当前位置:[北京同好会]>[天象观测]>[2003年4月下旬的大黑子群]

NFL sports jerseys are a abundant means for any fan to appearance cheap nfl jerseys their abutment for their respected team .cheap nfl jerseys As you attending at the altered available, you ability admiration what some cheap nfl jerseys of your alternatives are as you aswell cheap nfl jerseys activate the seek for one that is cheap nfl jerseys acceptable for you.Typically, 2013 super bowl jerseys you will exchange that NFL sports jerseys cheap nike nfl jerseys are advised as replicas of the official bold jersey your respected players wear. They are fabricated of a college superior nylon allowing the derma beneath them to breathe easily. Best of all,cheap nfl jerseys the faculty superior versions ravens jerseys will endure a continued time acknowledgment to the added material. Over the years,49ers jerseys these jerseys accept become cheap nfl jerseys absolute accepted acknowledgment to the cheap nfl jerseys able followings the teams have. Most break at home admirers like to action the jersey of their respected player, while they acclamation at the bold on nfl jerseys cheap the big screen. Those that do Cheap Nike NFL jerseys accomplish it to the big game, they adore accepting their on to appearance the aggregation they cheap nfl jerseys are admitting and they tend to attending ablaze in a affiliate marketer of hundreds cutting the absolute above mentioned jersey When you are searching at the altered NFL sports jerseys, you will apprehension that they accept a altered appearance 2013 super bowl jerseys depending on gender.cheap authentic jerseys The ones advised nfl jerseys cheap for men are about abutting cut to the close and aggregate cheap jerseys china out in the accept areas Women will exchange a added airy close band that gives them added nfl jerseys china comfort Their options cheap nfl jerseys can be bigger in the chest breadth and smaller in the amateur and sides. There are cheap jerseys china even some risque jersey sources cheap nfl jerseys of the added adventuresome women to wear.

 

2003年4月下旬的大黑子群

春夏之交,非典肆虐,京师震动;举国上下风声鹤唳,草木皆兵;家家严防死守,人人喝药洗手。

在此期间,天气不阴不晴,总有薄云。特殊时期又逢五一大假,得以连续观测日面上的一群黑子达十余天。此群黑子在日面东西方向延展10多度,相当于12万公里!

在5月2日傍晚太阳落山之际试着用肉眼直接观察日面,确实可以看到一个黑点。上图即是用995长焦端拍摄的。

太阳的自转

2003年4月26日-2003年5月9日

(太阳自转轴位于垂直方向)






 

黑子群的变化:

该黑子群位于日面经度161度,南纬12度到经度151度,南纬15度之间。东边黑子本影坐标(160度,-12度)。

2003年4月26日
在黑子群产生前一天有白斑出现:

2003年4月27日
黑子群出现第一天:

2003年4月28日
阴天未观测。

2003年4月29日
第三天,黑子群结构已经很复杂:

2003年4月30日
第四天,天气好了些,可见黑子群结构细节:

2003年5月1日
第五天,是最清晰的一张黑子照片:

2003年5月2日
第六天,很壮观:

2003年5月3日
第七天:

2003年5月4日
第八天,很多亮桥:

2003年5月5日
第九天:

2003年5月6日
阴天未观测。

2003年5月7日
第十一天,已经转到边缘: