... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Risks Comparable to NEOs . ... The Increasing Rate of Discovery of Asteroids . ... Comet and Asteroid Collision Probabilities . ... Extreme albedo comets and the impact hazard (PDF Format) . ... Asteroid Impact Animations . ... Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids - 2002 . ... The Spaceguard Survey Report, 1992 (PDF) . Tsunami from Asteroid/Comet Impacts . ...

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Stellarium 0.12.3 . ... Classes . ... Quasar Class Reference . ... Quasar (const QVariantMap &map) . ... Get a QVariantMap which describes the Quasar . ... getSelectPriority (const StelCore *core) const . ... getInfoString (const StelCore *core, const InfoStringGroup &flags) const . ... getVMagnitude (const StelCore *core, bool withExtinction=false) const . ... getAngularSize (const StelCore *core) const . ... getPositionInfoString (const StelCore *core, const InfoStringGroup &flags) const . ...

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• Stellarium: Supernova Class Reference
• Stellarium: Pulsar Class Reference
• Stellarium: Exoplanet Class Reference

... Classes . ... casa::CompoundFunction< T > . ... The default constructor -- no functions, no parameters, nothing, the function operator returns a 0. CompoundFunction (const CompoundFunction < T > &other) . ... template<class W > . ... virtual Function <T>* casa::CompoundFunction < T >::clone . ... Referenced by casa::CompoundFunction< AutoDiff< Double > >::clone() , casa::CompoundFunction< AutoDiff< Double > >::consolidate() , and casa::CompoundFunction< AutoDiff< Double > >::operator=() . ...

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• casacore: casa::FunctionWrapper< T > Class Template Reference
• casacore: casa::CombiParam< T > Class Template Reference
• casacore: casa::CombiFunction< T > Class Template Reference

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

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• Potential Energy

... Search object | ... Extract mean data for a list of objects . ... DEC 1950 (degrees decimal value) . ... actual error on t . ... log10 of apparent diameter (d25 in 0.1') . ... actual error on logd25 . ... actual error on logr25 . ... actual error on brief . ... Apparent maximum rotation velocity of gas . ... actual error on vmaxg . ... Apparent maximum rotation velocity of stars . ... actual error on vmaxs . ... actual error on vdis . ... actual error on mg2 . ... actual error on m21 . ...

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• HyperLEDA documentation: parameter: celpos
• Definition of objects, sky subtraction and extraction of objects
• Mean astrophysical parameters from LEDA

... A file upload element on an HTML form. ... JavaScript 1.1: added type property . ... The HTML INPUT tag, with "file" as the value of the TYPE attribute. For a given form, the JavaScript runtime engine creates appropriate FileUpload objects and puts these objects in the elements array of the corresponding Form object. ... form . ... For all FileUpload objects, the value of the type property is "file" . ... Use the value property to obtain the file name that the user typed into a FileUpload object. ...

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• http://www.arcetri.astro.it/irlab/doc/library/javascript/clientreference/boolean.htm
• http://www.arcetri.astro.it/irlab/doc/library/javascript/clientreference/javarray.htm
• http://www.arcetri.astro.it/irlab/doc/library/javascript/clientreference/javobj.htm

... Plate reductions are necessary to measure the parallax, proper motion, and reflex motion of a given object with respect to the reference field star. ... The plate overlay tool derives a virtual plate using either a four parameter or six parameter plate solution. ... Formally the six parameter model requires at least three common reference stars in each plate, but in order to avoid over-constraining the plate solution, you should not apply the six parameter model with fewer than five reference stars....

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• http://www.stsci.edu/documents/dhb/web/c13_fgserrorV2.fm4.html
• Index
• Beginner's OOP and Java

... File name for the fits binary table containing X-ray source positions and their errors. opticalset . ... File name for the fits binary table containing optical source positions and their errors. findrotation . ... boolean . ... name of B magnitude column . ... column name of optical catalogue position RA . ... column name of optical catalogue position DEC . ... column name of optical catalogue position error . ... column name of X-ray source position RA . ... column name of X-ray source position DEC...

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There are six possible ways of object description: . a) by number(s) . ... d) by list . e) by orbital elements . ... They should be introduced as year, month, day with tenth (e.g. 20021104.1). d) Computations are performed for all objects listed in the file whose path and name should be introduced into assigned data field. ... On pressing Edit file button user has a possibility to look through the list of object elements or their coordinates and velocities to add or to change it. ...

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• ENGAMPLE
• LAB Ephem. Astronomy-ERA

tranback -- Transform an X,Y position from output to input pixel position using the same conventions as drizzle tranback xout yout . xout = 400 [real] . ... The X dimension of the input image (this is used to determine the centre which is the origin of the transformations). (nyin = 800) [real] . ... If "output" the input image center is mapped to the center of the output grid, rotated about that center and then shifted along the grid of the output image. ...

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• TRAXY (V0.4) --- Dec99 --- TRAXY (V0.4)
• SLITLESS (Oct97) --- ST_ECF --- SLITLESS (Oct97)
• HSTPOLPOINTS (V1.00) --- May99 --- HSTPOLPOINTS (V1.00)

... Next: Object Detection Using Up: Object Detection and Previous: Automated Classification of . ... A status report of the The GSC Object Classifier (GOC) project is presented. ... The GSC contains multiple entries for some objects due to plate overlap. It classifies objects as stars, non-stars, galaxies, blends and potential artifacts; the latter three classifications are rare, and only exist in GSC version 1.1, to which they were added manually. ... star, . ... non-star, . ...

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• Modern CCD Observations of Moving Celestial Objects: Algorithms and Software
• Xguiphot: A New Aperture Photometry Tool for IRAF
• The SuperCOSMOS Sky Surveys

lsst.coordConv љ unknown . ... Classes . ... coordConv::AppGeoCoordSys Class Reference . ... AppGeoCoordSys (double date=0, double maxAge=0.05/( SecPerDay * DaysPerYear ), double maxDDate=2 * DeltaTForPos /( SecPerDay * DaysPerYear )) . ... clone (double date) const . ... CoordSys (std::string const &name, double date, DateTypeEnum dateType, bool isMean , bool canConvert ) . ... virtual double coordConv::AppGeoCoordSys::dateFromTAI . ... virtual double coordConv::AppGeoCoordSys::taiFromDate . ...

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• sgs summary
• lsst.tcc: python/tcc/base/tune.py Source File
• lsst.coordConv: coordConv::OtherCoordSys Class Reference

Weaving together Astronomy+Statistics+Computer Science+Engineering+Intrumentation, far beyond the growing borders . ... Archives . ... A fast Bayesian approach to discrete object detection in astronomical datasets ? ... Algorithms arXiv Astro Bad AstroStat Bayesian CHASC Cross-Cultural Data Processing Fitting Frequentist Galaxies gamma-ray High-Energy Imaging Jargon Job Languages MC MCMC Meta Methods Misc News Nuggets Objects Optical Physics Quotes Spectral Stars Stat Timing Uncertainty X-ray . ...

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• The AstroStat Slog Blog Archive [ArXiv] Matching Sources, July 11, 2007
• The AstroStat Slog objective priors
• Chandra Images for SNR J0526.0-6604

... Field size . Object name . ... Map size . ... Field size: the approximate size of the map in the Y direction. ... Galaxies: . ... Galaxies, which size exceeds some value depending on the field and map sizes, are displayed with their real positional angles and sizes by 25m isophote. ... In the "tools" fields there are links to the several famous AVO (Astrophysical Virtual Observatory) resources: NED and Simbad databases and DSS2 (Palomar Digitized Sky Survey) images of the corresponding sky area. ...

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• Астронет > Микролинзирование
• Астронет > Галактика IC342: Основные Данные
• Journal "Peremennye Zvezdy"

... NED Home . ... Redshift: Between 0.150000 and 0.270000 . Include ALL Object Type: QSO Radio . ... Number of Essential Note) RA DEC Type km/s z Qual arcmin Refs Notes Phot Posn Vel/z Assoc Images 1 30000 0.228000 0.0 26 0 8 3 0 0 Retrieve 2 30000 0.181000 0.0 5 0 4 1 0 0 Retrieve 3 30000 0.171000 0.0 67 1 1 0 0 0 Retrieve 4 30000 0.260000 0.0 90 1 16 5 0 0 Retrieve 5 30000 0.163009 0.0 170 10 5 4 3 0 Retrieve 6 30000 0.245000 0.0 27 1 1 2 1 0 Retrieve 7 30000 ...

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• AGES Database Search
• weight on turret floor
• Converting Arecibo Interim Correlator data into a FITS image

Subject, Problems and Objects of Theoretical Astrophysics. ... Stellar Photospheres, Their Features. ... Physics of Continuous Radiation Absorption in Stellar Photospheres. ... Continuous Radiation Absorption in Stellar Photospheres of Various Spectral Classes. Solar Type Photospheres. ... Characterisics of Absorption Lines. ... Interstellar Absorption Lines, Their Features. ... Physical and Dynamic Features of Interstellar Medium, Which Follows from Observations of Interstellar Absorption Lines. ...

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• ENERGOSPECTROMETER OF IONOSPHERIC PLASMA P3-3

... The used with LSS CCD camera (1994,*) was designed in the Laboratory of Spectroscopy and Photometry of Extragalactic Objects of SAO RAS on the base of CCD chip ISD015A ("Electron", St-Petersburg). The cryostat of CCD camera was produced in VNIIT. CCD camera authors: Gudkin (VNIIT), V.L.Afanasiev and S.V.Drabek (SAO) . A cryostated Charge Coupled Device (CCD) parameters: . ... ADU . ... 0 - 8191 ADU . ... Back to LSS main page. Back to Laboratory Home Page . ...

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• On the problem of high spectral resolution observations of faint objects
• Search for distant radio galaxies in SAO
• Laboratory of spectroscopy and photometry of extragalactic objects : Vortex1

... Indeed, one alteration of orbits can be the outright ejection of a planet. When several big planets are orbiting a star under each other's influence, the system is inherently unstable. ... We know of no good reason why the smallest objects with fusion should have the same mass as the smallest objects that can form by themselves. ... 6) Mission Definition . ... I don't think this mission is impossible, and will suggest a definition in a future article in Mercury. ... Good luck! . ...

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• ASP: More About Deep Space Objects and Cosmic Terms
• ASP: Taking a Grand Virtual Voyage in the Milky Way

... FIELD | ... METHOD . ... java.lang.Object ij.plugin.filter.MaximumFinder . ... public class MaximumFinder . ... 32768 pixels in width or height version 01-Nov-2009 Bugfix: extra lines in segmented output eliminated; watershed is also faster now Maximum points encoded in long array for sorting instead of separete objects that need gc New output type 'List' . ... static int . ... The plugin is inferred from ImageJ by this method . ... int . ... Field Detail public static final int SINGLE_POINTS . ...

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• CurveFitter (ImageJ API)
• UnsharpMask (ImageJ API)
• Uses of Class ij.io.FileInfo (ImageJ API)

Pulkovo NEO Page . ... EPOS Software Package . ... EPOS ( E phemeris P rogram for O bjects of the S olar system) is the Windows PC application for study and ephemeris support of observations of the Solar system objects. ... It controls the part of common data and transfers the control to one of the programs that solve the restricted set of tasks. ... So with the EPOS software package one can calculate the accurate ephemerides for many objects and get the quick illustration of their motion as well. ...

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• Pulkovo NEO Page: Observations