. To see a Russian version of this page click here . (Senior Researcher. Graduated from Moscow State University (MSU) in 1982, Ph.D. 1986, MSU) . A member of EAS and IAU. Fields of interest: hot massive stars, close binary systems: optical photometric and spectral observations, X-ray observations; ill-posed problems, X-ray astrophysics. My publications (ADS link) . Linux on CLEVO 8750 (old stuff) . Phones/addresses of my university mates graduated in 1982. E-mail: igor@sai.msu.ru .

. Home . Structure of Data . Description . Catalog . Publications . VO . ЮБ 2000 . 23:56:37.5 . ЮД 2000 . +61:24:02 . l . 116.420 . b . -0.776 . diameter . 4.0' . (m - M) 0 . 12.2 0.17 . distance . 2750 220 pc . E(B - V) . 0.49 0.02 . log(t) . 8.2 0.05 . SAO 1-m, BVRI observations (777 measurements) VOTable . 2MASS data VOTable . IPHAS IDR data VOTable . Developed by the Team . Send us your questions or feedback

Электронная библиотека астронома-любителя. ... библиотека . архив RSN . ... Ru.Space.News: . Июль 1998 . ... Дата: 21 июля 1998 (1998-07-21) От: Alexander Bondugin Тема: Today On Galileo - July 19, 1998 Привет всем! ... TODAY ON GALILEO July 19, 1998 The fifth encounter of the Galileo Europa Mission starts late today, seven months after the start of the spacecraft's mission extension. ... The first in the series was the last encounter of Galileo's primary mission. ...

Individual papers from the VSOP Symposium Proceedings, "Astrophysical Phenomena Revealed by Space VLBI", eds H. Hirabayashi, P.G. Edwards and D.W. Murphy (ISAS), can be downloaded as gzipped postscript files by clicking on the links below. ... Multi-Epoch Global+VSOP/HALCA Observations of Virgo A at lambda 6 cm . ... Space-VLBI Observations of the Core-Jet in the Nearby Spiral Galaxy M81 . ... H. Hirabayashi, P.G. Edwards, B.G. Piner et al. ... Pentachromatic VSOP and VLBA Survey of GPS Sources . ...

PENTICTON SOLAR RADIO FLUX VALUES (from SGD Explanation of Data Reports) Daily Solar Flux Values - Penticton -- Daily measurements of the integrated emission from the solar disc at 2800MHz (10.7cm wavelength) have been made by the National Research Council of Canada since 1947. ... The data are tabulated in two forms: the "observed flux" (S), and the "adjusted flux" (Sa). ... The "observed flux" values are useful in ionospheric physics and other terrestrial consequences of solar activity. ...

... Seminar archive . ... Титарчук Л. X-ray spectral index correlations vs mass accretion rate in neutron star and black hole X-ray binaries in their different spectral states. ... vs mass accretion rate as in the case of NS as well in the BH case. In BHs the spectral index should increase and then saturate with mass accretion . ... BH case the index, indeed, correlates and then saturates with mass accretion . rate. Moreover this index-mass accretion rate correlation allows us to estimate . ...

... Наши наблюдения кометы Хейла-Боппа (C/1995 O1). ... Достаточно большая серия наблюдений (более 100 изображений кометы) была выполнена до ноября 1996 года, когда Земля вновь заняла неудобное для наблюдений кометы положение на орбите. ... На серии наших снимков, еще в августе 1996г. отчетливо видны пять газовых струй, бьющих из ядра кометы. ... Вновь приступить к наблюдениям кометы Хейла-Боппа нам удалось только после окончания морозов и сезона ненастной погоды, в марте 1997 года. ... Кометы | ...

... 32, No. 8, pp. 592­603. i Central Regions of the Early-Type Galaxies in the NGC 3169 Group O. K. Sil'chenko1* and V. L. Afanasiev 1 2 Sternberg Astronomical Institute, Universitetskii pr. ... The mean age of the stellar populations in the centers of all three galaxies has been found to be approximately the same, 1 Gyr. ... In contrast, in NGC 3166, there is a metallicity gradient, but the stellar age remains approximately constant up to a distance of 8 from the center. ...

Cosmic Ray laboratory of . ... Neutron Monitor (Cosmic Ray Observations) . is situated in Irkutsk (Russia) . ... Height - location above sea level . ... Height: . ... For recording the CR (Cosmic Rays) neutron component at Irkutsk, . neutron monitor NM-64 is used, which is an installation with 18 two-meter proportional counters filled with BF 3 (boron trifluoride gas) in which the B 10 90 per cent of the total boron. ... The neutron monitor is located at 475m above sea level. ...

Twilight observations with MASS/DIMM B. Safonov Sternberg Astronomical Institute Moscow State University Comprehensive Characterization of Astronomical Sites, 2010 B. Safonov (Moscow State University) Twilight observations with MASS/DIMM SITE 2010 1 / 17 Why observe in twilight with MASS/DIMM? ... ASM includes 3 devices sensitive to background: guider, DIMM and MASS. B. Safonov (Moscow State University) Twilight observations with MASS/DIMM SITE 2010 2 / 17 Background in guider. ...

... Observations . Objects . ... Canis Major . ... Canis Minor . ... Leo . ... Leo Minor . ... Ursa Major . ... Ursa Minor . ... Herschel 2500 . ... Herschel 400 (I) . ... Globular Clusters . ... AL Globular Club . ... AL Planetary Club . ...

... 2001 - present-day Researcher in Theoretical Department of Astro Space Center of Lebedev Physical Institute ot RAS . ... Department Number . ... Astro Space Center . ... arna@lukash.asc.rssi.ru . ... Arkhipova N.A., Komberg B.V., Lukash V.N., Mikheeva E.V., "Population of Cosmic Voids", Astronomy Reports 51, pp 787-796 (2007) . ... Surdin, V.G., Arkhipova, N.A., "Influence of dissipation and dynamical friction on the number of globular clusters in a galaxy", Astronomy Letters, Vol.24, p.343 (1998) ...

... astro-ph . ... We present the goals and preliminary results of an unbiased, near-infrared, narrow-band imaging survey of the First Galactic Quadrant (10deg<l<65deg ; -1.3deg<b<+1.3deg). ... We publish 16 Doppler imaging temperature maps for the years 1994-2002 of the active RS CVn star II Peg. ... Through Doppler imaging we want to study the spot evolution of the star and in particular compare this with previous results showing a cyclic spot behaviour and persistent active longitudes. ...

astro-ph/0311087 Случайность и SDSS: открытие самой большой планетарной туманности (Serendipity and the SDSS: Discovery of the Largest Known Planetary Nebula on the Sky) . Authors: Paul C Hewett et al. astro-ph/0311050 Определение красного смещения для XRF 020903: первое спектроскопическое наблюдение рентгеновского всплеска (A Redshift Determination for XRF 020903: First Spectroscopic Observations of an X-Ray Flash) . ... Authors: John Middleditch . ... Authors: Romeel Dav\'e . ...

... Bad Astronomy . ... Mad Science . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... How did early astronomers determine the distance form earth to the sun, and what method is used today to determine distances in space? ... Since Huygens knew the Sun-Venus-Earth angle (from the phases), and he could directly measure the Sun-Earth-Venus angle (simply by measuring Venus' apparent distance from the Sun on the sky) all he needed was to know the distance from Earth to Venus. ...

... Подписка на рассылку обзоров astro-ph на Subscribe.Ru . ... Astro-ph за первую половину 2003 г." . ... Нейтронные звезды и пульсары . ... Авторы проекта обзоров astro-ph . ... Самые интересные препринты astro-ph января 2003 года по материалам обзоров Архива на сайте Scientiic.Ru " . ... Authors: Paul C Hewett et al. astro-ph/0307223 Скопление галактик, спрятавшееся за М31:наблюдения RX J0046.4+4204 на XMM-Newton (A Cluster of Galaxies hiding behind M31: XMM-Newton observations of RX J0046.4+4204) . ...

... Protoplanetary Disks and the Hunt for the Youngest Exoplanets . ... Thursday, Apr 14, 2011 at 8:00 PM . ... But associating the current exoplanet properties with their formation epoch can be problematic, since the formation process is intimately associated with the physical conditions associated with their birthplaces: the disks of gas and dust that orbit young stars. ... Apr . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

Crater Gassendi . ... I made this drawing was made on the 26th of november 2001. If you compare this one with the previous drawing of Gassendi (below) the differences are clear. ... This drawing was made on the 28th of september 2001. After nearly a full month without observations I had a one hour gap between the thicker clouds. ... This drawing was made on the 29th of august 2001. ... This drawing was made on the 27th of august 2001. ... This drawing was made on the 25th of august 2001. ...

Organisateurs: Michel Balazard (CNRS, Laboratoire Poncelet) , Michael Tsfasman (CNRS, Laboratoire Poncelet, Institut des Probl mes de Transmission de l'Information) , Alexey Zykin (Laboratoire Poncelet, Haute Ecole d'Economie) . ... In the set of all lattices I define subset of principial unstable lattices. ... Comparing this with the measure of all lattices we get some inequality between regulator and discriminant of number field. ... Laboratoire Poncelet . ...

... Spacecraft that will search for planetary systems around 40 million stars and observe the largest explosions in the universe have been chosen as the next two missions in NASA's medium-class Explorer (MIDEX) program. ... The first mission, to be launched in 2003, is the Swift Gamma Ray Burst Explorer, a three-telescope space observatory for studying gamma ray bursts. ... During its three-year mission, Swift will also survey the sky for new black holes and other sources of cosmic gamma rays. ...