009_IAUGA_JD6/JD6_1_2_Zharov.pdf -- 519.0 Кб -- 05.08.2010
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6. What's New
What's New in Views of the Solar System . ... Mars Icosahedraon Added . ... Rotation Earth Movie . Europa Rotation Movie . ... Color Rotation Tethys Movie . Rotation Tethys Movie . ... Rotating Mars Movie . ... Animation: Io Rotation Movie . ... Rotating Moon Animation . ... Animation of Janus, The Rotating Moon of Saturn . ... Two excellent animations of Mars' moons Phobos and Deimos were added on 9/3/97. ... A high-resolution mosaic image of Phobos , a moon of Mars, was added on 7/8/97. ...
[ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/new.htm -- 12.3 Кб -- 15.03.1998
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7. Spherical and Practical Astronomy
Basis of Spherical Trigonometry.Spherical Triangles.Basic Theorems and Formulas. ... Coordinate Systems in Astronomy. ... Influence of Objects Oun Motion and Their Visible Dementions on Indicated Phenomenons. ... Phenomenons which Have an Influence on Visible Coordinates of Stars. ... Precession and Nutation of Earth's Axis.Celestial Poles Motion and Earth's Rotation Irragularity .Influence of These Phenomenons on Visible Coordinates of Objects.Standard Theories of Precession and Nutation. ...
[ Сохраненная копия ]  Ссылки http://space.univ.kiev.ua/courses/sph_pract_astr_e.html -- 3.9 Кб -- 23.02.2005
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8. Asteroid in Jupiter Resonance
... See also: . ... This video was created by Scott Manley. ... This video highlights 2 groups of asteroids that have orbits in resonance with Jupiter. To highlight the motion we rotate the view at the same speed as an idealized version of Jupiter, that is, we keep the rotation constant as if the planet was on a circular orbit. ... Asteroids which are in this resonance have their orbital eccentricities increase quickly until their orbits cross those of other planets and they suffer a close encounter. ...
[ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/neos/JupiterResonance/indexflash.html -- 7.1 Кб -- 15.02.2011
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9. The Celestial Sphere--lesson plan #1a
An introduction to the celestial sphere, describing its . apparent rotation and the special role of the pole star. ... This lesson plan supplements the web page listed below. Originally named "The sky above us" , it was split into two parts, each of which now has a lesson plan. ... Celestial sphere, constellation, zodiac, celestial pole, the Pole Star ("Polaris"), celestial equator, rotation of the Earth, planets [theodolite, equatorial axis]. ... What makes the Pole Star special? ...
[ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/mirrors/stern/stargaze/Lcelsph.htm -- 11.0 Кб -- 12.04.2005
[ Сохраненная копия ]  Ссылки http://www.cosmos.ru/mirrors/stern/stargaze/Lcelsph.htm -- 11.0 Кб -- 22.12.2007
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10. No Shift, 180 Degree Rotation
... No Shift, 180 Degree Rotation . ... HST Overview . Overview . ... All other filters use the values for F606W. This series of tests is designed to test how the IDCTAB deals with a large (180 ) rotation. ... OMEGACEN . ... 0.000000 . ... Vec Mag RMS . Vec Mag Mean . Vec Mag Median . Vec Mag Max . Vec Mag Min . ... NOTE: In the above table, shift values are in units of drizzled image pixels, rotation values are in units of degrees, and scale values are dimensionless multipliers. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/wfc3/analysis/idctab_testing/uvis/0shift_180rot -- 32.5 Кб -- 11.04.2016
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