* Astronomy

The 9 - 21 metre wide asteroid 2013 AB4 will make a close pass (33.8 lunar distances, 0.0869 AU), travelling at 11.39 km/second, to the Earth-Moon system on the 16th July 2014 @ 12:18 UT ±10:39. 

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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 07 15    12 34 20.2 -09 43 27   0.08772 1.0042    79.5    95.6    25.4
2014 07 16    12 48 05.8 -12 23 40   0.08723 1.0091    82.7    92.3    25.3
2014 07 17    13 02 12.1 -15 02 01   0.08722 1.0140    86.0    89.1    25.2
2014 07 18    13 16 34.5 -17 36 11   0.08768 1.0189    89.2    85.8    25.1
2014 07 19    13 31 07.7 -20 04 03   0.08861 1.0238    92.4    82.6    25.0
2014 07 20    13 45 45.8 -22 23 46   0.08998 1.0286    95.5    79.5    24.9
2014 07 21    14 00 23.0 -24 33 56   0.09179 1.0335    98.4    76.5    24.9
2014 07 22    14 14 53.1 -26 33 32   0.09400 1.0384   101.2    73.7    24.8
2014 07 23    14 29 10.6 -28 22 05   0.09659 1.0433   103.8    71.0    24.8
2014 07 24    14 43 10.2 -29 59 28   0.09954 1.0481   106.3    68.5    24.8
2014 07 25    14 56 47.6 -31 25 55   0.1028  1.0530   108.5    66.2    24.8
2014 07 26    15 09 59.1 -32 41 56   0.1064  1.0578   110.6    64.0    24.8
2014 07 27    15 22 41.9 -33 48 11   0.1102  1.0626   112.5    62.0    24.9
2014 07 28    15 34 54.0 -34 45 28   0.1143  1.0674   114.2    60.2    24.9
2014 07 29    15 46 34.4 -35 34 37   0.1186  1.0722   115.7    58.5    24.9
2014 07 30    15 57 42.4 -36 16 28   0.1232  1.0770   117.1    57.0    25.0
2014 07 31    16 08 18.2 -36 51 50   0.1279  1.0818   118.4    55.7    25.0