【摘要】 本文介绍一种简单的掩星观测用的光电光度计.并对几个设计问题作了讨论,包括可测星等,信噪比与累积时间的关系,背景亮度的影响及对系统频带宽度的要求.该仪器已在1979年10月28日小行星(65)Cybele 掩恒星 AGK3+19°0599事件中试用,得到成功的结果.更多还原

【Abstract】 This paper describes a simple photoelectric photometer for the observation of occultation.Also discussed are some design problems,including the relation between measurable magnitude,signal-noise ratio and integrating time,the effect due to bright- ness of background,and the requirement of frequency band-widtb of tbe photometer. As a test,the instrument was used to observe the occulted event or star AGK + 19°0599 by asteroid (65) Cybele on Oct.18,1979 and successful result was obtained.更多还原