Voyager 2 NASA System Clock Simulator

Distance From Earth

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Spacecraft Velocity

94,250 km/hr

58,564 mph

NASA Eyes displayed speed value used for the clock-based estimate.

Astronomical Units

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1 AU = 149,597,870.7 km = 92,955,807.3 miles.

One-Way Radio Signal Time

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Calculated from distance using speed of light with millisecond precision.

System Clock Estimate

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Each browser start reads your device clock and estimates elapsed time since the NASA baseline.

Mode Demo Speed

Mission Timeline

1977

Voyager 2 launched.

1979

Jupiter flyby.

1981

Saturn flyby.

1986

Uranus flyby.

1989

Neptune flyby.

2018

Entered interstellar space.

NASA

Baseline used here: 21.33 billion km and about 19 hr signal delay.