... 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 . ...

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 . ...

... The remote planet Pluto and its moon Charon orbit the Sun at a mean distance of almost 6,000 million kilometres, or nearly fourty times farther out than the Earth. During a recent investigation by an international group of astronomers [1], the best picture ever of Pluto and Charon [2] was secured with the European Space Agency's Faint Object Camera at the Hubble Space Telescope (HST). ... The new HST image was taken when Charon was near its maximum elongation from Pluto (0.9 arcseconds). ...

... Reference Data for Calibration and Tools . ... File Structure . Reference Files . ... Reference Files (Instrument . ... Delivery of Reference Files . ... This atlas contains the model spectra of the Orion nebula, and of the planetary nebula NGC 7009. ... Table: List of Templates in the GALACTIC Atlas File Name Spectral coverage Comments (angstroms) orion_template 1000 - 11000 model: cont+lines pn_template 1000 - 11000 model: cont+lines . To The Galactic Emission Line Object Atlas Copyright | ...

... We present the first edition of the Sloan Digital Sky Survey (SDSS) Quasar Catalog. The catalog consists of the 3814 objects (3000 discovered by the SDSS) in the initial SDSS public data release that have at least one emission line with a full width at half-maximum larger than 1000 km s-1, luminosities brighter than Mi*=-23, and highly reliable redshifts. ... Based on observations obtained with the Sloan Digital Sky Survey, which is owned and operated by the Astrophysical Research Consortium. ...

... JavaScript version 1.3 provides the following new features and enhancements: . ... See the Client-Side JavaScript Guide for details. ... Changes to the Array object. ... The push method returns the new length of the array rather than the last element added to the array. ... Changes to the Date object. ... Added a day parameter to the setMonth method. ... Added the apply method, which allows you to apply a method of another object in the context of a different object (the calling object). ...

... Recent Results . ... last 10 years in ADS) . in SAO press releases . ... observations database) . ... Last update: . ... Measurement of the dark halo shape in polar ring galaxies . Determining the mass of supermassive black hole in galaxy Mrk6 nucleus based on spectropolarimetric observations . The dust jets in the nucleus of comet 29P/Schwassmann-Wachmann 1 . ... New Polar Ring Galaxies . Traces of recent interactions in isolated Seyfert galaxies . ...

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. ...

OFFICIAL PRESS RELEASE . ... The Progress M1-11 vehicle prelaunch processing was conducted under the direction of Yu.P. Semenov, Technical Manager of the Russian Manned Flight Programs, General Designer of S.P. Korolev RSC Energia, the RAS academician. ... It is the 11th space vehicle of the range of transport cargo vehicles-tankers developed and manufactured by S.P. Korolev RSC Energia in cooperation with the Russian rocket-space industry enterprises and agencies. ...

... Next: Unsupervised Catalog Classification Up: Object Detection and Previous: Classification of Objects . ... Multi-resolution allows for image analysis in terms of different scales. ... This approach is used for the detection (and subsequent analysis) of globular cluster systems around elliptical galaxies, and for image characterization and object trawling in large image databases. ... The applicability of this approach to object detection in large image collections has been investigated. ...