... This is usually defined as the direction pointing toward the center of the primary body. ... NODE: The place where the plane of one orbit crosses the plane of another. ... ORBITAL PLANE: The flat surface that would result if every point on the orbit of a body was connected to the center of its primary. ... PENUMBRA: The edge of the primary body's shadow. ... PERIOD : The time required for one body to orbit the primary body. ... PROBE: A vessel designed to pass and observe an astronomical object. ...

... The Large Magellanic Cloud is a Dwarf Irregular galaxy in orbit around our own Milky Way. It is a large object, several degrees in size, and easily visible to the unaided eye in Southern Hemisphere skies. The LMC is located in the constellation of Doradus at about 5h30m Right Ascension, -68 degrees Declination, and lies at a distance of roughly 50 kiloparsecs (160,000 light years) from Earth. ...

On the front of exoplanet modelling: ! ... Knudson et al.; etc.. ... First applications to our Solar System Planets The standard picture: · · · Internal structure of Jupiter and Saturn based on the three-layer picture Equation of state of Saumon-Chabrier for H/He (semi-analytical) Equations of state for metals ... /SESAME (Los Alamos) (relevant regime P ~ 1 Mbar - 100 Mbar: interpolated between experiments and asymptotic limits in the very high density, fully ionised limit) ...

... The Australian National University] [Department of Physics] [Paul Francis] [Main Roleplay Page] . These exercises are my attempt to adapt the technique of Problem Based Learning to the context of introductory astronomy and astrophysics classes. ... As students grapple with the puzzle, they are forced to learn the subject matter of the course. ... This exercise is designed for 1st year University students with a reasonable high-school background in Maths and Physics. ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... A most promising problem is to investigate the interaction of two VHF powerful radiowave beams in the ionosphere, whose difference frequency is equal to the plasma frequency in some ionospheric area (that is, the difference frequency is taken in the range 1-8 MHz). ... Two-frequency interaction effects are based on radiowave non-linear mixing, which is rather complicated when describing and modelling the experiment. ...

... Jupiter, Saturn and their moons. ... Massive stars use up their fuel much faster - in some cases less than 100 million years. ... Based on how evolution took place on Earth, why is it unlikely that life would exist around massive stars? ... 3.0 Observing - clusters and galaxies Open clusters are formed when a large cloud of galactic gas (up to dozens of light years across) condenses to form dozens or hundreds of stars at once. ... To use the model stand nea the Earth post and look towards the sun. ...

КОСМИЧЕСКИЙ КАЛЕНДАРЬ ЯНВАРЯ 2000 ГОДА . ... Jan 01 - Year 2000 . Jan ?? ... Jan 01 - Asteroid 1996 AX1 Closest Approach To Earth (0.702 AU) . ... Jan 03 - Asteroid 3745 Petaev Closest Approach To Earth (1.862 AU) . ... Jan 05 - Asteroid 1999 VO11 Near-Earth Flyby (0.218 AU) . ... Jan 08 - Comet P/1998 VS24 (LINEAR) Closest Approach To Earth (2.915 AU) . ... Jan 12 -[Image][Dec 02] Asteroid 1999 WA2 Closest Approach To Earth (1.100 AU) . ... Jan 14 - Mercury Occults 53 Sgr (6.9 Magnitude Star) . ...

Class 1 Introduction, Background History of Modern Astronomy The Night Sky, Eclipses and the Seasons Kepler's Laws Newtonian Gravity General Relativity Matter and Light Telescopes Class 2 Solar System Characteristics Formation Exosolar Planets Class 3 Stars The Sun Stellar Evolution of Low and High Mass Stars Deaths of Stars Exotic Stars Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic Evolution ... So far, one planet has been studied by this method. ...

... Volodymyr Kuzkov, Sergii Kuzkov, Zoran Sodnik - Direct measurements of laser light aberration from the ARTEMIS geostationary satellite through thin clouds // arXiv.org - New resalts to paper at Conference ICSOS-2014, Kobe, Japan, May 7-9 (2014), S4-4, [view pdf file] . ... Kuz'kov V., Volovyk D., Kuzkov S., Sodnik Z., Pukha S. - Realization of Laser Experiments with ESA'S Geostationary Satellite ARTEMIS. ... Preparation to Optical Communication Experiments With ARTEMIS Satellite. ... V.P. Kuz`kov. ...

... Asteroid . ... In case you didn't hear about it, which you probably didn't: On Jan. 7, an asteroid 1,000 feet across -- nearly three times the current diameter of Marlon Brando -- barely missed the Earth, which is most likely your planet of residence. ... What if this asteroid had hit the Earth? ... As it happens, the American Astronomical Society was holding a conference in Washington AT THE VERY SAME TIME as the asteroid nearly hit the Earth. ...

... However, in some situations it is advantageous to use an image-preserving fiber optic bundle in place of conventional imaging optics. ... The Coherent Fiber Bundle . ... In order to successfully couple light from an imaging fiber bundle to the CCD, the CCD and fiber bundle must be in very close proximity. ... Besides the transmission losses through a large piece of glass, fiber-optic bundles have a transmission loss due to changes in the fiber diameter as light traverses the bundle. ...

Next: Characteristics of the Up: The Epsilon Aurigae Previous: The Epsilon Aurigae . ... Epsilon Aurig? is an F0 Ia star with an enigmatic companion which partially eclipses the visible star for 2 years every 27.1 years. ... The eclipse light curve has a long, flat minimum (Figure ), implying that the secondary is not appreciably convex. ... We develop hydrostatic models for the Aurig? secondary in Section D.3 and present synthetic eclipse light curves calculated using these models in Section D.4. ...

MAIN PAGE . ... Nova Cygni August 1975! ... 1975/76: Comet West! ... Dr. Richard West (4th from left) & AAL members visiting SES Betzdorf on occasion of our club's 25th anniversary - October 1996 . Comet West Information . ... It was the brightest comet visible from Earth since Comet West in 1976. ... 1997: Comet Hale-Bopp! ... Thus Comet Hale-Bopp never got closer to Earth than Earth gets to the Sun. ... Comet Hale-Bopp JPL Page . ... 1999: Total solar eclipse over Luxembourg! ...

... About meteorites . ... Meteoritic data . Impact Crater Smerdyachee . ... Based on Smerdyachee's depth, near circularity, and its mounded wall, and analysis by N.A. Fillin of nearby Roshal, Russia, the Estonian scientists Yu.V. Krestlane and K.H. Mella proposed in 1987 that Smerdyachee Lake is a meteorite crater. ... In 2002, the Laboratory of Meteoritics of the Vernadsky Institute of Geochemistry and Analytical Chemistry of the Russian Academy of Sciences explored this mysterious lake. ...

... One of this year's largest mass ejections from the Sun's atmosphere was recorded last Sunday by TESIS telescopes aboard the CORONAS-PHOTON satellite ( video - wmv 4.3 MB ). ... Over the course of a week, two gigantic solar prominences were simultaneously ejected from the surface of the Sun. ... Earth will not feel the Sun's influence either. ... The TESIS observatory ї TESIS: www.tesis.lebedev.ru . ... One of this year's largest mass ejections from the Sun's atmosphere (movie WMV, 4.3 MB) . ...

... Comments, Opinions Publications Dnepr Program . Dnepr launch record 17 August 2011. Cluster Launch of Dnepr LV 22 August 2013 KOMPSAT-5 Launch 21 November 2013. Dnepr Cluster Mission 2013 19 June 2014. ... ISC Kosmotras announces signing of a launch contract with T B?TAK Space Technologies Research Institute (T B?TAK UZAY) for injection of RASAT spacecraft - the first Earth observation satellite designed and manufactured in Turkey by Dnepr LV in 2010. ... Dnepr LV Performance . ...

... As then we removed from the Earth, we dived into a sky deeper and deeper. ... We saw immense red-hot spheres, liked suns, in illuminator of our spaceship. ... We saw our Earth, Mars, Mercury, and planets-giants, such as Jupiter, Saturn, Uranus and other. ... Also we saw a comet. ... The planet Upsilon was on our way. ... If we could speak the language of these two peoples, we could explain them what the war did on our home planet "the Earth", how many people were killed because of war conflicts. ...

Venus under the clouds. ... Venus is the second from the Sun and the nearest to the Earth planet of solar system. ... As for Venus, it has the densest atmosphere, the smallest rotation around the axis and the least eccentricity of the orbit Venus is the only planet whose own rotation is opposite it’s rotation around the Sun. ... The radiolocation survey of Venus by the soviet station "Venera - 15" and "Venera - 16" brought out in 1984 in the planets satellite`s orbit shoued the tarces of long walls. ...

... Prof. V.G. Farafonov, chair of Applied Mathematics . ... Prof. V.V. Karjukin . ... Voshchinnikov N.V., Farafonov V.G. (1993) Optical properties of spheroidal particles. ... PDF file ] . ... PostScript file ] . Farafonov V.G., Voshchinnikov N.V., Somsikov V.V. (1996) Light scattering by a core-mantle spheroidal particle. ... Farafonov V.G., Il'in V.B., Prokopjeva M.S. (2003) Light scattering by multilayered particles: a set of methods. ...

... fi vig fi vig tan fi ; for fi ? fi vig ; (1) with fi vig = 2:97873882195 deg. ... The following effects of the LSF are parameterized: ffl all geometrical distortions of the surface of the XRT shells ffl scattering due to reflection of the XRT ffl all geometrical distortions of the surface of the RGA gratings ffl scattering due to reflection of the gratings 1 First, these items are convolved and are parameterized as a function of dispersion angle, resulting in an initial function of an LSF. ...