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originally posted by: Gothmog
5381 Sekhmet is the only asteroid I know of that size set to near the Earth soon. However passing near (?) the Earth is very subjective.At a distance of 63x the distance from the Earth to the Moon that is not even close. (LD - 62.8 with 1 LD=238,900 miles) at 15 million miles app.
With that number in mind the closest possible distance from Earth to Mars in miles is 33.9 million miles or just over 2x the distance. Space is huge....
originally posted by: smurfy
originally posted by: Gothmog
5381 Sekhmet is the only asteroid I know of that size set to near the Earth soon. However passing near (?) the Earth is very subjective.At a distance of 63x the distance from the Earth to the Moon that is not even close. (LD - 62.8 with 1 LD=238,900 miles) at 15 million miles app.
With that number in mind the closest possible distance from Earth to Mars in miles is 33.9 million miles or just over 2x the distance. Space is huge....
Is that new info? The NASA page says;
Close approach dist. 0.068 au
Close approach dist. 26.5 lunar distances
Close approach date 2015 May 14
echo.jpl.nasa.gov...
Still a long way out though.
originally posted by: Gothmog
That was 285331 (1999 FN53) . I posted for Sekhmet which is a mile or over in diameter . FN53 is 580 m - 1.3 km (NASA averages at 1 mile) .Still at 26.5 LDs thats still app 6 million miles. The only time to be concerned is when one passes through the "keyhole" (which is within lunar orbit) . And if the NASA site is correct , it has moved further away by 8/100ths of an AU since 1999.