... 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 . ...

... December 21, 1997 . ... Advantages are briefly discussed of gaining in spectral resolution, which is accompanied by losses in signal level, as compared with the attempts to improve the accuracy of measurement of line parameters by means of rising the S/N ratio alone with increasing the exposure time. To partially solve the problem of observations of faint objects at the BTA a new design echelle spectrometer is proposed. high resolution spectroscopy . ...

... The baseline guide star acquisition failed. ... See Operations Note 2.4) 1.2 Completed Two Sets of FOC/96 4107 (Search QSOs Suitable for Subsequent Observations) The Faint Object Camera attempted to make two separate observations of quasar 1320-106. ... See Operations Note 2.4) 1.3 Completed FOC/96 3504 (High Spatial Resolution Imaging and Spatial of Active Galactic Nuclei) The Faint Object Camera was used to attempt to make observations of active galactic nuclei 3C277.3 . ...

... 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. ...

... Development of Mini-MegaTORTORA (MMT) - a multichannel wide-field optical monitoring system with high temporal resolution . ... The MMT system is a robotic multichannel (9-objective) optical telescope with an approximate field of view of 900 square degrees and a temporal resolution of 0.1 seconds, equipped with a system of accumulation, analysis and storage of observed data. ... The list of objects and the observed material is supplemented and updated by new and archived observational data. ...

... The ELG candidates were selected from the digitized objective prism plates of the Hamburg Quasar Survey. ... The low-resolution spectra, which have 10-20 spectral points per object, already allow the detection of strong emission lines, in particular for ELGs with prominent [O III ] 4959,5007 ? ... The selection is biased for the [O III ] lines compared to the [O II ] line because of linear dispersion, favoring the detection of narrow lines near the red end of the objective prism spectra. ...

... Management of the satellite remote sensing data in environment monitoring systems. ... Systems for collection, processing, archiving and dissemination of satellite data in data centers of Russian Academy of Sciences, Russian Meteorological Agency, Russian Space Agency, Federal Agency of geodesy and cartography. Monitoring system of Russian Fishing Agency. ... Agricultural territory satellite monitoring system for Russian Ministry of Agriculture. ...