... A nasty dispute between the Strategic Defense Initiative Organization (SDIO) and the space-science community was narrowly averted early this year when SDI officials backed down on a planned launch of a satellite with a Russian-built nuclear reactor on board. ... Early Soviet space reactors orbited for two to three months, and two Soviet Topaz 1 experiments, one for six and one 12 months, created radiation belts that disrupted the operation of scientific satellites. ...

... The bright supernova (hereafter SN) in the galaxy NGC 4527 was first sighted by S. Knight (USA) on April 13.17UT at magnitude ~14.0v. The report of the sighting was subsequently forwarded by phone to the AAVSO. ... SN 1991T. The galaxy NGC 4527 is an Sb(s)II type galaxy with an apparent Blue magnitude of 11.32 (Shapley-Ames, 1981). ... An analysis of this event utilizing visual observations by amateurs, plus a light curve is presented.. ... THE LIGHT CURVE: . ... ISN SN 1991T web page . ...

... 000, 1­13 (2010) Printed 21 September 2011 A (MN L TEX style file v2.2) A universal ultraviolet-optical colour­colour­magnitude relation of galaxies I1gor V. Chilingarian1,2, and Ivan Yu. ... Received 2011 Sep 15; in original form 2011 Feb 6 ABSTRACT The bimodal galaxy distribution in the optical colour­magnitude diagram (CMD) comprises a narrow "red sequence" populated mostly by early-type galaxies and a broad "blue cloud" dominated by star-forming systems. ...

главная . ... аппарат отделения . бюро отделения . ... Главная астрономическая обсерватория . A.G. Kyslakov, V.V. Zaitsev, A.V. Stepanov, S. Urpo. ... Organizations: Institute of Applied Physics, Nizhny Novgorod, Pulkovo Observatory, Metsahovi Radio Observatory, Finland . ... Организации: СПбГУ, ГАО РАН. ... C) 1999-2007 разработка и поддержка: отдел ПСИ НЦЧ РАН ...

... 33, No. 5, pp. 332­339. i Young Nuclei in Dwarf Elliptical Galaxies I. V. Chilingarian1, 1 2 2 ** , O. K. Sil'chenko1, V. L. Afanasiev2 , and Ph. ... In all three galaxies, the luminosity-weighted age of the nuclei (4 Gyr) is considerably younger than that of the population in the outer regions of the galaxies. ... Kinematically decoupled structures associated with a young metal-rich stellar population can be formed precisely through a dissipative merger of gas-rich galaxies several Gyr ago. ...

... Moon Phase below . ... ARTICLE: Why the moon always shows us the same face . ... Before you continue reading, you should know that this was not always the case, i.e. the Moon once was rotating with respect to the Earth, so that on every night a terrestrial observer (if there was one, because this was long, long before mankind appeared on our planet, and even before any major animals had appeared) saw another face of the Moon. ... Figure 1 (not to scale) shows how we can imagine the system Earth-Moon...

... 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. ...

... 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. ...