... Fotografo : COBE . -Referenze : NASA, COBE, DMR, Four-Year Sky Map . ... by comparison with an exposure of the same sky field before the explosion, made with ... 00 is a colour composite image of the sky field around the position of the gamma-ray ...
... measurement error reported after an integration; n = number of exposures in Comments on GOSPEC performance 7 integration; t int = integration time [sec]; I 0 = true sky + instrumental background = measured sky [cts s 01 ]; and I s = true source [cts s 01 ...
... The latest release of the Swift-XRT cluster survey (SWXCS) has a sky coverage ranging from total 40 deg 2 to 1 deg 2 at a flux ... Fig 1: Distribution on the sky (Aitoff projection) of the Gamma Ray Burst fields in the XRT archive as of April 2010. ...
... Mappe del cielo a tempi diversi si possono ottenere gratuitamente al sito web: http://www.arcetri.astro.it/po/sky_maps/maps.html Sole: La seguente tabella riporta l'ora alla quale il Sole sorge e tramonta ogni due settimane nel periodo Gennaio - Febbraio. ...
... Caption to ESO PR Photo 30a/99 : The sky field around the 17-mag variable stellar ... unsual object and served to centre the telescope on the corresponding sky position ...
... The meteors in our night sky are visible evidence of bodies of this type burning up high in the atmosphere. ... On October 9, 1992, a fireball was seen streaking across the sky all the way from Kentucky to New York. ...
... By turns hot embers from her entrails fly, . And flakes of mountain flame that arch the sky. -Virgil's Aeneid . Terrestrial Volcanoes (This Page) . ...