大黑子(群)AR 3664已经转到太阳另一面去了,按照这个纬度,再转回来估计要两周左右。黑子的存续时间基本上也就是十几天,所以它还能不能坚持到下一圈呢? (图源SDO/NASA)
https://weibo.com/5456131713/Oe434hWE1
Why is this step necessary? hello.2heng.xin might not be the server where you are registered, so we need to redirect you to your home server first. Don't have an account? You can sign up here
hello.2heng.xin