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Ephemeris Calculator
Compute Mercury ephemerides for any date and time between 01 Jan 1600 and 31 Dec 2499 and display the predicted position in an interactive sky map.
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How Far is Mercury from Earth?
The distance of Mercury from Earth is currently 185,967,996 kilometers, equivalent to 1.243119 Astronomical Units. Light takes 10 minutes and 20.3225 seconds to travel from Mercury and arrive to us.
The following chart shows the distance of Mercury from Earth as a function of time. In the chart the distance data is measured in Astronomical Units and sampled with an interval of 1 day.
The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of Mercury from Earth is also available as a real time updated value in the Live Position and Data Tracker.
Closest approach of Mercury to Earth
Between January 1600 and December 2499 the closest approach of Mercury to Earth happens on Mon Jun 6 2416 at a distance of 0.54887587 Astronomical Units, or 82,110,662 kilometers:
NOTE: values for the closest approach are computed with a sampling interval of 1 day.