Scientists Discover Surface Features on Titan . ... Scientists for the first time have made images of the surface of Saturn 's giant, haze-shrouded moon, Titan. ... Peter H. Smith of the University of Arizona Lunar and Planetary Laboratory and his team took the images with the Hubble Space Telescope during 14 observing runs between Oct. ... About three weeks before Cassini's first flyby of Titan, the spacecraft is to release the European Space Agency's Huygens Probe to parachute to Titan's surface. ...

Compilation of Group membership . HyperLeda home | Documentation | ... This compilation gives the membership of object to an association . An assosiation is defined as a group or cluster of galaxies, or more generally as a collection of objects associated through some of their attributes. ... membership defined from a hierarchical method) . ... membership defined from a percolation method) . ... membership defined from a method combining percolation and hierarchical algorithms) . ...

Armagh Observatory, 16 January 2002: . Apostolos Christou and John McFarland have made the first detection, from anywhere in Ireland, of the shadow cast by a star of an asteroid as it passed over Armagh. Such events, known as asteroidal occultations, allow a precise fix to be made on the asteroid's position in space, and also an estimate of its size and shape. ... Asteroids are mostly small, rocky objects, lying hundreds of millions of miles from the Earth between Mars and Jupiter. ...

... 2009 May 11 . Forty Thousand Meteor Origins Across the Sky . ... Explanation: Where do meteors come from? ... Many a meteor shower has been associated with a known comet , although some intriguing orphan showers do remain. ... Besides known meteor showers, eleven new showers were identified by new radiants on the sky from which meteors appear to flow. The meteor sky is ever changing, and it may be possible that new shower radiants will appear in the future. ... About APOD | ...

... Many a meteor shower has been associated with a known comet , although some intriguing orphan showers do remain. ... The resulting radiant map is shown above, with many well known meteor showers labelled by the first three letters of the home constellation. Besides known meteor showers, eleven new showers were identified by new radiants on the sky from which meteors appear to flow. The meteor sky is ever changing, and it may be possible that new shower radiants will appear in the future. ...

Allows you to specify a drift scan: motion at a constant velocity along a great circle. ... The path starts at the new object position (though the telescope actually intersects the path later, see Subtleties ). ... Note that the units are always /sec for both axes. ... The velocity along the path is 0.01 /sec. ... The path is assumed to start when you hit the Slew button (more precisely, when the TCC parses the command). However, it takes the telescope awhile to slew to meet the specified path. ...

Next: *.imh and *.qp Extensions Up: IRAF/PROS Files Previous: IRAF Image Arrays . The x-ray data are stored in QPOE files (Quick Position-Ordered Events, *.qp ) rather than image arrays. ... Note that, unlike IRAF images, QPOE files have no associated header file, and are always stored in the current directory, unless explicitly specified otherwise. Non-PROS IRAF tasks can also access QPOE data files in place of image arrays. ... rp110590.qp[pi=2:30] . ... The ROSAT PSPC qp file images are . ...

... This thread contains a step-by-step recipe to extract MOS spectra of a point-like source observed in Imaging mode and to create associated response matrices, starting from a calibrated, concatenated event list (either produced with emproc or available as PPS product; here it has the assumed file name MOS.fits ). ... The users should note that the SAS metatask xmmselect allows them to interactively define source and background regions (via ds9) and to run backscale on the fly. ...

... ESO, the European Southern Observatory . ... ESO's Governing Bodies . ... Travel to ESO Headquarters . ... Green ESO . ... Star Clusters . ... Stars@ESO . ... Paid Associates/Others . ... This video pan sequence gives a detailed view of a dark cloud where new stars are forming along with a cluster of brilliant stars that have already burst out of their dusty stellar nursery. This cloud is known as Lupus 3 and it lies about 600 light-years from Earth in the constellation of Scorpius (The Scorpion). ...

Next: CORRELATOR BOARDS Up: OBSERVING PROCEDURES Previous: Frequency Switching . As with any type of observing, it is always a good idea to run a few calibration scans at the beginning of, and during, your observing run to make sure that the telescope and receiver are behaving properly. At Arecibo this is done by performing a ``spider scan" (a pattern of four scans across an object, each separated in position angle by 45 ) on a standard calibration source. ...

... The only event-driven pieces of software were the user interface Hermes, the display server GIDS and the GDS server. ... Event-driven tasks are fundamentally different from procedural tasks. ... Using this event handling, a collection of routines has been built, which allows the programmer to construct a graphical user interface for a task. ... These are the events associated with user input keywords and one other event which is generated when a task is resumed after it was pausing. ...

... You can work in group sizes as large as 5. Each individual in that group could be assigned a particular question which would allow the group to complete the assignment in a more efficient manner. ... Off in the corner of the store was a small black box with a big sign that read . ... As the century turned, Africa began to emerge from a Dark Age stretching as far back as life on earth, into all the years that lay ahead - years of Renaissance, Enlightenment, Industry, and, if you will, Anxiety. ...

Large-scale activity in solar eruptive events of October-November 2003 by SOHO/EIT data . ... We analyze large-scale disturbances associated with extremely powerful flares and coronal mass ejections (CMEs) occurred during two passages across the solar disk of a grandiose complex of three active regions in October–November 2003 using SOHO/EIT imaging data. ... In events repeating with short time intervals, the main dimmings observed show clear homology by their form and location. ...

... Content Model: PCDATA (i.e. text and entities) . To let users enter more than one line of text, use the TEXTAREA element. ... The text up to the end tag is used to initialize the field's value. ... User agents should tolerate the same range of line terminators within the initialization text. In a typical rendering, the ROWS and COLS attributes determine the visible dimension of the field in characters. ... User agents should allow text to grow beyond these limits by scrolling as needed. ...

... You can add new associations, remove old ones and change defaults associations. ... Proposed directory for placement: /pub/os2/util/system Your name: Lewis Rosenthal Email address: lgrosenthal [at] 2rosenthals [dot] com Program contact name: (same) Program contact email: (same) Program URL: (none) Would you like the contact email address included in listings? yes Operating System/Version: OS/2 V2+ and eCS V1+ Additional requirements: WPTOOLS.DLL (included) Replaces: /pub/os2/util/system/assoed211...