Planetka ma tyto elementy (prevzato z databaze Minor Planet Center) **************************** (8217)* 1995 HC = 1996 RH5 Discovered 1995 Apr. 21 by P. Pravec and L. Sarounova at Ondrejov. Id. T. Urata (MPC 28075) Epoch 1997 Dec. 18.0 TT = JDT 2450800.5 Nakano M 168.45946 (2000.0) P Q n 0.29198300 Peri. 134.49880 +0.69888558 +0.71523348 a 2.2502512 Node 179.83873 -0.66736389 +0.65216851 e 0.1744749 Incl. 2.36456 -0.25726326 +0.25123155 P 3.38 H 14.7 G 0.15 U 2 From 32 observations at 4 oppositions, 1949-1998, mean residual 0".50. Orbital elements from MPC 31090. **************************** Efemerida, souradnice jsou geocentricke: *************************** (8217) 1995 HC a,e,i = 2.25, 0.17, 2 Elements MPC 31090 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 1998 03 03 08 48.49 +15 32.2 1.745 2.638 148.0 11.5 18.7 1998 03 07 08 45.91 +15 47.3 1.774 2.637 143.3 13.0 18.8 1998 03 11 08 43.76 +16 00.7 1.806 2.636 138.8 14.4 18.9 1998 03 15 08 42.06 +16 12.3 1.842 2.635 134.4 15.7 19.0 1998 03 19 08 40.83 +16 22.0 1.880 2.633 130.1 16.8 19.1 1998 03 23 08 40.06 +16 30.0 1.921 2.632 125.9 17.9 19.1 1998 03 27 08 39.75 +16 36.1 1.963 2.630 121.8 18.8 19.2 1998 03 31 08 39.90 +16 40.3 2.008 2.628 117.9 19.6 19.3 1998 04 04 08 40.50 +16 42.8 2.054 2.626 114.1 20.3 19.4 1998 04 08 08 41.52 +16 43.5 2.102 2.624 110.4 21.0 19.4 1998 04 12 08 42.94 +16 42.5 2.151 2.622 106.8 21.5 19.5 Delta = vzdalenost od Zeme r = vzdalenost od Slunce V = hvezdna velikost v barve V (mag) *************************** Planetka neni v dosahu mensich dalekohledu, tato opozice byla pro pozorovani velmi neprizniva, protoze planetka se nachazela pobliz afelu sve drahy. Pri nejvetsim priblizeni k Zemi (0.85 AU) dosahuje jasnosti asi 16 mag.