De=-23.0 E.Dia=19.05"
Ring Long dia 43.42" Ring short dia 17.00"
310mm Newtonian(F5)
TeleVue barlow 5x f/40, 2 deg. prism,
Digital camera NEC PICONA 1/7sec
Kazuyoshi Maeda (350mm Newton, Digital still camera NEC PICONA)
1999/09/08 19:41:20(UT)
I=106.6 III=162.4
350mm Newton(F5)
NEC PICONA 1/7sec, 3 frames composite