Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

... The source exhibits a mas-scale structure which, according to the USNO multi-epoch monitoring at 2.3 and 8.4 GHz over the period from 1994 July through 1998 April, undergoes considerable changes in the brightness distribution and positions of the major structural features. Our image is qualitatively consistent with the structural pattern of the source. ... We note a difference of ~90 in position angles of secondary components in our image and the 5 GHz VLBI image by Shen et al. 1998). ...

Peremennye Zvezdy", . ... Comment . ... see Comments) . ... chart.PNG . ... TYC 3682 1267 1, BD+58 257, HD 236771 . ... TYC 3682 1407 1 . ... Comments: . ... TYC 3682 1267 1 is a known eclipsing variable star. ... TYC 3682 1407 1 is a multiperiodic Delta Scuti variable star with a small amplitude. ... During the study of TYC 3682 00837 1, found constant by us, we discovered three new variable stars in its neighborhood. ... The comparison star was GSC 3682-01371 and the check star, TYC 3682 00837 1. ...

... Epistemology is a part of the study of Philosophy dealing with how we use our senses to know something about the world. ... Yet we know that we can be deceived by our senses. ... If we cannot always trust our senses, how can we ever know anything for certain about the world? ... A branch of epistemology that has come into vogue in the last 10-15 years is the problem of consciousness. ... What relationship is there between our conscious experience and the true nature of the physical world? ...

. To see a Russian version of this page, click here . (Professor, Director of SAI. Graduated from the Moscow State University (MSU) in 1964, Ph.D. 1967, MSU, Dr. of Science 1975, MSU) . A member of IAU and EAS, IAU committees No 42, 27. Fields of interest: Stellar astrophysics, close binary systems, inverse problems in astrophysics. Send your mail to: cher@sai.msu.su .

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

A very important stage in a story of formation of any new science is the shift from discussion of situation which are possible but do not occur in practice due to some reason to recognition of real phenomena of interest. ... We suggest to consider computer viruses as this new specific form of life which is coming in the contact with our form of life. ... Computer life has been created by human being, the role of independent evolution of computer viruses seems to be still negligible. ...

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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. ...

Evolution of the double neutron star merging rate and the cosmological origin of Gamma-ray burst sources " , Astroph.J., 1995, v.454, 593-596 (Lipunov, V.M. Postnov, K.A. and Prokhorov M.E.) . Evolution of SupernovaЃExplosion Rates in theЃ Universe (Jorgensen H., Lipunov.M., Panchenko I.E., Postnov K.A., Prokhorov M.E.) ApJ, 1997, v.486,p.110 . ... Formation of a Gravitationally Bound Object after Binary Neutron Star Merging and GRB phenomena " (G.V.Lipunova, V.M.Lipunov). ...

... Bad Astronomy . Misconceptions . ... First, let's see if there can be any effect from the planets and stars as astrologers claim. ... Either way, the planets' combined force is miniscule compared to the Sun's. If EM is the force behind astrology, the planets could be safely ignored. ... After all, if a force cannot be measured, it cannot have an effect on us, and if astrologers say such a force exists, then all their claims must be based on that force, and should be consistent with each other. ...

Astronomical Data Analysis Software and Systems VII ASP Conference Series, Vol. ... A Parallel Procedure for the Analysis of Long­term Sequences of Light Curves A. F. Lanza, M. Rodon‘o 1 , U. Becciani and V. Antonuccio Delogu Osservatorio Astrofisico di Catania, Viale A. Doria, 6 ­ I 95125 Catania, Italy Abstract. ... 1995, Lanza et al. ... The minimization of the function Q for all the light curves of a given se­ quence, for fixed values of the system parameters, represents a cycle of the procedure. ...

. Back to A.Zasov's homepage.

... NASA Astronaut . ... NASA EXPERIENCE: Selected by NASA in April 1996, Dr. Pettit reported to the Johnson Space Center in August 1996. ... He lived aboard the International Space Station for 5-1/2 months during Expedition 6, was a member of the STS-126 crew, and again lived aboard the station for 6-1/2 months as part of the Expedition 30/31 crew. ... Expedition 30/31 (December 21, 2011 to July 1, 2012) launched to the International Space Station aboard the Soyuz TMA-03M craft from Kazakhstan. ...

... During all period of our investigations Dr. N.Sumzina from the Institute of Applied Astronomy of RAS had prepared the Numbered Minor Planet positions from MPC Database for our processing with kind permission of the Director of Minor Planet Center Prof. Braian Marsden. ... Our extensive processing of the MPC data allows us to conclude that CCD observations of the Numbered and Unnumbered Minor Planets have the errors, sometimes very crude. ...

... Dept. for Astrometry & Space Geodynamics . ... Dept. for Physics of Stars&Galaxies . ... Glass Archive . ... We invite you to participate in the 1st International scientific and practical conference, dedicated to the 100th anniversary of astrophysicist I. S. Shklovsky БЂњThe problems of modern astronomy and methodics of its teachingБЂќ . The conference will be held on October, 6б­8, 2016 at Natural sciences education department of Oleksandr Dovzhenko Hlukhiv national pedagogical university. ...