... 85, No. 11, pp. 972985. i The Stellar Population and Evolution of Galaxies of the NGC 80 Group O. K. Silchenko1 and V. L. Afanasiev 1 2 Sternberg Astronomical Institute, Universitetski i pr. ... The bulges of five of the seven galaxies appear to be old, with the average age of the bulge stars being 1015 billion years. Signs of a relatively recent star-formation burst are observed in the small S0 galaxy IC 1548, whose average bulge age is 3 billion years and average core age is 1.5 billion years. ...
... Even though the DoD would ultimately select senior Air Force officials, US Navy oceanographers and Air Weather Service officers as shuttle payload specialists, MSEs would be the first personnel from an American military programme to go into space. ... One Air Force officer, Maj. ... Jacobson was concerned about shuttle launch delays and wanted the MSEs to understand that his mission, i.e., the launch of national security payloads, dwarfed their mission, flights in space by Air Force personnel. ...
... Piotrovich Main Astronomical Observatory, Pulkovo, St. Petersburg, Russia Received May 24, 2006; in final form, July 7, 2006 Abstract--We have used two astrometric methods developed at the Main Astronomical Observatory of the Russian Academy of Sciences--the method of apparent-motion parameters (AMP) and a direct geometrical method (DGM)--to derive the orbit of the star S2 around the Galactic center, and thereby the mass of the supermassive black hole at the Galactic center. ... Relative positions. ...
... Institute for Cosmophysical Research and Aeronomy (IKFIA) (Yakutsk). ... IRE RAN (Moscow). Russian Foundation for Basic Research (Moscow). ... Institute for Remote Environmental Research AEN (Moscow) . ... Russian Federal Research Institute of Fisheries and Oceanography (Moscow) . ... Russian Federal Research Institute of Fishery and Oceanography KamchNIRO. ... Russian Federal Research Institute of Fishery and Oceanography. ... Russian Federal Research Institute of Fishery and Oceanography VNIRO. ...
... Сегодня: 10 апреля 2016 г. ВВС США намерены до 2011 года развернуть новую систему слежения, предназначенную для защиты спутников от ракет потенциального противника и других возможных угроз, сообщает Aviation Week. ... По мнению американских военных экспертов, потеря спутников связи и навигации в результате ракетного нападения может привести к полной дезорганизации вооруженных сил США и стать своего рода "космическим Перл-Харбором". ... Большая часть информации по космическим проектам США засекречена...
... Вступление . ... Fish in Danger . ... Let's use our imagination and think of the apple as the Earth. Let's cut the apple into quarters. ... Three quarters of the Earth's surface is water and only one quarter is land. If we cut the piece representing land in half you will see that only one-half the land or one/eighth of the Earth's surface is habitable. ... Three quarters of the Earth's surface represent water but only one per cent of Earth's water is fresh and drinkable. ...
... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...
This is a progress report on the 2dF QSO Redshift Survey as was presented at the Second Coral Seas Cosmology Meeting on Dunk Island, September 1999. Three talks about the survey were presented at the conference. The others were.... QSO Clustering and Large-Scale Structure , Scott Croom et al . QSO Evolution and the Luminosity Function , B.J. Boyle et al . | << - Meeting Proceedings | Talk Overview - >> | . Robert J. Smith, ">rsmith@mso.anu.edu.au Last modified: Fri Sep 24 11:39:02 EST 1999 .
Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Phase range for plots: -0.5 to 1.0 0.0 to 2.0 0.0 to 1.0 . ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... Two period search methods are currently implemented. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . ...
... Chilingarian, I., Melchior, A.-L., Zolotukhin, I. 2010: Analytical approximations of K -corrections in optical and near-infrared bands , accepted to MNRAS (arXiv:1002.2360) . ... K-Corrections in the optical and near-infrared , Analytical approximations of K-corrections in optical and near-infrared bands , photometric properties of galaxies , K-corrections approximation redshift and one observed colour , transform observed spectral energy distributions (SED) , software to estimate K-corrections , ...
КАЛЕНДАРЬ КОНФЕРЕНЦИЙ First Announcement Workshop Presupernovae, Supernovae and Supernova Remnants Pushchino June 3 -- 7, 1996 The purpose of the Workshop is to give an opportunity for both astronomers and theoretical astrophysicists to meet together for a critical discussion of the hot problems of physics of supernovae and their impact on the surrounding medium from both the points of view --- observational and theoretical. ... Stellar remnants of supernovae (neutron stars, black holes). ...
... Printed in U.S.A. THE MOTIONS OF THE HARD X-RAY SOURCES IN SOLAR FLARES : IMAGES AND STATISTICS Sergey A. Bogachev and Boris V. Somov Astronomical Institute, Moscow State University, Universitetskij Prospekt ... the basis of the Yohkoh Hard X-Ray Telescope ( HXT ) data, we present a statistical study of different types of the hard X-ray ( HXR ) source motions during solar flares ... Type I motion of HXR sources in flares. them, the HXR sources systematically moved during flare. ...
... Printed in the U.S.A. doi:10.1088/0004-637X/691/2/1222 AUTOMATED LASCO CME CATALOG FOR SOLAR CYCLE 23: ARE CMEs SCALE INVARIANT? ... CME RATE DURING CYCLE 23 Figure 2 shows the daily CACTus CME rate for cycle 23 in red, with the International Sunspot Number (e.g., Vanlommel et al. 2004) superimposed in gray as solar cycle reference. ... The CACTus CME speeds Figure 12. ... A comparison of a sample of common events shows that on average the CDAW CME width is wider than the CACTus CME width. ...
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... Solar Data: f.e. X-ray . Night Sky Live . ... Heavens-Above: Sky chart, Satellites, Iridiums and astronomical objects For Moscow For SAO Baksan . ... ESO-MIDAS page . ... Tutorials for Astronomy . ... Asteroid and Comet Hazard . ... Observable Comets: This page lists links to orbital elements and ephemerides of (potentially) observable comets. ... Leonid page - a lot of information for years Comets and Meteor Showers . The American Meteor Society . ... North American Meteor Network Home Page . ...
... Тhis new concept touches our simple lives, yet for those intrigued by the natural sciences, especially experts deeply engaged in the 'eternal' questions of general geology and astronomy, it is all the more fascinating. The problems to be faced by any theory for the formation of the Solar System . Any theory has to account for certain rather tricky facts about the Solar System. These are in addition to the obvious facts that the Sun is at the centre with the planets in orbit around it. ...
... Официальное зеркало Astronomy picture of the day на сервере NASA ?? ... написанным профессиональным астрономом . ... Слухи о странной Вселенной . ... Во-первых, энергия, связанная с лямбда-членом, очень непохожа на другие известные составляющие Вселенной, во-вторых, наблюдения накладывают жесткие ограничения на возможные значения космологической постоянной , и, наконец, для объяснения ранее полученных данных вполне успешно применялись гораздо менее странные космологические модели без лямбда-члена. ...
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