YNAO Telescopes

The synoptic observations at YNAO (Yunnan
Astronomical Observatory, Kunming, China) are carried out in a solar
tower which hosts a twin telescope. Both telescopes have 18 cm
aperture and one of them is the full disk H-alpha telescope.
Filter bandpass is 0.05 nm and tunable filter range is +/-0.1 nm.
A 2K x 2K CCD camera is used

云南天文台（位于昆明，中国）的总体观测数据是在一座设有双望远镜的太阳塔中进行的。这两台望远镜均配备18厘米口径，其中之一为全盘H-alpha望远镜。滤光片的通带宽度为0.05纳米，可调滤光器的调整范围为±0.1纳米。观测过程中使用了2K x 2K的CCD相机。