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Ephemeris Calculator

Compute Comet C/2012 S1 (ISON) ephemerides for any date and time between 01 Jan 2013 and 31 Dec 2100 and display the predicted position in an interactive sky map.

Time: : UTC
Comets » Comet C/2012 S1 (ISON)

How Far is Comet C/2012 S1 (ISON) from Earth?

The distance of Comet C/2012 S1 (ISON) from Earth is currently 2,816,619,099 kilometers, equivalent to 18.827936 Astronomical Units. Light takes 2 hours, 36 minutes and 35.2300 seconds to travel from Comet C/2012 S1 (ISON) and arrive to us.

2,816,619,099
18.827936
2 hours, 36 minutes and 35.2300 seconds

The following chart shows the distance of Comet C/2012 S1 (ISON) 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.

Distance of Comet C/2012 S1 (ISON) from Earth between January 2013 and December 2100

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 C/2012 S1 (ISON) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet C/2012 S1 (ISON) to Earth

Between January 2013 and December 2100 the closest approach of Comet C/2012 S1 (ISON) to Earth happens on Fri Dec 27 2013 at a distance of 0.43060397 Astronomical Units, or 64,417,437 kilometers:

Fri Dec 27 2013
64,417,437
0.430604

NOTE: values for the closest approach are computed with a sampling interval of 1 day.

See Also

Available Resources for Comet C/2012 S1 (ISON)