Mercury Transit Observed at Cerro Tololo Inter-American Observatory

Saturday, November 30, 2019 - 12:20 in Astronomy & Space

About 13 times per century, fleeting Mercury can be seen passing directly in front of the Sun in what is called a transit. The most recent Mercury transit occurred on 11 November 11, 2019. While the path of Mercury across the Sun in fact traced a straight line, in this image the path appears to loop backwards due to an effect called field rotation as the telescope and camera track across the sky.

Read the whole article on Newswise - Scinews

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