File:Cerberus Hemisphere.jpg

Mosaic of the Cerberus hemisphere of Mars projected into point perspective, a view similar to that which one would see from a spacecraft. The viewer's distance is 2,000 kilometers above the surface of the planet. The mosaic is composed of 104 Viking Orbiter Images. The images were acquired on February 11, 1980 during orbit 1,323 of Viking Orbiter 1. At that time, it was early northern summer on Mars (aerocentric solar longitude 65 degrees) and the sub-solar declination was 22.6 degrees N. The center of this image is at latitude 12 degrees and longitude 190 degrees. There are thin white clouds dispersed over the northern hemisphere.

For the GIF formatted files, color variations have been enhanced by a factor of two. The global brightness variation due to sun angle reduced by spacial filtering. Other prominent features in this image include the large dark area left of the image center known as Cerberus. The Elysium volcanic construct shows as a bright yellow area north of Cerberus, with several well defined channels radiating from the flanks of this volcano. Just to the right of the center of the image is the crater Tettit, with its peculiar dark "tail" extending to the southwest. The arcuate markings on the upper right of the image are in the south-west Amazonis plains and are thought to be extended sand drifts. The three bright spots north of Cerberus, upper left of image, are volcanoes partially veiled by thin clouds.

Image Processing by Jody Swann/Tammy Becker/Alfred McEwen, using the PICS (Planetary Image Cartography System) image processing system developed at the U.S. Geological Survey in Flagstaff, Arizona.

	本作品由NASA創作，屬於公有領域。根據NASA的版權政策：“NASA的創作除非另有聲明否則不受版權保護。”（參見：Template:PD-USGov/zh，NASA版權政策或JPL圖像使用政策）
	警告: 使用NASA的logo，徽標等受到美國法律14 CFR 1221的限制。 NASA網站還提供大量來自蘇聯/俄羅斯航天機構，以及其他非美國的太空機構的圖像。這些圖像不一定屬於公有領域。 根據哈勃空間望遠鏡的數據制作的素材，如果不是明確聲明由STScI提供，則可能受到版權保護。[1] 參看{{PD-Hubble}}和{{Cc-Hubble}}或{{Spacetelescope.org}}。 SOHO (ESA & NASA)聯合項目的探測器所創作的所有內容受到著作權保護，並且進行非教育性質的商業應用需要授權。[2] 每日一天文圖（APOD）網站的特色圖片可能受到著作權保護。[3]