... 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 . ...

Next: The APM selected sample Up: Second priority candidates Previous: Second priority candidates . From the random selected subsample of second priority candidates we observed twenty six objects during the 6-m telescope runs (mainly those with R.A.< 11 h ) along with the observations of first priority targets. Altogether we found 12 emission-line objects: one appeared to be a QSO with z =3.15, and the rest are various types of ELGs. ... One object is an absorption-line galaxy. ...

We present ultraviolet, optical, near-infrared, Spitzer mid-infrared, and radio images of 14 radio-selected objects in M33. ... We have detected the majority of cluster candidates in M33 at all wavelengths. ... These results suggest that 11 of the 14 radio-selected objects are optically visible young star clusters with a surrounding H II region, that 2 are background objects, possibly active galactic nuclei (AGNs), and that 1 is a Wolf-Rayet star with a surrounding H II region. ...

... A file upload element on an HTML form. ... JavaScript 1.1: added type property . ... The HTML INPUT tag, with "file" as the value of the TYPE attribute. For a given form, the JavaScript runtime engine creates appropriate FileUpload objects and puts these objects in the elements array of the corresponding Form object. ... form . ... For all FileUpload objects, the value of the type property is "file" . ... Use the value property to obtain the file name that the user typed into a FileUpload object. ...

slitless -- Extract a spectrum from a direct/GRISM image pair slitless image grism output PARAMETERS . ... A two dimensional direct image to be used to select an object. grism . A two dimensional GRISM image containing slitless spectra of objects present in the direct image. output . ... Toggle whether or not a background estimate is subtracted from the extracted object spectrum. mingood = INDEF . Pixels of the grism image with values smaller than this are ignored. maxgood = INDEF . ...

... The numbers of three types of compact binaries containing accreting NSs and BHs, which are most interesting from the point of view of their observational appearances, have been calculated as a function of time: i) X-ray transient source containing a NS in an eccentric orbit around a main sequence Be-star (the observed prototype: A0535+26), ii) BH The evolution of the selected types of X-ray binaries during the first 10 million years after the starburst onset is presented in Fig. ...

Shakht N.A., A.A.Afanas'eva, D.L. Gorshanov, E. V.Poliakow (Pulkovo Observatory, Russia): Title: Long-term photographic observations for selected objects of Pulkovo program: measurements and results. Abstract: The selected objects, observed at Pulkovo observatory during long time period have been of intense interest among astronomers, and now they are the most important aims for space investigations. ... Now we believe, that they also are interesting for observation during space mission Gaia. ...

... Observing . ... Observing springtime deep-sky objects with a large telescope . Springtime observing for small telescopes . ... Astronomy magazine Editor David J. Eicher shares 10 of his favorite springtime deep-sky objects, including the NGC 3190 galaxy group, 3C 273, and NGC 3242. ... In this video, Astronomy magazine Editor David J. Eicher discusses deep-sky objects in the spring sky you can see with a 12-inch or larger telescope. ... Get instant access to subscriber content on Astronomy.com! ...

All links are to papers in PDF format, unless otherwise indicated.

... Hughes STX/COSSC NASA/GSFC, Greenbelt, MD 20771 . ... The exploration of hypertextual data presentation at the COSSC was facilitated by the creation of tables of data, in electronic form, which describe the BATSE and EGRET datasets available in the Compton Observatory archive. ... As our store of data continues to grow, we will continue to explore new and novel ways in which hypertext allows the data in the COSSC archive to be presented and selected. 56 kB PostScript reprint . ...

... ASAP contains flexible data selection. Data can be selected based on IF, beam, polarisation, scan number as well as values such as Tsys. ... Selection is based on a selector object. This object is created and various selection functions applied to it ( set_ifs , set_beams etc). The selection object then must be applied to a scantable using the set_selection function. ... The selection can then be reset and all spectra are visible. ... Select by source name. ... Select data based on Tsys. ...

... There is an opportunity to perform O-C calculations for objects which are absent in the data base of the package. Such objects can be described by orbital elements or by initial coordinates and velocities. ... On pressing Edit file button user has a possibility to look through the list of object elements or their coordinates and velocities to add or to change it. ... For example, the designations of objects in the list can occupy the last position in each line. ...

... were entered in the atlas. ... In so doing lines were selected which yielded radial velocities close to the symbiotic velocity of MWC 560 (+35 km/s). ... The visible spectrum of MWC 560 is poor in absorption lines especially near the brightness maximum. In our atlas are visible only the blue-shifted components of , , NaI and FeII(42), interstellar lines NaI, a few diffuse interstellar bands (DIB) and telluric lines of and and, at length, traces of the spectra of the M giant. ...

Name Last modified Size Description . Parent Directory - 20110412/ 2013-04-22 17:18 - 20130412/ 2013-04-22 17:07 - . Apache/2.4.6 (Linux/SUSE) Server at www.astro.louisville.edu Port 80

... Science . ... Science Users Information > Science Activities > VLT/VLTI Science Verification > VIMOS . ... Observing with ESO Telescopes . ... Data Handling and Products . ... Science Data Products Forum . ... ESO Data . ... ESO Data Access Policy . ... VLT/VLTI Science Verification . ... VISTA Science Verification . APEX Science Verification . ... ESO Science Newsletter . ... A VIMOS-IFU Study of Early-Type Galaxies . ... NGC 1427 (03h42m19.4s -35d23m34s) . ... Program to be observed . ...

... In one situation, we can use light from quasars to probe the material between us and them because that light may pass through one or more galaxies or gas clouds on its way to us. The gas inside the galaxies or the intergalactic clouds acts then as a filter, absorbing selected wavelengths from the quasar light. ... Light from a quasar must pass through clouds of gas and even faint galaxies -- each leaving its imprint on the light -- before we receive it here on Earth. ... Gravitational lensing . ...

User catalogs allow you enter positions for your objects into a file, to save time during an observing run. ... Before diving into the details, here is an example: # default coordinate system and object # (these are the standard defaults, so if you like them you can omit this line) CSys=FK5; Date =2000; RotType= Object ; RotAng=0 # some random objects # Name Pos1 (e.g. RA) Pos2 (e.g. Dec) Options in keyword-value format NGC6543 rot 90 ... Object Data . Defaults . Catalog Options . ...

Stellarium 0.12.3 . ... Classes . ... Quasar Class Reference . ... Quasar (const QVariantMap &map) . ... Get a QVariantMap which describes the Quasar . ... getSelectPriority (const StelCore *core) const . ... getInfoString (const StelCore *core, const InfoStringGroup &flags) const . ... getVMagnitude (const StelCore *core, bool withExtinction=false) const . ... getAngularSize (const StelCore *core) const . ... getPositionInfoString (const StelCore *core, const InfoStringGroup &flags) const . ...

... A1848 Date Received: 2004-Oct-01 07:36:52 Technical Page Proposal Type: Regular General Category: Astronomy Sub-Category: Spectroscopy Observation Category: Extragalactic Total Time Requested: 15 Hours Proposal Title: Investigating the ISM in SCUBA selected sources ABSTRACT: A number of sources in our SCUBA blank eld survey have been identi ed with low redshift spiral galaxies from z=0.074 -0.176. This is unusual for submm selected objects - generally believed to be mergers at high redshifts. ...