Bottema M
Laboratory of Astrophysics and Physical Meteorology, The Johns Hopkins University, Baltimore,Maryland 21218, USA.
Appl Opt. 1967 Feb 1;6(2):213-9. doi: 10.1364/AO.6.000213.
Two methods of off-set sun-tracking are described which were developed as part of the balloon-astronomy program of The Johns Hopkins University for daytime observations of the planet Venus. The performance of the system in flight, while subject to oscillations in the suspension system, is discussed.
描述了两种偏置太阳跟踪方法，它们是约翰霍普金斯大学气球天文学项目的一部分，用于白天对金星进行观测。讨论了该系统在飞行中的性能，尽管其悬挂系统存在振荡。
