Country Japan 145 4 10 Italy F Pennetta 6 6 Vives Q Japan Y Sema 6 1 0 0 4 0 2004 12 9 10 ↊ 11 ↋ 12 10 30 kg {\displaystyle M_{\odot }=1.98892\times 10^{30}{\hbox{ kg}}} (kg being kilograms)