* Astronomy

The 670 - 1500 metre wide asteroid 2013 WT67 will make a close pass (16.1 lunar distances, 0.0412 AU), travelling at 11.68 km/second, to the Earth-Moon system on the 17th August 2014 @ 20:19 UT ±00:01. 

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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).

Ephemeris

Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     Mag
2014 08 16    17 29.83   -41 23.7    0.0431   1.035   119.5    58.4    13.2
2014 08 17    17 13.22   -33 06.0    0.0416   1.031   115.8    62.1    13.3
2014 08 18    16 59.03   -24 19.0    0.0413   1.028   111.3    66.5    13.4
2014 08 19    16 46.85   -15 31.9    0.0420   1.025   106.4    71.3    13.6
2014 08 20    16 36.35   -07 12.7    0.0437   1.021   101.4    76.2    13.8
2014 08 21    16 27.23   +00 19.6    0.0464   1.018    96.7    80.7    14.1
2014 08 22    16 19.26   +06 56.3    0.0498   1.015    92.5    84.7    14.4
2014 08 23    16 12.23   +12 37.6    0.0538   1.012    88.8    88.2    14.7
2014 08 24    16 06.00   +17 28.1    0.0583   1.008    85.6    91.1    15.0
2014 08 25    16 00.42   +21 34.8    0.0632   1.005    82.8    93.6    15.2
2014 08 26    15 55.40   +25 04.6    0.0684   1.002    80.5    95.6    15.5
2014 08 27    15 50.84   +28 03.9    0.0738   0.998    78.5    97.4    15.7
2014 08 28    15 46.68   +30 38.0    0.0793   0.995    76.7    98.8    16.0
2014 08 29    15 42.85   +32 51.2    0.0850   0.992    75.2   100.0    16.2
2014 08 30    15 39.30   +34 47.3    0.0908   0.988    73.9   101.0    16.3
2014 08 31    15 35.98   +36 29.0    0.0967   0.985    72.7   101.9    16.5