Hide Zen home . ... We realized original spatial algorithm for 2-dimensional data with spherical attributes in open-source database PostgreSQL, which allow us to work with terabyte-sized data. ... The total number of objects in our database is about 4 billions (10^9) objects. ... Large scale survey projects produce huge amount of data, which needs to be processed and organized in databases to provide access by astronomical community. ... Astronomy is the only science which has so many objects. ...

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• Zen: Abstract
• SAI Supernova catalog
• APOD: September 28, 1999 - Mystery Object Explained

Next: The Submillimeter Array Data-Handling System . ... Previous: INES: The Next Generation Astronomical Data Distribution System . ... At the Padova Astronomical Observatory (OaPd), we are developing a system for managing large sets of astronomical data, such as the GSCII catalog that will be released in the near future. ... The main purpose of the system is to allow a powerful and efficient querying activity on large astronomical catalogues through the Internet by using a simple Web interface. ...

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• SIMBAD as a Test Bed for two Object Oriented Database Management Systems:
• CDS Services; recent Developments
• New Capabilities of the ADS Abstract and Article Service

... 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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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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... 150Trushkin Verkhodanov We present results of cross-identifications of the objects from two large catalogs, IRAS-Point Source and Texas, in the database CATS. ... In the 511 ITA sources, already identified with different sources in the initial IRAS catalog, galaxies and Milky Way radio sources dominated. ... However radio catalogs at the higher frequencies than those of the Texas catalog, which are more sensitive to extended objects radiation, are needed for cross-identification with the IRAS...

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• CATS-manual
• A REVISED AND UPDATED CATALOG OF QUASI-STELLAR OBJECTS
• The Hamburg/SAO Survey for Emission-Line Galaxies

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . Brief History of Rocket and Space Technology . ... Flights Chronology . ... 55 years since Yuri Gagarin's flight . ... Project History . ISS Russian Segment . ... History of flights . ... Acquire the data on dynamics of the body composition including the liquid media of the human organism and their distribution in a long term space flight. ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

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... ADQL is the Astronomy Data Query Language. ... JWST is planning to select guide stars from the Guide Star Catalog 2 (GSC2). ... these issues, we will need the following constraints: Agree AND ((a.class=0 AND Disagree AND ((a.class=0 AND Brighter* Fainter* * b.r =20 is the median value of magnitude r above. b.type=6) OR (a.class=3 AND b.type=3)) b.type=3) OR (a.class=3 AND b.type=6)) AND ( b.r 20) AND ( b.r 20) from the results of the Base query included 10 - Determine how many ...

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• Linking in the Astrophysics Data System
• Near Infrared Camera and Multi-Object Spectrometer Instrument Handbook for
• Acquisition Count Rates for Extended Objects

Storing and accessing the largest astronomical catalogues with the SAI CAS project S. Koposov1,2,3, O. Bartunov2, S. Karpov4 et al2. ... Why we want to build our own Catalogue Access Service The requirements for our CAS system The importance of the Database for the CAS (PostgreSQL & Q3C) The technical realization of CAS What has been already done Example of work TODO Storing and Accessing Astronomical Catalogues Existing projects CDS OpenSkyQuery CASjobs with SDSS They are all really great! ...

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• Speckle polarimeter

Paolo Padovani , II Universit di Roma , Paolo Giommi , ASI, SDC and Fabrizio Fiore, ASI, SDC and Osservatorio Astronomico di Roma . Original Version: MNRAS, (1997), 284, 569 . Text copyright (c) 1997. ... We study the X-ray spectra of 114 flat-spectrum radio quasars (FSRQ) using the hardness ratios as given in the WGA catalogue of ROSAT sources. ... We find that FSRQ have a distribution of energy spectral indices ranging between 0 and 3 with a mean value alpha_x ~ 1. ... Figure 1 (13kb) . ...

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• FSRQs
• ArtistтАЩs impression of the expected dark matter distribution around the Milky
• BL Lacs

... Apache HTTP Server Version 2.4 . Apache > HTTP Server > Documentation > Version 2.4 . ... The Shared Object Cache provides a means to share simple data across all a server's workers, regardless of thread and process models . ... Initialize the cache. ... Destroy a given cache instance object. apr_status_t store(ap_socache_instance_t *instance, server_rec *s, const unsigned char *id, unsigned int idlen, apr_time_t expiry, unsigned char *data, unsigned int datalen, apr_pool_t *pool) . ...

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• Module Index - Apache HTTP Server
• APOD: October 4, 1995 - The Sun Spews X-rays
• APOD: December 30, 1998 - Supernova 1994D and the Unexpected Universe

... 840Z: ZELDOVICH YA.B. and GUSEYNOV O.H. Collapsed stars in binaries. abstract from ADS when it exists. Total number of objects found: 7 . Currently displayed are the first identifier in SIMBAD and the object type. By clicking on the [Dic CAT] anchor, you get the informations from the nomenclature dictionnary for the corresponding catalogue. By clicking on the identifier itself , you get the basic data and all the identifiers from SIMBAD. ... Emission-line Star.. Dic HD] #2.. ...

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• Be/X-ray binaries and candidates
• ADS Abstract Service
• ADS Abstract Service Results

... Mystery Object Explained . ... Further investigation has now revealed the object to be a Broad Absorption Line (BAL) quasar , a relatively rare type of active center of a distant galaxy. ... NASA Web Site Statements, Warnings, and Disclaimers . ... Публикации с ключевыми словами: далекие галактики - квазары - линии поглощения - активная галактика - ядра активных галактик . Публикации со словами: далекие галактики - квазары - линии поглощения - активная галактика - ядра активных галактик . ...

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• Mystery Object Explained
• XWare Team
• Astronet > Sky Map, professional edition

... Analysis of in-orbit data closely follow the CSL data analysis. Stars with known astrometric positions are matched with their image centroids. ... The measured position, the expected position and the offset between the measured and expected positions are calculated and written into a file. ... select catalogued positions for different observations/pointings (e.g. positions of objects in photometric sequence) . ... The new distortion map was generated from in-flight observations of the G153 field. ...

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• Selection of observations of empty RGS files
• Description

... Bispectrum Speckle Interferometry of the Massive Protostellar Object S140 IRS 1: Evidence for Multiple Outflows . ... P21W Bispectrum speckle interferometry is emplyed to explore the deeply embedded young stellar object S140 IRS 1 and its environment. ... The diffuse structures around IRS 1 seem to trace the interaction of energetic outflows from IRS 1 with the circumstellar material. ...

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• High-resolution Near-infrared Study of the Deeply Embedded Young Stellar Object
• Introduction
• Radio sources identfification

Astronomical Data Analysis Software and Systems VII ASP Conference Series, Vol. ... The WWW interface now uses WWW cookies to store and retrieve individual user preferences. ... This cross­linking between di#erent data systems pro­ vides the user with the means to find comprehensive information about a given subject. 1 http://adswww.harvard.edu 378 New Capabilities of the ADS Abstract and Article Service 379 2. ... Quick Updates: The quick updates allow us to quickly enter new data into the database. ...

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• http://www.stecf.org/conferences/adass/adassVII/reprints/mcglynnt.ps.gz
• http://www.stecf.org/conferences/adass/adassVII/reprints/pasianf1.ps.gz
• http://www.stecf.org/conferences/adass/adassVII/reprints/baruffoloa1.ps.gz

... R1792 Date Received: 2003-Apr-08 17:12:36 Technical Page Proposal Type: Urgent General Category: Planetary Radar Observation Category: Solar System Total Time Requested: 9 Hours Proposal Title: Radar Observations of 2003 GF21 ABSTRACT: The near-Earth object, 2003 GF21, is observable with the Arecibo planetary radar on April 12-14. ... The number of near-Earth asteroids observed is still very small, given the large variety of sizes, shapes and rotation properties that have been seen. ...

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• http://www.naic.edu/~tghosh/sabatina/presentations/TF_final3.pdf
• http://www.naic.edu/vscience/schedule/tpfiles/ArzoumaniantagP2175tp.ps
• Buying a Star: the Facts

... 2000 . ... Abstract: I present the distribution of the brightest galaxies in the southern sky as obtained from the H I Parkes All-Sky Survey (HIPASS). ... A histogram of the systemic velocities of the brightest HIPASS galaxies is shown in Fig. ... It peaks, as expected, in the interval 800 to 2000 km/s. No bright galaxies were found with systemic velocities of less than -350 or more than 5500 km/s. Figure 2: Histogram of the H I systemic velocities of the brightest galaxies obtained from HIPASS. ...

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• A Search for Bright Kuiper Belt Objects
• Australia Telescope National Facility
• Distributed Archives Interoperability

Automatic Detection of NEOs in CCD Frames . ... CCD frames obtained with modern telescopes with robotic operation allow carrying out standard observation programs for detection of peculiar objects on stellar backgrounds, as is the case of Near Earth Objects (NEOs). ... In this paper, we present original algorithms for automatically detecting dim NEO images in telescope frames, considering both sidereal and differential tracking [2]. ...

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• Keywords_312
• Keywords_302
• Keywords_102

PROJECT SUMMARY (max 3000 characters) The principal goals of the project are the observational and theoretical investigation of complex cosmic objects where the processes of dust scattering, absorption and emission play significant roles. ... Development of light scattering theory and computer codes to calculate the optical properties of non-spherical inhomogeneous particles and laboratory measurements of light scattering characteristics of irregularly shaped particles. ...

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• Announcements | Radiation mechanisms of astrophysical objects: classics today
• Radiation mechanisms of astrophysical objects: classics today | Механизмы
• Database of Optical Constants -- Level: welcome

... Meade Instruments Corporation . ... Autostar Computer Controllers . 497 Autostar . ... One of the most important advances in telescope control in the past 25 years, the Meade #497 Autostar Computer Controller turns the ETX into an automatic celestial object locating system. ... The #497 Autostar Computer Controller plugs into the control panel of ETX-90EC, ETX-105EC, and ETX-125EC telescopes and enables automatic location of more than 30,000 celestial objects. ... about meade | ... Meade 4M | ...

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• Meade Instruments - Telescopes, Solar Telescopes, Binoculars, Spotting Scopes
• Meade Instruments Corporation - Choosing the Right Microscope