NASAのインスタグラム(nasagoddard) - 5月11日 04時29分

Mercury Transit (Composite Image)

On May 9, 2016, Mercury passed directly between the sun and Earth. This event – which happens about 13 times each century – is called a transit. NASA’s Solar Dynamics Observatory, or SDO, studies the sun 24/7 and captured the entire seven-and-a-half-hour event. This composite image of Mercury’s journey across the sun was created with visible-light images from the Helioseismic and Magnetic Imager on SDO.

Image Credit: NASA's Goddard Space Flight Center/SDO/Genna Duberstein #mercurytransit #nasagoddard #mercury #sun #earth

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