Comet P/2007 H1 (McNaught) is at Opposition (2.637 AU) on the 18th May, 2013.
Ephemeris
Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag 2013 05 17 15 55 33.9 -03 38 30 2.6410 3.6223 163.6 4.5 20.7 2013 05 18 15 54 50.6 -03 35 44 2.6372 3.6189 163.6 4.5 20.7 2013 05 19 15 54 07.2 -03 33 03 2.6336 3.6155 163.6 4.5 20.7 2013 05 20 15 53 23.5 -03 30 28 2.6304 3.6120 163.5 4.6 20.7 2013 05 21 15 52 39.7 -03 27 58 2.6274 3.6086 163.3 4.6 20.7 2013 05 22 15 51 55.9 -03 25 34 2.6247 3.6052 163.1 4.7 20.7 2013 05 23 15 51 11.9 -03 23 17 2.6223 3.6017 162.8 4.8 20.7 2013 05 24 15 50 28.0 -03 21 05 2.6201 3.5983 162.4 4.9 20.7 2013 05 25 15 49 44.0 -03 19 00 2.6183 3.5948 161.9 5.0 20.6 2013 05 26 15 49 00.1 -03 17 01 2.6167 3.5914 161.4 5.2 20.6 2013 05 27 15 48 16.3 -03 15 09 2.6154 3.5879 160.8 5.3 20.6 2013 05 28 15 47 32.6 -03 13 23 2.6144 3.5844 160.2 5.5 20.6 2013 05 29 15 46 49.1 -03 11 44 2.6136 3.5810 159.6 5.7 20.6 2013 05 30 15 46 05.8 -03 10 12 2.6131 3.5775 158.9 5.9 20.6 2013 05 31 15 45 22.7 -03 08 47 2.6129 3.5740 158.2 6.1 20.6