A STUDY OF THE FRAGMENT DISPERSAL AND TRAJECTORY OF THE SAYH AL UHAYMIR 001 METEORITE SHOWER. ... We obtained hundreds of GPS find locations, analyzed the fragment distribution, and developed a model of the meteorite's trajectory. ... More than 2670 samples weighing more than 450 kg have been collected. ... Increasing fragment mass along track indicated a flight direction of 233o. The fragments' mass distribution was used to model the meteorite trajectory. ...

The Star called the Sun. The Sun as the star . ... The visible star value . ... Spectrum class . ... 149 597 870 km . ... The Solar energy sourse is the core transformation of the Sun, where temperature is 15 000 000 K. The energy from inside is carried by irradiation and then in the external layer with 0,2 Ra of thikness - by convection. ... The Earth, situating far from the Sun (149 mil km), receives about 2.1017 W of the Solar beam energy (see item "The Solar constant" ). ...

Russian Space Science Internet (RSSI) is a successful result of RSSI Project. ... space oriented organizations; . ... RSSI offers for its members : . ... videoconferences via MBONE Internet protocol (there are 2 tunnels available now through the general IP network: one to NASA Internet, and another to Moscow State University); . ... It is designed so that all organizations connected to the RSSI gain access to the resources of Russian computer networks as well as world wide Internet. ... nic@rssi.ru ...

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 Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic Evolution Large-Scale Structure of the Universe Big Bang Cosmology Why is Pluto no longer a planet? ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... The on-line prediction procedure is based on the Newton interpolation formulae for a uniform distribution of the variable with first, second and third argument powers restrictions (Kurkin V.I. , Polekh N.M., Tchistyakova L.V. MAF operative prognosis for oblique ionosphere sounding// Issledovaniya po geomagnrtismu, aeronomii i phisike Solntsa. ... Prediction MUF calculation for the next 15 minutes; . ...

... SHORT TERM PREDICTION OF POWER SOLAR FLARES FROM SSRT DATA . The algorithm for short term prediction of powerful solar flares, based on SSRT data, includes microwave emission characteristics in total and polarized flux, the structure of active region (AR) magnetic field at the photospheric level, and H a patrol data. ... During this period, 7 AR's crossed the solar disk, in which 20 flares of importance ? ... Data on AR's and magnetic fields were received from the Sayan observatory by teletype. ...

Электронная библиотека астронома-любителя. ... библиотека . архив RSN . ... Ru.Space.News: . Апрель 1998 . ... This is only one of over 20 galaxy lenses now known. ... This, and other new results from the LASCO (Large Angle Spectrometric Coronagraph) instrument on board the European Space Agency/NASA spacecraft SOHO (Solar and Heliospheric Observatory), will be presented at the UK National Astronomy Meeting at the University of St Andrews by Dr Mark Lyons from the University of Birmingham. ...

... The VSOP Symposium proceedings, "Astrophysical Phenomena Revealed by Space VLBI" have been published and have been distributed to participants. ... Following the successful launch of the VLBI Space Observatory Programme (VSOP) satellite HALCA in February 1997 there have been many exciting results from space VLBI observations. ... Also, check the newly revised getting to ISAS page which has links to pictorial "Getting to ISAS from Fuchinobe" and "Getting to the Dai-Ichi Hotel from Fuchinobe" pages! ...

Welcome to K -corrections calculator, simple service allowing one to determine K -corrections of a galaxy, given its redshift and one or more colours. ... K -correction in choose filter.. ... Redshift . Colour choose colour.. Colour value . Calculator . ... calculate spectral energy distributions , K-corrections calculator , GALEX FUV NUV , UKIDSS YJHK , K-corrections of galaxies , spectral based k-corrections , SDSS filter set K-corrections , K correction code IDL , kcorrect IDL C , . ...

MPEC 2010-L25 : 2010 LG14 6/7/10 9:33 AM Printer- friendly version Search MPC/CBAT IAU Minor Planet Center MPC Operations Status Processing (Info) ECS: Accessible Observer Services (NEOs) N N N N N N N EO Services Overview EO Confirmation EO Confirmation (RA order) EO Ratings EO Page EO Observation Planning Aid EOChecker MPEC 2010- L25 : 2010 LG14 The following Minor Planet Electronic Circular may be linked- to from your own Web pages, but must not otherwise be redistributed electronically . ...

... Первая десятка | ... Первая десятка "Русского переплета" Темы дня: . ... PET: A Proton/Electron Telescope for Studies of Magnetospheric, Solar, and Galactic Particles. ... Geosciencies and Remote Sensing, 31, 535, 1993. ... 1 D T distributions, obtained in GAMMA-1, SAMPEX PET, MARIA-2 and ELECTRON experiments (M>4, D L< ± 0.1). Fig.2 D T distribution, obtained on board SAMPEX (M>5, D L< ± 0.05) . ...

The new view on the population of Galactic open clusters A.E.Piskunov1, N.V.Kharchenko2, S.RЖser3, E.Schilbach3, R.-D.Scholz4 1 2 3 4 Institute of Astronomy, Moscow, Russia Main Astronomical ... Observatory, Kiev, Ukraine Astronomisches Rechen-Institut, Heidelberg, Germany Astrophysikalisches Institut Potsdam, Germany What are open clusters and what do they teach us Groups of Population I ... Cluster complexes: OCC-1 = Gould's Belt cluster complex? ...

... Our Galaxy . Milky Way . ... Universe . ... Space Flight . ... Other galaxies are not moving away because they are recoiling in disgust from the Milky Way, but appear to be receding because the Universe is expanding. ... Observers in any galaxy will see every other galaxy as redshifted, so there is nothing special about the Milky Way. ... If the Universe is expanding today, that implies that in the past the galaxies would have been closer together and the Universe was much smaller than it is now. ...

Previous Editions of the M111: . ... Severe Space Weather . ... On Line"! ... Any time you have something you'd like to offer - be it a story of how you first got started in astronomy, a star party you just attended, a telescope you just bought, or your favorite constellation, just drop me a line with the story included and I'll be sure to get it posted! ... You can keep an eye on space weather yourself at the National Weather Service's Space Weather Prediction Center, www.swpc.noaa.gov . ...

J/AstL/vol/page SAI Open Clusters Catalog (Glushkova+, 2009) ================================================================================ Automated search for star clusters in large multiband surveys. ... Color excesses E(B-V), distance moduli and ages were determined for 141 new and 27 known, but poorly studied clusters. We present the Sternberg Astronomical Institute Open Clusters Catalog (SAI OCL Catalog) of coordinates, diameters and main physical parameters of these clusters. ...

Supernova 2005cs in M51 . This page is devoted to information on Supernova 2005cs in NGC 5194 (= M51 ). ... Information on the original web pages for many of these images can be found on the updates and links web pages. Discovered by amateur Wolfgang Kloehr (Germany) [ Translate ]. ... SNWeb has a 2005cs page . ... Sky and Telescope news release on Supernova 2005cs . ... 2005/01/ . ... mirror . W. Kloehr image . ... Joel Nicolas image . ... Wolfgang Kloehr image . ... 2006/01/06.504 . ...

GCVS Variability Types and Distribution Statistics of Designated Variable Stars According to their Types of Variability ======================================================================== I. GCVS Variability Types. ... Amplitudes usually do not exceed 0.1 mag. ... RR Variables of the RR Lyrae type, which are radially-pulsating giant A-F stars having amplitudes from 0.2 to 2 mag in V. Cases of variable light-curve shapes as well as variable periods are known. ... RV Variables of the RV Tauri type. ...

... Local and Regional Coordinators, and OBSERVERS are needed for Friday night's spectacular Aldebaran Occultation and Graze Aldebaran is the brightest star, other than the Sun, that can be occulted by the Moon. ... Use your camcorder (or a borrowed camcorder) to record a strong local television station. ... Encourage other amateur astronomers, and other friends and relatives in the region of visibility to record the occultation with camcorders. ... This event is called an "occultation" by astronomers. ...

... LINKS . ... SPECIAL TOPIC . CONTACT . ... ARTICLE: Venus Transit 2004 . ... AAL's Transit Observation Results . ... Divx video from the AAL observation site. ... a) Visual observation : Only with special eclipse shades ( do not use those ones you still have from the 1999's solar eclipse because it does no more protect you properly ) . ... 1. contact ( transit begins ) : 07:19 53 s with a solar altitude of 15.5 degrees . ... Venus Transit Links: . ... Venus Transit 2004: A Tremendous Success . ...

... Научная панорама ? astro-ph/0612220 Бурый карлик - донор в двойной системе с аккрецией . ... astro-ph/0612220 Бурый карлик - донор в двойной системе с аккрецией (A brown dwarf mass donor in an accreting binary) . ... Похоже, что впервые обнаружена аккрецирующая двойная система, в которой донором является бурый (коричневый) карлик. ... Аккреция идет на белый карлик. Масса донора оценивается примерно в 0.05 солнечных масс. http://xray.sai.msu.ru/~polar/sci_rev/146.html#astro-ph/0612220 . ...