日面高纬度区域黑子

Sunspots at the High Altitude of the Solar Surface

用云南天文台太阳黑子观测资料，对太阳活动１９、２０、２１、２２周及２３周上升段日面高纬度区域（大于±４０°）的黑子群进行统计。结果表明，高纬度黑子具有数量少，结构较简单，在日面存在时间不长等特点。

Based on the data of the sunspots observed at Yunnan Observatory,the sunspot groups at high altitude(over 40 degree)during the solar cycles 19、20、21 and 22,and the rising period of the solar cycle 23 have been collected statistically in this paper.The result obtained is that the sunspots at high altitude are charactered with small amount,simple structure and short lifetime,and they can indeed be used to indicate the beginning of a new solar cycle.