I.INTRODUCTION The large-scale phenomena of the plasma tail of Halley’s Comet after its passage through the perihelion have been observed with a tracking camera having an aperture of 10 cm, a focal length of 25 cm an...I.INTRODUCTION The large-scale phenomena of the plasma tail of Halley’s Comet after its passage through the perihelion have been observed with a tracking camera having an aperture of 10 cm, a focal length of 25 cm and a view-field of 24.°2×17.°6 and using plates of Kodak Ⅱa-O at the Simao Observation Station (100°58′18″E,展开更多
文摘I.INTRODUCTION The large-scale phenomena of the plasma tail of Halley’s Comet after its passage through the perihelion have been observed with a tracking camera having an aperture of 10 cm, a focal length of 25 cm and a view-field of 24.°2×17.°6 and using plates of Kodak Ⅱa-O at the Simao Observation Station (100°58′18″E,