... 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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Here we compare the optical properties of porous particles of two kinds: . ... Below we show the behaviour of the efficiency factors Q ext (x), Q sca (x), Q abs (x), the asymmetry parameter g (x) and albedo (x) as well as for x = 3 and 100 the phase function i (theta) and polarization of scattered radiation p (theta) for different values of the parameters m and P . ... factors . ... Qext(x) . Qsca(x) . ... i (theta) . ... albedo (x) . ...

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• Database of Optical Properties -- Level: subsubpage
• Database of Optical Constants -- Level: welcome
• Databases for Atomic and Plasma Physics

... References: %Observed energy levels (2-5): Kucera et al., 2000, ApJ , 538, 424 % Observed energy levels (6-15): Edlen, B., 1984, Pysica Scripta, 30, 135 % Observed energy levels (n=3): identifications from the X-ray line list by Landi Phillips 2005 , ApJ , in press % Observed energy levels (n=4,5): Shirai,T., Sugar,J., Musgrove,A., Wiese,W.L., 2000, J.Phys.Chem.Ref.Data, Monograph 8 % Observed energy ...

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Expert Database on the Earth Impact Structures . ... Very Long Baseline Interferometry (VLBI), Near Earth Objects (NEOs), Earth Impact Structures (EDEIS), Expert Database, Earth Impact Database, the degree of confidence of impact origin, validity index V, classification of structures over the validity index, impact criteria, morphological impact criteria level, geological impact criteria level, petrological impact criteria level, mineralogical impact criteria level. ...

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• Keywords_200
• ACH-2009
• Keywords_302

This page is intended for presentation of astronomical databases maintained at Sternberg Astronomical Institute, Moscow University. These Projects are partially sponsored by INTAS and RFBR foundations. Hypercat mirror , (RFBR #99-07-90067) . ... Catalogue of Spatially Resolved Kinematics of Galaxies , (RFBR #99-07-90067) . ... Online access to SAI catalog of SN Light Curves . ... We have implemented Web gateways to some of our catalogs. ... HTTP access to SAI Catalog of Supernovae Stars . ...

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• Sternberg Astronomical Institute
• APOD Index - Solar System: Asteroids
• Zen: AstroChallengesDB

Next: Conclusions Up: Selection Effects Previous: Inconsistent (or Inconsistently Applied) . Another possible bias, present in this as well as all other surveys which use spectral indices based upon nonsimultaneous data in their selection process, is due to variability. ... In order to minimize the effect of non-simultaneous radio survey data upon our samples, we decided to expand the common definition of flat-spectrum radio sources to extend to (instead of 0.5). ...

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• Effective temperatures
• MBOSS-2
• How DFS components access databases

Работа выполняется при поддержке гранта РФФИ N 12-02-00675-а . и Программы Президиума РАН N22 . This work is supported by RFBR grant, project N 12-02-00675-а . ... АСТРОМЕТРИЧЕСКИЕ БАЗЫ ДАННЫХ . ... THE ASTROMETRIC DATABASES . OF THE PULKOVO OBSERVATORY . ... Исполнители проекта: Е.А. Рощина (руководитель), И.С.Измайлов, М.Ю.Ховричев, Нарижная Н.В., Дементьева А.А., Шахт Н.А.,Кияева О.В., Романенко Л.Г., Калиниченко О.А., Васильева Т.А. Администратор сайта: М.А. Рощин. ...

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• Pulkovo databases: photometric observation

... 238, Astronomical Data Analysis Software and Systems X, eds. F. R. Harnden, Jr., ... Web-based access to the data will provide a powerful, convenient tool for data searching and solar physics. ... The system will be generated by PHP and MySQL. ... Given the large amount of data, and that the data is not only plain text but also image file, visual file, we select a relational database--MySQL--to build the database management system, and use PHP to build the database engine and user query interface. ...

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• Database Applications
• Chandra Ground Calibration Raytrace Database and Simulator
• Application of the Linear Quadtree to Astronomical Databases

Dynamic Scheduling and Coordina3on Agreements Andrew Clegg Coordina3on Agreements · Agreements nego3ated with other spectrum users to protect radio astronomy observa3ons from poten3ally conflic3ng transmissions · Impacts shared bands or adjacent bands · O@en specified on the basis of one of the following: ­ Geography ­ Time ­ Both geography and 3me Coordina3on Example (U.S.) 14.47- 14.5 GHz ...

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• SM - Termcap -- A Terminal Database
• The ATNF Pulsar Database
• Why do we need a database protection treaty?

. Please use the reference to MASTER DataBase as Lipunov et al., 2010, MASTER Robotic Net, Advances in Astronomy, vol. 2010, pp. 1-7 . - days . MASTER , 2002-2016

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• Dome Kislovodsk Database ::
• Astelco Kislovodsk Database ::

... Now available as an ExInEd Electronic PictureBook, these paintings and their accompanying captions tell the story of the dramatic impact and the climactic changes that may have occurred as a result. The Impact Catastrophe That Ended the Mesozoic Era is an exciting tale and is recommended for all ages. Click on this icon if you would like to see a collection of snapshots of actual pages from "The Impact Catastrophe that Ended the Mosozoic Era" Electronic PictureBook. ...

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• Roelof's Citation Statistics
• Color Transformations of Primary Filters
• Color Transformations of Primary Photometric Filters

... Archives . ... Quote of the Week, Aug 23, 2007 . Aug 22nd, 2007| 08:55 pm | ... An Isochrone Database and a Rapid Model for Stellar Population Synthesis by Li and Han . This paper emphasize the binary population: CMD fitting with the binary population synthetic model outperformed to the single population model. ... They fitted their isochrone database to M67 and NGC 1868 with the gT-grid and concluded that the database of binary stellar populations fitted the color magnitude diagrams better. ...

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• PAUL J. GREEN - ConcepTests
• The AstroStat Slog effective area
• The AstroStat Slog database

... Panchuk V.E. Database "Stellar Spectra" consists of following main units: . ... obtained with various modifications of high resolution echelle-spectrometers at the 6-m telescope. ... Using the spectra obtained at BTA in combination with high resolution echelle-spectrometers LYNX and PFES , Chentsov E.L., Klochkova V.G. and Panchuk V.E. prepare now the next spectral atlas. ... The CATALOGUE of spectral photoplates obtained at the Main Stellar Spectrograph of the 6m telescope. ...

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• Related usefull links

... (degrees) b2 galactic latitude (degrees) sgl supergalactic longitude (degrees) sgb supergalactic latitude (degrees) pgc PGC name *** alphabetical ** ident1 1st name (NGC,IC,UGC,ESO...) *** alphabetical ** pa position angle (N- E) in degrees typ morphological type (e.g. 'E','Sab','SBa','SO') *** alphabetical ** ring 'R' for Ring galaxies, otherwise ' ' (blank) *** alphabetical ** multiple 'M' for multiple galaxies, otherwise ' ' (blank) *** ...

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• Catalog of the LV Galaxies
• Connect to Database
• HyperLEDA documentation: compilation of Color index (a112)

... We present new progress in our extensive pro ject mCPod (On­line database of photometric observations of magnetic CP stars), which was initiated five and a half years ago (Mikulґ et. al, 2007). ... The database consists of two parts, the Data and the References. In the References one finds the sources of data, the bibcodes including links to the corresponding papers, names of comparison and check stars (if available), the number of observations in individual filters (see Fig. ...

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... Events . ... Pre-university education . ... Web of Science database ( http://webofknowledge.com ) is available since 2 October. This database is the most competent analytic and citation database of journal articles, including 3 bases: Science/Social Sciences/Arts&Humanities Citation Index. To rate citation index, impact-factor, Hirsch index scientists and specialists of all subject areas are recommended to use Web of Science database since it is the most important one for the researchers. ...

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• Young scientists of Samara University began to make the most complete database

... Moscow University Search Engine . AstroSearch - search astronomical sites . Open FTS search engine . MailWare (PostgreSQL mailing list archive) Our commercial interests . ... This full text search engine by XWare team provides the document search over all Moscow State University Web sites. ... OpenFTS (Open source Full Text Search) is an advanced PostgreSQL-based search engine that provides online indexing of data and relevance ranking for database searching. ... 2001-116 XWare Team. ...

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• A Year of Assessing Astronomical Hazards
• Астронет > A Year of Assessing Astronomical Hazards
• Journal "Peremennye Zvezdy"

Databases (NSDC) of the Natural Planetary Satellites. ... NSDC: Database of astrometric observations of Natural Planetary Satellites . ... They are thoroughly looking for observations in different sources, creating their owndatabases which are then mostly inaccessible to other researchers. ... In the file "content" with explications, the reference is given to the data source as well as the bibliographic reference. ... Data sources. ... Why a specific bibliographic database for Natural satellites? ...

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Arecib o Asteroid Dynamics Workshop SUNDAY evening: Welcome Reception in Library MONDAY morning : Orbits 9:00 9:20 9:40 10:00 Steve Chesley David Nesvorny ґ David Vokrouhlicky ґ Jon Giorgini The First Direct Measurement of Yarkovsky Acceleration on an Asteroid Yarkovsky Effect Measured for Main-Belt Asteroids Next Yarkovsky Candidates Asteroid Orbit Determination and Radar Astrometry: Small Forces and Long-Term Prediction 10:20 11:00 11:20 Coffee ...

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• GOLDMiNe: Virgo cluster optical and HI databases
• Arecibo Observatory Telescope Schedule Database
• AO Spectral Line Position Search Database.

Software Forum Message . ... Astronomy Software Discussion | ... Starry Night Pro Plus 6 - How Do I Enter Large Asteroid Database . ... The starry night pro asteroid.txt file is confusing. ... I have downloaded a page of Near Earth Asteroids from the Nasa website but I'm not sure what format starry night requires. ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• The Deep Sky Database, AstroGuide Listing
• Astronomy Net creates online database to organize debris location reports.
• International Dark-sky Association - Ida, AstroGuide Listing