Transit Of Mercury Across The Sun #3
by Nasa/goddard Space Flight Center/sdo/science Photo Library
Title
Transit Of Mercury Across The Sun #3
Artist
Nasa/goddard Space Flight Center/sdo/science Photo Library
Medium
Photograph - Photograph
Description
The transit of Mercury across the Sun on the 11th November 2019 as seen by the Helioseismic and Magnetic Imager (HMI) on NASA's Solar Dynamics Observatory (SDO). Mercury is seen as a very small black dot to the left of centre of the Sun. Transits of Mercury, as seen from Earth, occur 13 or 14 times per hundred years. This is more frequent than transits of Venus, mainly because Mercury is closer to the Sun and orbits it more rapidly. All transits of Mercury occur in May or November, the next taking place on the 13th November 2032. Transits of Venus and Mercury are used to refine the transit method technique which is used to discover exoplanets orbiting stars outside the Solar System.
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February 25th, 2021
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