We have observed EW Lac with the grating spectrograph attached to the 60/90 cm Schmidt telescope at Beijing Observatory from 1982 to 1984. The Balmer shell absorption lines of the star showed especially interesting variation.
英
美
- 1982年至1984年,我们用北台施米特卡焦摄谱仪,对EW Lac星进行了光谱观测。