Pulkovo NEO Page . ... NEA Accuracy Estimation . ... The estimation of accuracy of the current CCD observations of asteroids and comets is constantly performed at Pulkovo Observatory. ... The (O-C) values, so called "Observed" minus "Calculated" positions, characterize numerically the observations of any observatory, both professional and amateur, during a short period (one or several close nights). ... So the (O-C) values for these objects nearly entirely define the errors of observations. ...

... D. J. Burke and J. Patrick Henry . The Astrophysical Journal, submitted. ... S. Brough, W. J. Couch, C. A. Collins, T. Jarrett, D. J. Burke , R. G. Mann . ... D. A. Wake, C. A. Collins, R. C. Nichol, L. R. Jones, D. J. Burke . ... R. Sadat, A. Blanchard, S. C. Vauclair, D. H. Lumb, J. Bartlett, A. K. Romer, J.-P. Bernard, M. Boer, P. Marty, J. Nevalainen, D. J. Burke , C. A. Collins, R. C. Nichol, . ... S. Majerowicz, D. M. Neumann, A. K. Romer, R. C. Nichol, D. J. Burke , C. A. Collins . ...

Title: A New Model of the Gravitational Lens 0957+561 and a Limit on the Hubble Constant . Authors: Norman A. Grogin , Ramesh Narayan (Harvard Univ.) ... Title: ROSAT/PSPC observation of the distant cluster CL0939+472 . ... Title: Interaction in the Bimodal Galaxy Cluster A3528 . ... Title: Cosmological Implications of Galaxy Cluster Evolution . ... Title: Galaxy Cluster Virial Masses and Omega . ... Matches 201 to 222 from a total of 222 matches for the search pattern galaxy cluster . ...

... The weather throughout this year was so extremely favorable that I have been able to observe the Sun clearly on 312 days; however, I counted only 34 groups of sunspots.. From my earlier observations, which I have reported every year in this journal, it appears that there is a certain periodicity in the appearance of sunspots and this theory seems more and more probable from the results of this year.. ... Year . ... Days when no . ... Observation Days . ... 273 . ... 282 . ... 244 . ... 149 . ...

Intricately structured filaments of gas and dust compose the reflection nebula seen around the Pleiades star cluster. These multiwavelength images were presented to the American Astronomical Society meeting in San Antonio, TX on January 16, 1996. Click here for the press release text . ... The Schmidt data were processed further after this photo release; better versions are now available.] Get image: 512x512 (56k) / 1024x1024 (204k) . Pleiades Far-Infrared Heated Dust Emission . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... 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 Mati?иre noire : une observation d?йfie les astronomes . ... A la une . ... En effet, selon les mod?иles th?йoriques, les concentrations de mati?иre noire sont les lieux o?? naissent les galaxies. ... Une mati?иre noire au comportement ordinaire ? ... Etat du ciel . ...

... Many scientific institutions maintain bibliographies of articles published by their scientists and monitor references made to these publications; these figures are often used to evaluate the effectiveness of the institution. ... a) Identification of papers that are based, at least partly, on new data Publications based on observations can be subdivided into two groups: those presenting new, previously unreported data, and those that make use of already published data. ... Published by . ...

... SIGMA - The hard X-ray and soft gamma-ray telescope . ... Sigma observation of the pulsar OAO 1657 - 415: Precise localization at hard X-ray energy and discovery of spin-down // Astrophysical Journal (1991) Mereghetti, S., et al. ... SIGMA observations of the Virgo cluster // Astronomy and Astrophysics (1992) Lebrun, F., et al. ... Discovery of the high energy emission from the transient X-ray pulsar GRS 0834-430 // Astronomy and Astrophysics Supplement Series (1993) Denis, M., et al. ... 2016 IKI...

... Contact A Problem of an estimation of accuracy of the asteroid CCD observations . The Minor Planet Center supported by the Interntional Astronomical Union is the main office for keeping observational data of the small Solar System bodies and their investigations. ... At Pulkovo Observatory we are estimating an accuracy of the CCD asteroid observations obtained by amateurs and professional astronomers all over the World using the MPC database. ...

.

VASYL MYKOLAYOVYCH IVCHENKO . ... ASTRONOMY and SPACE PHYSICS, KIEV UNIVERSITY, KIEV, UKRAINE . EDUCATION 1966-1971 : student, Kiev University, Faculty of Physics, Astronomy Dept., graduated 1971, diploma ? ... Thesis: "Optical observations of the effects of electron beams injections in control space experiments". ... Kiev University. ... Faculty of Physics, Kiev University. ... Kiev, 1995. ... Address : T.Shevchenko Kiev University, Faculty of Physics, Astronomy and Space Physics Dept., ...

... Old World First Asteroid Radar Echo. ... It testifies that 4179 Toutatis is a double object like asteroid 4769 Castalia. ... Interference of Radar Echo from the Binary Asteroid 4179 Toutatis. ... An analysis of the 6-cm radar data revealed quasi-harmonic oscillation of the echo?s ?central? Doppler frequency with a period of about 14 sec and a deviation of about (0.7*B) Hz, where B is the echo bandwidth, which for 4179 Toutatis was equal to 2.1 Hz and 1.9 Hz for 1992 Dec 8 and 9, respectively. ...

... Solar Physics, 1996,168, - v. 145-158. ... Исследования по геомагнетизму.аэрономии и физике Солнца. Новосибирск: АО Наука. - 1996, - вып. 104, - с. 23-48. ... Агалаков Б.В., Зубкова Г.Н., Леденев В.Г., Лубышев Б.И. , Нефедьев В.П., Язев С.А., Кердраон А., Урбарц Х.В. Предвспышечные изменения пятенного и флоккульного источников радиоизлучения и развитие NOAA 5115 23 августа 1988 г. Исследования по геомагнетизму, аэрономии и физике Солнца - Новосибирск: АО Наука, 1996, вып.104, с.113 - 126. ...

... a journal of his thoughts and experiences, some two million words in . ... The boy's sled gets put away in the barn or shed, and there it lies . dormant all summer, like a woodchuck in winter. ... sees a sled, nor a sled a woodchuck, unless it were a prematurely risen . ... Journal, 25 March 1860 . ... Please join us for a pre-meeting dinner discussion at Changsho, 1712 Mass Ave, Cambridge, MA at 6:00pm before the meeting. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

A - Astronomy and Astrophysics . A - Astronomy and Astrophysics Supplement . AJ - Astronomical Journal . ApJ - Astrophysical Journal . ... BAAS - Bulletin American Astronomical Society . CDS IB - CDS Information Bulletin . ... Icar - Icarus, International Journal of Solar System. ... JAD - J. Astronomical Data . ... Royal Astronomical Society . ... PASA - Publications Astronomical Society Australy . PASP - Publications Astronomical Society Pacific . ... E-Mail: marsakov@ip.rsu.ru ...

... Recent Topics . ... Forum . MAO main . Info . East european science journal, . ... В?д: "East European Research Journal" . ... Тема: East european science journal, пр??ем научных статей в но??ый выпуск журнала (РИН?? ... Wschodnioeuropejskie Czasopismo Naukowe (East European Scientific Journal) (Варшава, Польша) . ... East European Scientific Journal) . ... Board Categories MAO main - Info - MAO - news - Flame Technical - Technical Support(Forum)(Техподдержка(Форум)) . ...

Journal of Atmospheric and Solar-Terrestrial Physics Manuscript Draft Manuscript Number: ATP1021 Title: comment on the paper by Dalin , Pertsev and Romejko Significance of lunar impact on noctilucent clouds ( revised version) Article Type: Research Paper Section/Category: Keywords: Noctilucent clouds moon influence mesosphere Manuscript Region of Origin: Abstract: a critical review of the paper by Dalin , ... Reference: Dalin, P.A., N.N. Pertsev, V.A. Romejko. ...

... We have developed an integrated system that performs astronomical observations in Near Infrared bands operating two-dimensional instruments at the Italian National Infrared Facility's ARNICA and LONGSP . ... The user interface is organized as widget-based X11 client. ... 1993; Di Giacomo et al. 1993). ... Moreover, if the interprocess communication interface includes support for networking, the software immediately becomes network distributed software. ... DESQview/X User Guide 1993, Quarterdeck . ...

Progress in science is inversely proportional to the number of journals" . ... PHYSICS JOURNALS . SPIRES-HEP Database Covers more than 415,000 high-energy physics related articles, including journal papers, preprints, e-prints, technical reports, conference papers and theses, received by the SLAC and/or DESY Libraries since 1974. ... Journal of Physics G: Nuclear and Particle Physics . ... Journal of Geometry and Physics (Special Issues) . ... Journal of Nuclear Materials (Special Issues) . ...

... astro-ph . ... Statistical Characterization of the Chandra Source Catalog . ... The first release of the Chandra Source Catalog (CSC) contains ~95,000 X-ray sources in a total area of ~0.75% of the entire sky, using data from ~3,900 separate ACIS observations of a multitude of different types of X-ray sources. ... In addition to these traditional catalog elements, for each X-ray source the CSC includes an extensive set of file-based data products that can be manipulated interactively. ...