Planet Mars, As Seen by the 100 Inch Telescope at Mount Wilson Observatory
September 11, 1956
| Credit | The Carnegie Institution for Science |
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Astronomers took these images of planet Mars through the 100-inch telescope at the Mount Wilson Observatory in California. They used a red filter to take images a, b, and c, to show surface features and the effect of Mars' rotation. They used a blue filter for image d, which shows the atmosphere only.
