Datoteka:South Polar Cap of Mars during Martian South summer 2000.jpg

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Opis

English: This is the south polar cap of Mars as it appeared to the Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) on April 17, 2000. The polar cap from left to right is about 420 km (260 mi) across.

Ελληνικά: Η νότια πολική περιοχή του πλανήτη Άρη. Εικόνα από τη διαστημοσυσκευή Mars Global Surveyor. Διακρίνεται εύκολα το κάλυμμα πάγου του Νότιου Πόλου, που εδώ έχει διάμετρο περίπου 420 km. Η φωτογραφία έχει ληφθεί κατά τη διάρκεια του καλοκαιρού στο Νότιο ημισφαίριο, κι έτσι η έκταση του πάγου είναι η ελάχιστη που σημειώνεται, καθώς κατά τη διάρκεια του καλοκαιριού το κάλυμμα πάγου στους πόλους του Άρη συρρικνώνεται. Κατά το χειμώνα, ολόκληρη η περιοχή που φαίνεται στη φωτογραφία σκεπάζεται με πάγο.

Original caption

This is the south polar cap of Mars as it appeared to the Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) on April 17, 2000. In winter and early spring, this entire scene would be covered by frost. In summer, the cap shrinks to its minimum size, as shown here. Even though it is summer, observations made by the Viking orbiters in the 1970s showed that the south polar cap remains cold enough that the polar frost (seen here as white) consists of carbon dioxide. Carbon dioxide freezes at temperatures around -125° C (-193° F). Mid-summer afternoon sunlight illuminates this scene from the upper left from about 11.2° above the horizon. Soon the cap will experience sunsets; by June 2000, this pole will be in autumn, and the area covered by frost will begin to grow. Winter will return to the south polar region in December 2000. The polar cap from left to right is about 420 km (260 mi) across.

Datum

29. travnja 2000.

Izvor

http://photojournal.jpl.nasa.gov/catalog/PIA02393 http://www.msss.com/mars_images/moc/4_27_00_spcap/ file

Autor

NASA/JPL/MSSS

Dopuštenje
(Naknadna uporaba ove datoteke)

	This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

This image or video was catalogued by Jet Propulsion Laboratory of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA02393.

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

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	Datum/Vrijeme	Minijatura	Dimenzije	Suradnik	Komentar
sadašnja	10:10, 2. listopad 2011.		1.690 × 1.234 (139 KB)	wikimediacommons>Badseed	{{Information \|Description={{en\|This is the south polar cap of Mars as it appeared to the Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) on April 17, 2000. The polar cap from left to right is about 420 km (260 mi) across.}} {{el\|Η νότια πολ

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Marsove polarne ledene kape

Datoteka:South Polar Cap of Mars during Martian South summer 2000.jpg

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Opisi

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motiv

status autorskog prava

javno vlasništvo

nastanak

29. travnja 2000

vrsta medija

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