... Bad Astronomy . ... News . ... In the following article, I used the wrong number to get the circumference of the Earth at the latitude of Cape Canaveral, which ironically is what I accuse Ms. vos Savant of as well! ... At the Equator, the Earth spins at 1000 miles per hour (the Earth is 24,000 miles around, and spins once every 24 hours). ... The math is a wee bit hairy, but not too bad, to calculate the circumference of the Earth at Cape Canaveral assuming the Earth is an ellipse with these numbers...

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... A Multidimensional Binary Search Tree for Star Catalog Correlations D. Nguyen, K. DuPrie and P. Zografou Smithsonian Astrophysical Observatory, Cambridge, MA 02138 Abstract. A multi­dimensional binary search tree, k­d tree, is proposed to support range queries in multi­key data sets. ... Data Volume Limitation If the k number of keys to be searched for contain RA, Dec and some other attributes then one can minimize the number of nodes in the tree by utilizing only the near neighbor FITS files. ...

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Astronotes Armagh Planetarium's Stellar Blog! ... Monthly Sky Notes . ... Image credit: Julie Thompson / Armagh Planetarium) . ... These seven entrants and their class have won a free trip to the Planetarium.€а All entries are on display in our Exhibition Area.€а A number have been included in a special Christmas trailer running before all shows in our Digital Theatre throughout December so why not check out the works by the countryтАЩs budding new artists this Christmas break at Armagh Planetarium? ...

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STANDART (ZONE) TIME is a medium solar time, determined for the 24 general geographical meridians, being 15* in longitude. The Earth surface is divided into 24 hour zones (with numbers from 0 to 23) where zone time coincides with the time of the prime meridian passing through these zones. ... The zone time of some zones has it’s own name, for example the zone time of the zero zone is called West – European (universal); the zone time of the second zone is called East-European. ...

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ATMoB "Open Cluster Observing Award " Guidelines Purpose: To promote observing among the membership of the Amateur Telescope Makers of Boston through participation in the Open Clusters Observing Awards program. Introduction: This awards program is oriented towards visually observing open clusters above magnitude 9.9. ... It turns out that a very unprejudiced and convenient method to dermine the limiting magnitude is to count the number of visible stars in certain areas on the sky. ...

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NAME ab - Apache HTTP server benchmarking tool SYNOPSIS ab [ - k ] [ - i ] [ - n requests ] [ - t timelimit ] [ - c con- currency ] [ - p POST file ] [ - A Authenticate username : password ] [ - P Proxy Authenticate username : password ] [ - H Custom header ] [ - C Cookie name = value ] [ - T content - type ] [ - v verbosity ] [ - w output HTML ] [ - x table attributes ] [ - X proxy [:port] ] [ - y tr ... Default is no KeepAlive. - i Use an HTTP 'HEAD' instead of the GET method. ...

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... Number theory . ... Linear algebra . Commutative algebra . Algebraic geometry . Noncommutative algebra, groups, rings, algebras . Category theory, homological algebra, $K$-theory . ... Ordinary differential equations . Partial differential equations . ... Fourier and harmonic analysis, integral transforms, operational calculus, integral equations . Functional analysis and operator theory . ... Geometry, differential geometry . ... Global analysis, analysis on manifolds . ...

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DSS Mirror Archive at SAI MSU Search Position in the form "ra,dec" where ra and dec are given in decimal degrees in the ICRS coordinate system. ... ALL GRAPHIC METADATA image/fits image/jpeg . Field name Survey Observation midpoint as Modifed Julian Date RA of image center Dec of image center Number of axes Image size Image scale for each axes Bandpass CD matrix Reference pixel Reference pixel Projection Coordinate system reference frame Image format Image URL ...

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TENTH CREW REQUIRED RESOURCES SEVENTH RUSSIAN VISITING CREW IMAGE VIDEO . ... EXPEDITION TEN (ISS-10) . ... In the course of ISS-10, 161 sessions of 41 experiments are to be implemented. Thirty eight experiments were started in the previous increments. Three experiments ("SVS", "Bioemulsia", "Rokviss) are new. Allocation of Experiments and Number of Sessions by Research Areas. Research Area . Experiment Name . Totally . ... Total: . ... by Soyuz TMA-5 . ... 15 h 55 min . ...

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... GCR and SCR are primary cosmic rays. 10-15 years after the discovery of cosmic radiation (1919) there emerged two main avenues of investigation in the physics of cosmic rays (CR): 1) nuclear - elucidation of the origin of elementary particles and nuclear interactions; and 2) astrophysical (space physics) - solution of the problem related to the origin and variations (changes in intensity) of CR. ... Besides, the CR flux in interplanetary space is, strictly speaking, not isotropic. ...

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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 . ...

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... ASRAS HOME . Radio Astronomy . ... About ASRAS . ... Our Observing Site . ... 2015 Mees Tour Guides . ... We're offering Regular Tours (a presentation on astronomy geared to a general audience, followed by a tour of the observatory and (hopefully!) observing of several objects, which may include the Moon, planets, nebulae, star clusters and perhaps galaxies), and Kids' Tours (a more interactive presentation specially aimed at youngsters plus the observatory tour and observing) as in prior years. ...

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9th European and 5-th Euro-Asian Astronomical Society Meeting . 29 May - 3 June 2000, Moscow, Russia . EUROPEAN ASTRONOMY AT THE TURN OF THE MILLENIUM . The 9th Meeting of the European Astronomical Society (EAS) will be held in Moscow, Russia, jointly with the 5th Conference of the Euro-Asian Astronomical Society (EAAS). ... Invited reviews of outstanding problems of modern astronomy are expected to be given at plenary sessions. ... December 20, 1999: Pre-registration form deadline . ...

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Statistics of sunspot activity . The sunspot indices . ... Visual indices of solar activity . ... n - number of spot groups . A - Waldmeier class of unipolar spot groups without penumbra . B - class of bipolar spot groups without penumbra . C - class of bipolar spot groups with one penumbra pole . D - class of small bipolar spot groups with two penumbra poles . E - class of middle bipolar spot groups with two penumbra poles . ... H - class of unipolar penumbrated spot groups . ...

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Общая Астрономическая Конференция > Товары для астрономов > Продукция DeepSky > Продукция www.qhyccd.com . ... аксессуары http://qhyccd.com/en/left/accessories/ . QHY5V http://qhyccd.com/en/left/page3/qhy5-series/ . QHY5L-II color http://qhyccd.com/en/left/page3/qhy5-ii-series/ . QHY5L-II mono http://qhyccd.com/en/left/page3/qhy5-ii-series/ . ... QHY6 http://qhyccd.com/en/left/page4/qhy6-entrylevel/ . колеса фильтров http://qhyccd.com/en/left/qhy-colorwheel/qhycfw1-old-version-/ . ...

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... Corvus Capital, along with its own capital, has the backing of a number of international funding partners. ... MyCloudtag App has launched in the Apple App Store Google Play store! App Fitness & Health . Andrew Regan lead a 10 man team on the first ever there-and-back crossing of the Antarctica. ... CloudTag is a London Listed Company focused on the Fitness and Wellbeing Market. AIM Fitness & Health . Sirius Petroleum is an Oil Gas Company listed on London's AIM. AIM Oil & Gas . ...

80. MAKS