... The RAS Meteorite Collection: State on the 1 st of June, 1999 . ... About the laboratory . ... Find 1749. One mass of 687 kg . ... Fall 09 February 1929. 11 masses totaling 3738 g, the largest is 2128 g . ... Chondrite . ... Find 1986. 3 masses totaling about 25 kg . ... Fall 24 March 1933. 75 masses totaling 3-4 kg . ... Fall 29 July 1935. 5 masses totaling 37.35 kg, the largest is 23 kg . ... Fall 23 May 1938. 4 masses totaling 127.5 g . ... Fall 02 October 1933. 10 masses totaling 3.4 kg . ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... A most promising problem is to investigate the interaction of two VHF powerful radiowave beams in the ionosphere, whose difference frequency is equal to the plasma frequency in some ionospheric area (that is, the difference frequency is taken in the range 1-8 MHz). ... Two-frequency interaction effects are based on radiowave non-linear mixing, which is rather complicated when describing and modelling the experiment. ...

List of publications . ... Moscow University Press. 160 pp. ... Shevchenko V.V. A Lunar Base. Moscow. ... Shevchenko V.V., Chikmachev V.I. Lunar Base - a Project of XXI Century. ... Shevchenko V.V., Pugacheva S.G., Dehktereva K.I. Brightness Characteristics of the Infrared and Visible Radiation of the Lunar Surface. ... Problems of Complex Research of the Moon. ... Solar System Research. ... Baydal G.M., Sizentzev G.A., Sotnikov B.I., Shevchenko V.V. Lunar Base Infrastructure and Lunar Resources. ...

... STELLAR DYNAMICS: FROM CLASSIC TO MODERN . ... Sobolev Astronomical Institute, Saint Petersburg State University, Russia . ... The proposed meeting is being organized by the St.Petersburg State University, assisted by an international Scientific Organizing Committee, and marks the centennial of Professor K.F.Ogorodnikov's birth. ... The conference will be organized by the Sobolev Astronomical Institute of St.Petersburg State University in the building of the Faculty of Mathematics and Mechanics. ...

... What's New? Bad Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... August 8, 2006 . ... A Twofer: two Bad news articles in one day! ... Not-so-sly Fox December 28, 2000 . ... Chevron Corporation's (minor) Bad Astronomy March 23, 2000 . ... Vacuuming Out the Cobwebs September 16, 1999 . ... Through Hubble's Lens October 9, 1998 . ... Sixth Rock from the Sun October 16, 1997 . ... More Bad News related to the Hubble images May 14, 1997 . ... 2008 Phil Plait. ...

... Seminar archive . ... Seminar archive 2014 7 February . ... Сверхъяркие сверхновые и их механизмы излучения (Superluminous Supernovae and their Emission Mechanisms) . ... Случайное блуждание фотонов в релятивистском потоке: приложение к гамма-всплескам (Random walk of photons in relativistic flow and its application to gamma-ray burst) . ... In the relativistic flow, it has different behavior from the one in the non-relativistic flow due to the relativistic beaming effect. ... All seminars: . ...

. September 2011 August 2011 July 2011 June 2011 . May 2011 April 2011 March 2011 February 2011 . January 2011 December 2010 November 2010 October 2010 .

... 25 июля 2000 . ... Почему звезды мерцают . ... Как можно видеть невооруженным глазом , звезды находятся так далеко, что видны нам, как бесконечно малые точки. Однако земная атмосфера неоднородна и различные части воздуха делают различные изображения единичной точечноподобной звезды. Так как атмосфера всегда меняется и перемещается , то число и положение изображений также всегда изменяется и в результате звезда кажется мерцающей . ... А. Сергеев , оформление, 1999, 2000. ...

ABSOLUTE PROPER MOTIONS OF 331 OPEN CLUSTERS . ... The proper motions of stars in the fields of 331 open clusters were taken from Four-Million Star Catalog (4M-catalog) of positions and proper motions (Volchkov et al. ... The absolute proper motions for 21 young open clusters have been derived by comparison of precise relative proper motions of individual stars and their corresponding absolute proper motions. ... Sign of proper motions in RA . ... 0.0001 arcsec/yr . ... rms error in RA proper motion . ...

... VaST is a software tool for finding variable objects on a series of astronomical images. ... VaST performs object detection and aperture photometry using SExtractor on each image, cross-matches lists of detected stars, performs magnitude calibration with respect to the first (reference) image and constructs a lightcurve for each object. ... VaST FITS image viewer ./pgfv . ... Part I" PZP, vol. ... K. V. Sokolovsky, S. A. Korotkiy; "New Variable Stars Discovered by the NMW Survey" PZP, vol. ...