摘要
精确测定太阳直径具有理论和实际应用上的双重意义.本文分析了现行测定太阳直径的几种方法的不足之处,指出了用中国光电等高仪测定太阳直径具有若干特点.文中提出了用光电等高仪测定太阳直径的两种实用方案,并进行了模拟计算.计算表明两种方案都能以优于0".1的精度测定太阳直径,而单像方案具有更高的精度.
Precisely determining the solar diameter has important significance in both theory and practice. Some shortcomings of several methods to measure the solar diameter,which are being used currently, have been reviewed in this paper, and advantages of using Chinese photoelectric astrolabe Mark Ⅰ and Mark Ⅱ for measuring the solar diameter are pointed out. Two different practical methods for determining the solar diameter are proposed, and simulation calculations are carried out. Which indicate that both methods can be used for measuring the solar diameter with precision of 0″.1, and the method of a single image has higher precision.
出处
《天文学报》
CSCD
北大核心
1993年第4期389-396,共8页
Acta Astronomica Sinica
关键词
光电等高仪
太阳直径
太阳物理
Photoelectric astrolabe—Solar diameter—Solar physics
