Keywords: Lowell crater p82.jpg Lowell crater on Mars This is a figure on p 82 of NASA SP-441 VIKING ORBITER VIEWS OF MARS which has the following caption <br> Lowell Crater As on the Moon and Mercury very large impacts form multiringed basins such as this 210-km diameter crater Radial lines of secondary craters are clearly visible outside the more disordered terrain close to the rim crest despite partial dissection by small channels The smooth feature in the center of the basin may be a low-lying cloud To the north of Lowell near the center of the picture is Slipher Crater 34A17-20; 52°S 81°W en wikipedia Viking program Orbiter mosaic <br>The original image is in the public domain because it is a work of the U S Government NASA <br/> Immediate source http //history nasa gov/SP-441/contents htm NASA SP-441 VIKING ORBITER VIEWS OF MARS Viking Orbiter Imaging Team 1980 http //history nasa gov/SP-441/p82 htm p82 published 1980 NASA<br/> PD-USGov Original upload log en wikipedia Lowell+crater+p82 jpg wikitable - 2014-04-28 00 32 599×626× 110449 bytes Jstuby Lowell crater on Mars This is a figure on p 82 of NASA SP-441 VIKING ORBITER VIEWS OF MARS which has the following caption <br> Lowell Crater As on the Moon and Mercury very large impacts form multiringed basin Viking mission Photos of Mars by spacecraft |