How far away is Neptune’s moon, Triton, from earth and how long would it take to get there?

| May 7, 2018

Approximately 2.7 billion miles. It would take the fastest spacecraft approximately 8 years and 9 months, or 3,193 days.
2.7 billion miles is about 4.34 billion kilometers. The fastest spacecraft ever built is New Horizons, which travels at about 15.73 kilometers per second.
4,340,000,000km##/##15.73 ##(km)/s## = 275,905,912 seconds
275,905,912 s / ##(60s)/(1min)##= 4,598,431 minutes
4,598,431 m / ##(60m)/(1hr)##=76,640 hours
76,764 hr / ##(24hr)/(1day)##=3193 days
3193 days / ##(365days)/(1year)## = 8.74 years, or about 8 years and 9 months.

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