Discover the cosmos! ... 2005 December 5 . Fountains Discovered on Saturn's Enceladus . Credit: Cassini Imaging Team , SSI , JPL , ESA , NASA . Explanation: Fountains of ice shoot out from Saturn's moon Enceladus. Clear discovery images of the fountains were made using observations from the robot Cassini spacecraft currently orbiting Saturn . During a recent pass, Cassini was programmed to look back toward the Sun where Enceladus would appear as a thin crescent . ... About APOD | ...

... Ice Fountains Discovered on Saturns Enceladus . ... Credit: Cassini Imaging Team , SSI , JPL , ESA , NASA Explanation: Fountains of ice shoot out from Saturn's moon Enceladus. Clear discovery images of the fountains were made using observations from the robot Cassini spacecraft currently orbiting Saturn . During a recent pass, Cassini was programmed to look back toward the Sun where Enceladus would appear as a thin crescent . ... Publications with keywords: Enceladus - Saturn . ...

... By default the task will reduce the effective area produced in the ARF if the source area contains bad pixels/columns or contains area which lies outside the CCD boundaries. ... Although the correction for point sources is quite good the extended source correction assumes a uniform surface brightness of the source. ... There is currently no way of performing an accurate correction for chip gaps and bad pixels within extended source regions within arfgen . ...

... casa::WCCompound . ... WCCompound (const ImageRegion &region1, const ImageRegion &region2) . ... WCCompound (const PtrBlock < const ImageRegion * > &regions) . WCCompound ( Bool takeOver, const PtrBlock < const WCRegion * > &regions) . ... The image regions have to contain WCRegion objects, otherwise an exception is thrown. casa::WCCompound::WCCompound . ... const PtrBlock < const WCRegion * > & casa::WCCompound::regions . ... PtrBlock <const WCRegion *> casa::WCCompound::itsRegions [private] . ...

... Massive stars, having 10-150 masses of the Sun, with metallicities Z tens to hundreds times less than that of the Sun (Zo), are the main regulators of the galaxy formation and evolution processes in the early Universe. ... In this galaxy, using the 6 m BTA telescope, a new massive blue variable star with high luminosity (>=10 5 Sun's luminocities in visible light) was found. As far as its properties are concerned, this star falls into an LBV (Luminous Blue Variable) class of stars. ...

... Scientists from G. I. Budker Institute of Nuclear Physics- Syberian Branch of the Russian Academy of Science, Novosibirsk State University, Novosibirsk State Technical University, Samara State Aerospace University (SSAU) and Image Processing Systems Institute (IPSI) of the Russian Academy of Science, became the first people in the world obtained terahertz non-diffractive twisted Bessel beams and used them for the first time the formation of surface electromagnetic waves on the metal surface. ...

Instrument Science Report WFC3 2008-07 WFC3 TV3 Testing: UVIS Channel Glints Thomas M. Brown Apr 14, 2008 ABSTRACT In the previous thermal vacuum (TV) campaign of 2007, it was discovered that the UVIS channel was subject to strong glints (containing ~1% to 30% of the source energy) due to reflections between the CCD surface and the CCD housing. ... These glints contained anywhere from 1% to 30% of the source energy and spanned thousands of pixels. ... 2001, ISR WFC3 2001-17). ...

Galaxies are diffuse objects which are imaged against a background of finite brightness and noise. Galaxies which have the maximum contrast with respect to this background are the ones that are first discovered. ... These galaxies have been missed to date but active surveys for them are underway. ... In this page we present several examples of these newly discovered Low Surface Brightness galaxies as well as examples of high surface brightness galaxies. ...

... 2 Columns At the present time, the REGION table is de ned for a two-dimensional space. ... ROTANG (rotation angle): for rotated elements; like X and Y, this column needs to contain vectors of suфcient length. ... Table 1: REGION Table SHAPEs SHAPE X Y R ROTANG Point X Y Circle Xcen Ycen R Ellipse Xcen Ycen Rmaj ; Rmin Angle Annulus Xcen Ycen Rin ; Rout Elliptannulus Xcen Ycen Rinmaj ; Rinmin ; Angin ; Routmaj ; Routmin Angout Box Xcen Ycen Xsize ; Ysize Rotbox Xcen ...

Enceladus . ... Enceladus [en-SELL-ah-dus] is one of the innermost moons of Saturn. ... Parts of Enceladus shows craters no larger than 35 km in diameter. ... This Voyager 2 mosaic of Enceladus was made from images taken through the clear, violet and green filters on August 25, 1981, from a distance of 119,000 kilometers (74,000 miles). ... This image was created by projecting a digital map of Enceladus onto an orthographic view and then replacing the color channels by low resoultion color images. ...

... It contains: electromagnetic radiation (ph