... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Right now as I write this, the planet Venus shines brightly in the evening sky, getting higher with each passing day. ... Actually, when astronomers were first able to start measuring properties of Venus, it did look very much like a twin of Earth. ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! Talk about Bad Astronomy on the BA Bulletin Board! ...

EVOLUTION OF GALACTIC DISCS: TWO MODES OF STAR FORMATION ABSTRACT We develop the model of the evolution of surface gas density, stellar density, star formation rates and chemical composition of galactic disc taking into account the gravitational instability of rotating gaseous layer in the scales of several kpc. ... In the model we took into account the gas return from evolved stars, a radial movement of the gas in a spiral arms and accretion of the gas into the galactic disc. ...

... BOT OF M2 CONE TOP OF M3 CONE M3 INT. BAF1 M3 INT. BAF2 M3 INT. BAF3 M3 INT. BAF4 M3 INT. BAF5 : Angle in degrees Y-Value Weight 0.000000 0.500000 0.050000 1.000000 0.075000 2.000000 0.090000 0.500000 0.099500 0.500000 VCX 0.000000 0.000000 0.000000 0.000000 0.000000 VCY 0.000000 0.000000 0.000000 0.000000 0.000000 VAN 0.000000 0.000000 0.000000 0.000000 ...

... IONOSPHERIC DATA IN THE INTERACTIVE SPIDR SYSTEM . ... The Ionosphere The ionosphere is that part of the upper atmosphere where free electrons occur in sufficient density to have an appreciable influence on the propagation of radio frequency electromagnetic waves. ... These regions may be further divided into several regularly occurring layers, such as F1 or F2. ... E Region: The region between about 95 and 150km above the Earth that marks the height of the regular daytime E layer. ...

... Chmyrev V.M., Isaev N.V., Serebryakova O.N., Sorokin V.M., Sobolev Ya.P., 1997. ... Sorokin V.M., Yashchenko A.K., 2000. ... Sorokin V.M., Chmyrev V.M., Yaschenko A.K., 2001. ... Sorokin V.M., Chmyrev V.M., Yaschenko A.K., 2002. ... Sorokin V.M., Chmyrev V.M., Yaschenko A.K., 2003. ... Sorokin V.M., Isaev N.V., Yaschenko A.K, Chmyrev V.M., and Hayakawa M., 2005. ... Sorokin V.M., Yaschenko A.K., Chmyrev V.M., and Hayakawa M., 2005. ... Sorokin V.M., Yaschenko A.K., Chmyrev V.M., Hayakawa M., 2006. ...

OSLO LT V5.4 Optical Software For Layout And Optimization . Articles | ... Has anyone out there tried to raytrace a telescope design? ... OSLO LT keeps track of the optical path length each ray travels, so it knows the phase relationship of the light as it travels through the telescope. ... Through the use of OSLO LT, I've been able to refine the optical design of the telescope I'm working on. ... www.astronomy.net . About Astronomy Net | ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Next: Rapidly Rotating Stars Up: Discussion Previous: Relations . ... They attributed this to a mechanism which regulated stellar angular momentum through the accretion disk. ... While some of this may be due to sampling effects, the data seem to indicate that after a star loses its disk, either it continues its slow rotation for a period of time and then a rapid increase in rotation rate commences or spin up does not necessarily follow the loss of the disk. ...

StarShine-3: . ... The satellites are covered by nearly 1000 small, front-surface aluminum mirrors that are machined by technology students in Utah and polished by tens of thousands of students all over the world. ... And this is only small story about it. ... We will be able to measure the angular position of that satellite by observing sunlight flashes from small mirrors mounted on the surface of the satellite, as it passes across the starry sky before sunrise and after sunset.. ... Starshine 3 . ...

... Friday, May, 18, 5 p.m., room 206. ... Friday, April, 27, 5.30 p.m. JOINT MEETING WITH THE SEMINAR OF M.TSFASMAN . V.M.Buchstaber will speak on the so called "(n,s) -- models of Riemann surfaces". ... Friday, April, 13, 5 p.m., room 206. ... Topological classification of Z^m_p actions on surfaces . ... Dessins d'enfants and Riemann surfaces . ... Friday, March, 30, 5 p.m., room 206. ... On Friday, February, 23, 5 p.m., room 206, S.Loktev will go on with his talk "Conformal blocks of the CFT". ...

Surface-layer turbulence measurements with lunar scintillometer Idea of the method Hardware & software Campaigns & results New horizons Andrei Tokovinin NOAO/CTIO Kislovodsk Oct. 2010 1 Turbulence measurement from scintillation of extended sources Moon's angular diameter =0.5 deg Correlated scintillation for b > z z=10m b=0.1m z=100m b=1m z=10km b=100m BI(b) = W(b,z) Cn2(z)dz Weighting functions zW(z) for b=0...0.4m and d=1cm 2 Kislovodsk Oct. ... 2010 12 Paranal: October 14, 2008 Kislovodsk Oct. ...

ПУБЛИКАЦИИ - 2012 год . ... Modeling MHD Shock Wave Propagation Along the Solar Surface, Using Nonlinear Geometrical Acoustics // Energy Storage and Release through the Solar Activity Cycle / Ed. by Christophe M., Nindos A. Berlin: Springer, 2012. ... I. Reconciliation of "EIT Waves", Type II Radio Bursts, and Leading Edges of CMEs // Energy Storage and Release through the Solar Activity Cycle / Ed. by Christophe M., Nindos A. Berlin: Springer, 2012. ... Berlin: Springer, 2012. ... J. 2012. ...

. This is a new popup window - close it when you are done . Submitted by Haldun I. Menali on 06/07/2012 09:32:31 . Getting down to western horizon... More thin clouds moving in front of the setting Sun, and reddening effect due to light traveling through a ticker layer of atmosphere as the Sun goes down. Logon to post a follow-up comment or review comments from others . Copyright (c) Amateur Telescope Makers of Boston, Inc. About Us Contact Us

LUNAR COMPLEX . The L3 system was designed of rocket stages G and D, its Lunar Orbiter (LOK) and rocket stage I, and its lunar vehicle (LK) and rocket stage E, a payload fairing protecting systems from aerodynamic and heat exposure in dense layers of atmosphere that was jettisoned when certain velocity heads have been achieved, as well as an emergency rescue system PU for the Lunar Orbiter descent module escape from the accidental LV. ... Official WEB-site of S.P.Korolev RSC Energia . ...

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 S un Stellar Evolution of Low and High Mass Stars Deaths of Stars Exotic Stars Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic ... Low mass stars live and die differently than high mass stars. ...

... Remote Sensing of Fire Intensity and Burn Severity in Forests of Central Siberia . ... Increasingly sophisticated and comprehensive estimates of burned areas and of active fire areas are being produced using satellite imagery. However, accurate regional estimates of fire intensity, ecosystem fire effects, and fire emissions to the atmosphere require development of accurate remote-sensing based methods for estimating the intensity of active fires and the severity of fire impacts. ...

documentstyle[11pt]{article} \begin{document} SURFACE VRI- PHOTOMETRY AND THE STRUCTURE OF THE "DUSTY" GALAXY NGC 972, by A.V. Zasov, A.C.Moiseev. ... Color distribution in the inner part of the galaxy is very non-homogeneous and asymmetric. ... The map of distribution of $Q_{VRI}$ shows the presence of "blue" (in sence of low $Q_{VRI}$) nucleus and rather "red" inner disk with radius $R\sim 3 kpc$. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Question:What do you need to protect an expensive state-of-the-art robotic vehicle that is far from human reach and about to crash at high speed on a rocky alien surface?Answer:Retrograde rockets, parachutes, airbags, and an aeroshell.These are found in the makeup of a lander module that was used to bring rovers Spirit and Opportunity described by the missionтАЩs director as тАЬrobotic field geologistsтАЭ safely to the Martian surface in 2004. ...

... An astonishingly beautiful and rare solar phenomenon, registered by the TESIS telescopes, has been published on the NASA website in the "Image of the Week" section . The eastern limb of the Sun was lit up as if by fire for almost three days as around ten "blazing" protuberances stretched upwards simultaneously into the solar corona, reaching altitudes of over 100 thousand kilometers. ... The structures above resemble tongues of flame over surface of the Sun. ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit†йs . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil La photo la plus pr†йcise de la surface du Soleil . ... Dans des conditions optimales, le t†йlescope devrait parvenir †а une r†йsolution de 45 km †а la surface du Soleil. ... 28/01/2016 - La c†‡te Est des Etats-Unis comme neige au Soleil . ...

... GCR and SCR are primary cosmic rays. 10-15 years after the discovery of cosmic radiation (1919) there emerged two main avenues of investigation in the physics of cosmic rays (CR): 1) nuclear - elucidation of the origin of elementary particles and nuclear interactions; and 2) astrophysical (space physics) - solution of the problem related to the origin and variations (changes in intensity) of CR. ... Besides, the CR flux in interplanetary space is, strictly speaking, not isotropic. ...