... 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 . ...

... This chapter documents all the JavaScript objects, along with their methods and properties. ... Full entries for each object appear in alphabetical order; properties and functions not associated with any object appear in Chapter 2, "Top-Level Properties and Functions." ... Tables included in the description of each object summarize the object's methods and properties. Full entries for an object's methods and properties appear in alphabetical order after the object's entry. ...

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 . ...

This is a tabulation of interstellar dust scattering properties dertermined from observations of various astrophysical objects (eg., ... Almost all studies in this field aim to determine the single scattering albedo (a) and scattering phase function asymmetry (g = <cos( )>) as different wavelengths. ... Plot Details . ... Plot details links to a page describing the studies included in the plot, the radiative transfer model used in each study, and an ascii listing of data plotted. ...

Next: Analysis Tools for Nebular Emission Lines . ... Extracting spectra from a large number of NICMOS grism images requires a convenient interactive tool which allows a user to manipulate direct/grism image pairs. ... The direct image is used to locate objects of interest, to find the position of the appropriate spectra in the grism image, to determine the optimal extraction technique to use, and to calibrate the wavelength range of the extracted spectra. ... Figure 1: The NICMOSlook User Interface . ...

... The sky distribution of the BCGs from the HSS sample is shown in Fig. 6 together with BCGs from the SBS and Case surveys (Izotov et al. [ 1993b ]; Pustilnik et al. ... First, we compare the apparent magnitude distributions of the three samples. ... The similar behaviour of the faint end of the apparent magnitude distributions infers that the Northern BCG sample may have a similar completeness down to this limiting magnitude. ...

... Tonight's Sky . ... The Magazine . ... Observing . ... 50 Weirdest Objects . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Dave's Universe . ... Weird Object: Our Accelerating Universe . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... 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! . ...

... 7.1 Introduction to media types . ... 7.3 Recognized media types . 7.3.1 Media groups One of the most important features of style sheets is that they specify how a document is to be presented on different media: on the screen, on paper, with a speech synthesizer, with a braille device, etc. Certain CSS properties are only designed for certain media (e.g., the 'cue-before' property for aural user agents). ... For example, the 'font-size' property is useful both for screen and print media. ...

Optical characteristics of non-spherical scatterers . ... A list of reviews (under preparation) and links to the databases of Hovenier's and Gustafson's groups on the visible/infrared and microwave light scattering experiments, respectively. ... Light scattering codes . ... Benchmarks in optical properties . Tables of different light scattering characteristics carefully calculated by different codes (methods). Dependence of optical properties on scatterer parameters . ...

Protective footwear (referred to as safety toe shoes or boots) incorporate protective toe boxes made of steel or synthetic material to protect the feet from heavy falling or rolling objects. ... Appropriate safety toe footwear will be worn by employees while engaged in the handling or moving of objects where the possibility of foot damage is present. ... Appropriate protective footwear will be worn by employees when engaged in metals cleaning/coating or machinery operations. ...

Planetology from the cm to the nm wavelength ranges: Arecibo Observatory, ALMA and IAA-CSIC R. Rodrigo1/L.M. Lara (IAA-CSIC) Granada (Spain) 1 Visiting Professor at Arecibo Observatory and at Universidad Metropolitana de Puerto Rico Luisa M. Lara Minor bodies and minor planets with ALMA § Continuum ­ Asteroids · Map of the shape, large-scale surface features, and surface temperature distributions of the 700 largest objects in the main asteroid belt and the hundred largest Jupiter Trojans. ...

... Science User Portal . ... ESO, the European Southern Observatory . ... ESO's Governing Bodies . ... Travel and Contacts . Travel to ESO Headquarters . ... Travel to E-ELT Armazones . ... ESO Acronyms . ... Survey Telescopes . ... Exoplanets . ... Star Clusters . ... Stars@ESO . ... ESO Science Newsletter . ... ESO 3.6-metre telescope . ... MPG/ESO 2.2-metre telescope . ... TRAnsiting Planets and PlanetesImals Small Telescope . ... ESO 1-metre Schmidt telescope . ... ESO Science Outreach Network . ...

Stellarium 0.12.3 . ... Classes . ... ClassљList . ... MeteorMgr Class Reference . Simulates a meteor shower. ... intљ . getZHR (void) . ... setFlagShow (bool b) . ... getFlagShow (void) const . ... MeteorMgr (int zhr, int maxv) . ... virtual voidљ . ... virtual boolљ . ... the initial value of the maximum meteor velocity. virtual void MeteorMgr::draw . ... Get the current zenith hourly rate. virtual void MeteorMgr::init . ... Set the zenith hourly rate. virtual void MeteorMgr::update . ...

Download Izmccd (~2.7 MB). ... a) a choice of the best mode of measurements of stars and objects ("Properties/Measurement"), . b) a choice of reference stars. ... 1) necessity of presence on an image of a plenty of stars (we recommend to apply this mode, if on the frame of reference stars is more 100) . ... Sx and Sy depend from residuals at all reference stars (reference stars are marked by blue color). ... These residuals are the image of the star a minus function of a profile for each pixel. ...

Physical Properties and Internal Structure of Near-Earth Objects . ... The review contains the most recent data on near-Earth objects such as their sizes and densities, rotation and shapes, taxonomy and mineralogy, optical properties and structure of their surfaces, binary systems among the NEOs and internal structure of asteroids and comets constituted the NEO population. ... The European space mission ISHTAR, NEO 4660 Nereus, NEO 5797 Bivoj. ...

... CentralProcessor 0.11 documentation . ... The Central Processor Manager is the local monitoring and control agent for the Central Processor sub-system. ... At the moment the Central Processor Manager only controls the acquisition phase; that is, it only controls the ingest pipeline. ... In addition to the CP manager specific parameters, any parameters that begin with ice_properties are passed directly to the ICE Communicator during initialisation. ... string . ... Central Processor Manager . ...

... During the analysis of the surveys carried out on RATAN-600, it was found that almost one fifth of the detected sources shows significant radio flux variations. ... We used the data from "Cold" radio surveys carried out with RATAN-600 in 1980-1994 to search for radio sources with significant flux variability. ... On possibility of detection of variable sources using the data of Cold surveys carried out on RATAN-600. ... Detection of Variable Sources Using the Data of "Cold" Surveys. ...

... Translate Abstract . ... Structure and properties of IRC+10216 . ... AA(Stockholm Observatory, SE--133 36 Saltsj baden, Sweden), AB(Special Astrophysical Observatory, Nizhnij Arkhyz, Karachaevo-Cherkesia, 357147, Russia), AC(Max-Planck-Insitut f r Radioastronomie, Auf dem H gel 69, D--53121 Bonn, Germany), AD(Max-Planck-Insitut f r Radioastronomie, Auf dem H gel 69, D--53121 Bonn, Germany), AE(Max-Planck-Insitut f r Radioastronomie, Auf dem H gel 69, D--53121 Bonn, Germany) . ... Abstract Text . ...

... champ name : Source ID in the format explained in the Definitions section. ra : RA in decimal degrees. ... pos_error : Source count extraction radius in arcseconds. netB : net counts in B-band. See Definitions section. error_netB : error of net counts in B-band. see Definitions section. netS : S-band net counts, defined analogously to netB . ... See Definitions section. C21 : X-ray color. ... C32 : X-ray color. See Definitions section. rateB : B-band count rate in ksec. ...