Fișier:PIA18316-SaturnMoon-Rhea-Cassini-20150210.jpg

Mărimea acestei previzualizări: 600 × 600 pixeli. Alte rezoluții: 240 × 240 pixeli | 480 × 480 pixeli | 1.020 × 1.020 pixeli.

Mărește rezoluția imaginii ‎(1.020 × 1.020 pixeli, mărime fișier: 143 KB, tip MIME: image/jpeg)

Acest fișier se află la Wikimedia Commons. Consultați pagina sa descriptivă acolo.

Descriere fișier

Descriere	English: PIA18316: Rhea's Horizon http://photojournal.jpl.nasa.gov/catalog/PIA18316 Rhea's horizon is slightly irregular and battered by craters, so thoughts inevitably turn towards the forces that shape these icy worlds. This image is from NASA's Cassini spacecraft. Gazing off toward the horizon is thought-provoking no matter what body's horizon it is. Rhea's horizon is slightly irregular and battered by craters, so thoughts inevitably turn towards the forces that shape these icy worlds. The surface of Rhea (949 miles or 1527 kilometers across) has been sculpted largely by impact cratering, each crater a reminder of a collision sometime in the moon's history. On more geologically active worlds like Earth, the craters would be erased by erosion, volcanoes or tectonics. But on quieter worlds like Rhea, the craters remain until they are disrupted or covered up by the ejecta of a subsequent impact. Lit terrain seen here is on the trailing hemisphere of Rhea. North on Rhea is up and rotated 12 degrees to the right. In this view, Cassini was at a subspacecraft latitude of 9 degrees North. The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Feb. 10, 2015. The view was obtained at a distance of approximately 35,000 miles (56,000 kilometers) from Rhea and at a Sun-Rhea-spacecraft, or phase, angle of 76 degrees. Image scale is 1,100 feet (330 meters) per pixel. The Cassini mission is a cooperative project of NASA, ESA (the European Space Agency) and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging operations center is based at the Space Science Institute in Boulder, Colorado. For more information about the Cassini-Huygens mission visit http://saturn.jpl.nasa.gov and http://www.nasa.gov/cassini. The Cassini imaging team homepage is at http://ciclops.org.
Dată	10 februarie 2015
Sursă	http://photojournal.jpl.nasa.gov/jpeg/PIA18316.jpg
Autor	NASA/JPL-Caltech/Space Science Institute

This image or video was catalogued by Jet Propulsion Laboratory of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA18316.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

Other languages:

العربية ∙ беларуская (тарашкевіца) ∙ български ∙ català ∙ čeština ∙ dansk ∙ Deutsch ∙ English ∙ español ∙ فارسی ∙ français ∙ galego ∙ magyar ∙ հայերեն ∙ Bahasa Indonesia ∙ italiano ∙ 日本語 ∙ македонски ∙ മലയാളം ∙ Nederlands ∙ polski ∙ português ∙ русский ∙ sicilianu ∙ slovenščina ∙ Türkçe ∙ українська ∙ 简体中文 ∙ 繁體中文 ∙ +/−

Licențiere

	Acest fişier este în domeniul public fiindcă a fost creat de NASA. Politica drepturilor de autor a NASA spune că „Materialul NASA nu este protejat de dreptul de autor atâta timp cât nu se precizează altfel”. (NASA copyright policy page sau JPL Image Use Policy).
	Atenţie: Folosirea logo-urilor NASA, insignelor şi emblemelor adiacente, este restricţionată conform legii Statelor Unite ale Americii 14 CFR 1221. Site-ul NASA deţine un număr mare de poze din Programul spaţial sovietic şi alte agenţii spaţiale non-americane. Acestea pot să nu aparţină domeniului public. Materialele luate de Telescopul spaţial Hubble pot avea drepturi de autor diferite dacă nu vin explicit de la Institutul Ştiinţific al Telescopului Spaţial (STScl). Detalii. Toate materialele create de sonda SOHO se află sub incidenţa drepturilor de autor şi necesită permisiune pentru folosirea comercială non-educaţională. Detalii. Imaginile ce au fost publicate pe site-ul Astronomy Picture of the Day (APOD) pot fi restricţionate de drepturile de autor. Detalii.