SAI 175 anniversary . ... Moscow University . Search for in SAI Moscow University Search for in Russian astronomical resources . ... SAI Astronomical Databases . ... Browse SAI Software archive(ftp.sai.msu.su) . ASTRONET.RU - Russian Astronomical Network (available in translit also) . ... SAI Supernovae Research Group . ... Department of the Galaxy and Variable Stars (in Russian) . Sternberg Astronomical Institute Seminars . ... All-Russian Astronomical Olympiad (in Russian) . ...

We present far-infrared spectra, ЮЛ = 52-93 ЮМm, obtained with the Spitzer Space Telescope in the spectral energy distribution mode of its MIPS instrument, of a representative sample of the most luminous compact far-infrared sources in the Large Magellanic Cloud (LMC). ... First, we introduce a spectral classification scheme. ... The efficiency of photoelectric heating in the interfaces of ionized gas and molecular clouds is estimated at 0.1%-0.3%. ...

... Donate to Support Science Literacy . ... 2016 Annual Awards . The ASP is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach. ... Shop the AstroShop . ... The Astronomical Society of the Pacific (ASP) is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach.. ...

... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Australia Telescope 20GHz Survey . ... Bright prospects: Comparing the H Survey with large-scale radio continuum emission . ... Prospects for comparisons between the AAO/UKST H \ survey and large-scale radio continuum emission are considered, with particular reference to the recently completed Parkes 2.4-GHz survey of the southern Galactic Plane. ...

... Астрономическая неделя с 11 по 17 апреля 2016 года . ... Александр Козловский . ... День открытых дверей на Пущинской РадиоАстрономической Обсерватории 09 апреля 2016 года . ... Полное солнечное затмение 9 марта 2016 года . ... Полное лунное затмение 28 сентября 2015 года . ... Затмение, которое произойдет 28 сентября 2015 года, является повторением через сарос (цикл повторений затмений равный 6585 дней или 18 лет 11 дней) полного лунного затмения от 16 сентября 1997 года с максимальной фазой 1,20.....

. Pulkovo Observatory of Russian Academy of Sciences is situated . near Saint-Petersburg. It was founded in 1839. 196140, Saint-Petersburg, Pulkovskoye chaussee 65/1 . English version . Russian version . This page has been accessed times since May 1, 1999.

Next: Methods for Structuring and Searching Very Large Catalogs . ... We have explored two automated classification methods: supervised classification using Artificial Neural Networks (ANN) and unsupervised classification using Self Organized Maps (SOM). These methods are used to classify IUE low-dispersion spectra of normal stars with spectral types ranging from O3 to G5. This paper describes the application of automated methods to the problem of the classification of stellar spectra. ...

... Avec le plus simple des ?quipements, vous aussi pouvez effectuer des mesures de masse semblables ? ... Des objets lourds et compacts dont la masse doit ?tre mesur?e. Je me suis servi de deux gros boulons, pesant 50 et 120 grammes. Une montre capable de compter les secondes . De petits poids. (j'ai employ? des poids de cuisine mesurant 0-500 grammes) . ... Avec une balance , cherchez les poids m 1 et m 2 des deux objets, et de m?me le poids m 0 de la pince utilis?e pour les maintenir. ...

NAUTICAL ASTRONOMICAL ALMANAC for 2005-2006 (in Russian) . ... The Institute of Applied Astronomy of the Russian Academy of Sciences submits the next issue of тАЬThe Nautical Astronomical Almanac for the years 2005-2006тАЭ (NAA-2) biennial. NAA-2 is based on тАЬ The Nautical Astronomical Yearbook тАЭ (NAY) also prepared by IAA RAS. ... The structure of тАЬThe Nautical Astronomical Almanac for the years 2005-2006тАЭ has not undergone essential changes in comparison with the previous issue of NAA-2. ...

... October 8, 15:00 15:40 . ... PDF [7.2б MB] October 8, 15:40 16:10 . ... The sky brightness, atmospheric extinction, cloud coverage and auroral appearance are obtained from these images. ... Aurorae are identified by comparing the observed sky brightness to the sky brightness expected from this model. ... The identification of few potential sites for future's larger facility require several instruments, measuring various site characterizing parameters. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... We have obtained imaging polarimetry of the comet C/2013 R1 (Lovejoy) with 2-Channel-Focal-Reducer Rozhen instrument at 2m RitcheyтАУChr tienтАУCoud telescope of the Bulgarian National Astronomical Observatory Rozhen in two dust continuum filters covering wavelength intervals clear from molecular emissions and centred at 4430 in blue filter and at 6840 in red filter. ...

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. ...

... В четверг, 14 апреля 2016 г., состоится семинар кафедры астрофизики. Повестка дня . ... Начало в 11 час.15 мин. Ауд. ... В четверг, 31 марта 2016 г., состоится семинар кафедры астрофизики . ... В четверг, 24 марта 2016 г. , состоится семинар кафедры. ... В четверг, 17 марта 2016 г. , состоится заседание кафедры. ... ОСП НИИ ПММ Национального исследовательского Томского государственного университета) . ... Copyright 2016 Астрономия в Санкт-Петербургском университете . ...

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Travel to E-ELT Armazones . ... Green ESO . ... Survey Telescopes . ... Star Clusters . ... Stars@ESO . ... ESO Science Newsletter . ... ESO 3.6-metre telescope . ... MPG/ESO 2.2-metre telescope . ... These publication statistics give an idea of how much scientific work gets done with data from the individual observatories, but does not address the impact of this science. ...

... The sample of the Local Volume galaxies (distance smaller than 10 Mpc) gives a unique opportunity to study the properties of galaxies including the weakest objects: the absolute magnitude M B -10 and the virial mass M vir 10 9 M x263C;. ... Luminosity function of the Local Volume galaxies. ... The luminosity functions for galaxies are presented: red dashed line - from the 2dFGRS survey (Norberg et al. 2002); blue dash-dotted line - from the SDSS survey (Blanton et al. ...

... Automated Spectral Classification Using Neural Networks E. F. Vieira Laboratorio de AstrofТРsica Espacial y FТРsica Fundamental P.O.Box 50727, 28080 Madrid, Spain, Email: efv@lae#.esa.es J. D. Ponz GSED/ESA, Villafranca P.O.Box 50727, 28080 Madrid, Spain, Email: jdp@vilspa.esa.es Abstract. We have explored two automated classification methods: supervised classification using Artificial Neural Networks (ANN) and unн supervised classification using Self Organized Maps (SOM). ...

Next: Quantum Efficiency Correction (a.k.a. Up: ROSAT HRI Recipes Previous: Appearance of new HRI . The mean pulse height analyzer channel (PHA) of a spectral distribution will vary depending on its location on the detector. Below is a method to compare observed data with that of preflight calibration measurements. ... For temporal gain variations, see The HRI Calbration Report . ... Retrieve the gain maps (mean PHA) from anonymous ftp at SAO. ... But don't forget temporal gain variations!] ...

Jeff mock supplied 6 different types of filters to use with the high resolution mode of the mock spectrometer. ... Plots were made of the time domain voltage response as well as the frequency domain power response. A decimation of 10 was used for the filter decimation. this gave a filter length of 80 coeff. The plots compare the filter shapes for these filter types (.ps) ( .pdf ) . ... Each color is a different filter type . middle: spectral density reponse for each filter . ...

We have designed the laboratory model of static Fourier spectrometer for onboard usage for spectral study of atmosphere and ionosphere. The gain of model is to simulate onboard FS which will not have any moving elements (all its optical elements will be mounted at fused quartz monolithic construction), to compare experimental results with theoretical estimations and to measure MTF of CCD array. ... This fact connected with low frequency response of CCD array due to small format of it. ...

Next: How to get Up: Introduction Previous: Introduction . ... However, we cannot make all our observations at the same time, or at the same place in the sky. ... To do this, we must distribute the observations so that the main independent variables (such as airmass, star color, and instrumental temperature) are uncorrelated with each other. ... As some (like temperature) are inherently likely to be correlated with time, it is doubly important that others (like airmass) be uncorrelated. ...