... Printed in U.S.A. NATURE OF NUCLEAR RINGS IN UNBARRED GALAXIES : NGC 7742 AND NGC 7217 O. K. Sil'chenko and A. V. Moiseev Special Astrophysical Observatory, Nizhnij Arkhyz 369167, Russia; moisav@sao.ru Received 2005 ... Isaac Newton Institute of Chile, Moscow Branch, Moscow 119992, Russia; olga@sai.msu.su ABSTRACT We have studied an unbarred Sb galaxy with a nuclear star-forming ring, NGC ... 1 7217, Pos. ... Left: Stellar velocity dispersion map for NGC 7217 according to the SAURON...

... M. Makarov Yuzhny Machine-Building Plant (Yuzhmash), Production Association . Pavlograd Mechanical Plant, State Company . Dnipropetrovsk State Design Institute . Ukrainian Engineering Technology Research Institute, Public Company . ... State Research and Engineering Center for Space Technique Certification . Radio Measurement Research Institute, Public Company . ... Kurs Research and Production Complex, Public Company . ... Lviv Center NSAU-NASU Space Research Institute . ...

MAIN PAGE . ... LINKS . ... AAL Members Sites . ... Amateur Astronomy . ... Mars Missions . Observatories Telescopes . ... astronomylinks.com. - astronomy and space links, shortcuts, favorites and bookmarks . ... Mel Bartels' Homepage about Amateur Telescope Making and a lot of interesting links (thx to Hugues Laroche for the link!) ... STEREO (Solar TErrestrial RElations Observatory) consists of two space-based observatories - one ahead of Earth in its orbit, the other trailing behind . ...

... A clock is a tool for the time counting. The stable repeating processes are used in clocks. ... The first timepieces were sand glasses; in the 2nd thousand years B.C. there occured water clocks; the first mentions about mechanical timepieces related to the end of the 6th century; the modern mechanical timepieces are created by H. Huigens in 1657; in 70th years of the 20th century there were widespread the electronic quartz watches with numeric indication, for example on the liquid chips. ...

... Space research, space communication including TV and radio communication with using satellite systems, Earth and ecological monitoring, the use of satellite, navigation and topogeodesic systems, manned missions, material production in space and lots of other operations could be related to space activity. ... A special 5-year program was developed involving regular Shuttle missions with join crews. ... БИК 2-3 system and "Symbol D" system telemetry data are used to control the Station; . ...

... The author of the cover picture is Vasilisa Verkhodanova. The picture symbolizes our perception of the world. The modified emblem of the SAO unifying the 6-m optical telescope and the raditelescope RATAN-600 of SAO RAS is placed in the center of the radio galaxy isophotes. From the one hand, we can investigate the properties of radio galaxies with these (and other) telescopes, and try to study physical processes providing their activity. ...

... What's new . ... The new version of the General Catalogue of Variable Stars (GCVS4.2) revised taking into account the new data accumulated since the 4th GCVS edition for the constellations: Canis Minor, Capricornus The new version of the GCVS ! ... The new version of the General Catalogue of Variable Stars (GCVS4.2) revised taking into account the new data accumulated since the 4th GCVS edition for the constellations: Apus, Cancer, Canes Venatici and Canis Major The new version of the GCVS ! ...

... Reports on progress and error are always recorded in the log file of the program. ... UT date of the measurement finish in YYYY-MM-DD format UT time of the measurement finish in hh:mm:ss format Average flux in A aperture Average flux in B aperture Average flux in C aperture Average flux in D aperture Normalized variance of flux in A aperture Normalized variance of flux in B aperture Normalized variance of flux in C aperture Normalized variance of flux in D ...

... part 1 | ... The Basic Stages in Earth's Pre-geological Development . ... After fragments of the Vortex sleeves separated, whirlwinds of second and third orders ("NC" - new micro-vortex) were generated- future planet cores and their satellites - all of them developing independently, governed by the common laws of development of cosmogenic vortexes. ... Our planet's core today is comprised of considerably deteriorated cosmogenic vortex; consequently, the Earth has a moderated magnetic field. ...

These images have been photographed in NPO Lavochkina museum, Moskva kosmicheskaya exhibition, Memorial Museum of Cosmonautics, Orevo museum, Moscow Aviation Institute laboratory, Polytechnical museum. ... Luna-9 lander . ... Luna-16,20,24 return capsules . Lunar return capsule . Luna-16 drill . Luna-16 drill cutaway . Luna-16 drill base . ... Luna-17 . ... Vostok cabin . ... LK engine . Krechet detail . ... VEGA TV platform . ... VEGA lander . ... Mars-3 lander . ...

... ionospheric plasma . Physics of galaxies and stars . Space plasma physics . Radio physics research of irregular media . Theory of wave propagation at irregular plasma . New methods of the ionospheric plasma probing . Ionospheric radio propagation . ... Physics of spiral galaxies . Star formation in galaxies . Self-ordering of the matter in galaxies . ... Kinematics and chemical composition of Galaxy . ... Satellite methods of the ionosphere research . ...

Statistics of sunspot activity . The sunspot indices . ... Visual indices of solar activity . ... n - number of spot groups . A - Waldmeier class of unipolar spot groups without penumbra . B - class of bipolar spot groups without penumbra . C - class of bipolar spot groups with one penumbra pole . D - class of small bipolar spot groups with two penumbra poles . E - class of middle bipolar spot groups with two penumbra poles . ... H - class of unipolar penumbrated spot groups . ...

M obile A stronomical Sy stem of TE lescope- R obots MASTER-II Kislovodsk Lomonosov Moscow State University, Sternberg Astronomical Institute , Moscow Union "Optic" , Kislovodsk Solar Station Latitude = 43 o љ44'.767љN; Longitude = 42 o љ31'.417љE; Altitude = 2067љm MASTERљIIљ(8љsquareљdegress) + MASTERљVWF(VeryљWideљFieldљCameras (FOV=800 square degrees, Timeљresolutionљupљtoљ150љms, with unfiltered m_lim=14m on 5 sec. exposure, and ~10.5m with 0.15 sec) . ... 11h 38m 38.0s , -09d 59m 59s) . ...