... Dark Terrain on Saturn s Iapetus . ... 3.01.2006 . ... Iapetus, the third largest moon of Saturn , was inspected again as the Saturn-orbiting robot Cassini spacecraft swooped past the enigmatic world again late last year. The dark material covers most of the surface visible in the above image , while the small portion near the top that appears almost white is of a color and reflectance more typical of Saturn's other moons. ... January 2006 . ... 2005 2006 . ... Publications with keywords: Saturn . ...

... Editor's choices for the most educational Astronomy Pictures of the Day about Saturn's Moons: . ... Explanation: Titan is one of the strangest places in our Solar System . ... APOD: 2005 March 8 - Crater on Mimas . ... Explanation: The surface of Saturn 's moon Tethys is riddled with icy cliffs and craters. ... At the bottom of many craters appears some sort of unknown light-colored substance, in contrast to the unknown dark substance that appears at the bottom of Saturn's moon Hyperion . ... Index ...

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... Cover Story: Chandra Delivers . ... Images Courtesy of NASA/SAO/CXC/Giuseppina Fabbiano et al. and NASA/CXC/SAO. ... But whatever these objects are, we weren?t able to see them at all with any instrument before the launch of NASA?s Chandra X-ray Observatory in July 1999. ... NASA promised that the Chandra mission would be tantamount to finally seeing the universe through a good pair of X-ray eyeglasses. ...

... Tonight's Sky . ... The Magazine . ... Observing . ... 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 . ... Bright planets meet at dusk . ... Astronomy magazine subscribers can read the full article for free. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

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. ...

... UA SCIENTIST & TEAM DISCOVER SURFACE FEATURES COVER TITAN (Science contacts: Peter H. Smith, (602) 621-2725; Mark Lemmon, (602) 621-1485; UA Lunar and Planetary Laboratory) . Scientists for the first time have made images of the surface of Saturn 's giant, haze-shrouded moon, Titan. ... 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. ... Upper left: hemisphere facing Saturn. ...

. E. Swedenborg (from "Heavenly City") . List of scientific publications . List of preprints in the ArXiv . Lectures etc. (*.ppt) . My CV . Photos . Old version of the HomePage . Our paper . on the cover of . A . Phone: +7 (495) 939-50-06 . Review (in Russian); Poster on CNOC3: Gould Belt; Poster for SN1604: kicks.

The night sky brightness, together with number of clear nights, seeing, transparency, photometric stability and humidity, are some of the most important parameters that qualify a site for front-line ground--based astronomy. ... Night sky at ESO-Paranal (Chile). ... Night sky brightness data . ... UBVRI night sky brightness at ESO-Paranal during sunspot maximum (A 2003, PDF) . ... The Dancing Sky: six years of night sky observations at Cerro Paranal (Starlight 2007 conference proceedings, PDF) . ...

... They cover a period of 4 days in which the Supernova continues to rise in brightness (what astronomers call magntiude). ... First Image Taken on March 11 at 8:22 UT. Second Image Taken on March 12 at 8:52 UT. ... The supernova is the same brightness as in the previous image taken 2 hours ago . ... This image, taken 24 hours after the previous image, shows the supernova to be another 0.21mag (or about 25%) brighter. ... Hopefully the images do show that the brightness of the Supernova is changing. ...

HST in the Media . Newspapers, Magazines, etc. ... Media . ... New York Times . ... Daily Newspaper . ... Monthly Magazine . ... Apr. ... Magazine . ... Weekly News Magazine . ... May 13, 2001 . ... Science News . ... 27, 2001 . ... From Light to Darkness: Astronomy?s New Universe . ... Weekly Science Journal . ... A New Baby Picture of the Southern Sky . ... Dallas Morning News . ... New Scientist . ... Weekly World News . ... News" Weekly . ...

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

Graca Rocha's publications . The NASA ADS Abstracts Service database can be searched for an up to date lists of my papers: for G. Rocha (gives an incomplete list of my publications which use G. Rocha), to complete the list Graca Rocha (which now gives an incomplete list of my publications under the name Graca Rocha) both now cover the vast majority of my papers. ... Click here for a more complete list of my publications (including papers in preparation) . Last updated: 2005 June. home | ...