Again, improved instrumentation led to the finds. Which Lang says is a common occurrence in the world of skygazing.
朗说，像这种仪器的改进促使新的天文发现，在天文观测的历史中屡见不鲜。
Notable too in skygazing lore Mizar, second star from the left in the dipper's handle, forms a vision-testing visual double star with apparently close Alcor.
值得注意的还有斗柄左数第二颗星“开阳”，它与临近的“开阳增一”是一对用于测试视力的肉眼可见双星系统。
Notable too in skygazing lore Mizar, second star from the left in the dipper's handle, forms a vision-testing visual double star with apparently close Alcor.
同样显眼的还有北斗勺柄的左起第二颗星星北斗六开阳，她与北斗七玉衡组成一个测试眼力的视觉双星。
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