当前位置:[北京同好会]>[观测档案]>[2008年日全食]>[2008年日食北京观测记]

陈俊超

举世瞩目的日全食于2008年8月1日发生,作为业余天文爱好者中的业余者,本准备好与同好者一起到甘肃进行全食的观测,怎奈工作难以脱身(对铜臭的追逐),甘肃之行未能如愿。只能留在北京观测了,也就是日全食变成了日偏食。

为了观测,本次预先准备的有KOWA664观鸟镜、SONY828数码照像机、D58mm增倍镜、太阳减光膜(观鸟镜及照相机用)、两付便携日食观测眼镜(天文馆购买)、JVC数码硬盘摄像机。虽然没有到日全食的观测带进行观测,但是在北京看到日偏食也是罕见的。北京当天天气 比较晴朗,但到下午三四点钟时转为多云,情况并不理想,但无论如何都是要观测的。

考虑到下午六点钟,太阳的高度较低,北京城近郊区又在北京盆地之内,西北侧的西山将会有很大遮挡,因此提前驾车到门头沟妙峰山上观测。

与设想的情况基本一致,那里的条件较好,观测效果还是比较理想。直接用减光设备观测到的日食和使用观鸟镜观测到的日食是异常的美丽,特别是第一次这么专门地观测日食感到十分开心。至于摄像摄影,拘于条件限制,基本上是使用SONY828+增倍镜进行摄影, 虽说记录的图片资料不太理想,特别是没有注意照相机镜头前的减光膜与镜头光轴完全垂直,造成日食的太阳边沿有些色差,算是小小经验吧!对保留的部分照片在此稍作整理,与大家分享。

8月1日中午天晴,西侧天空微微有点云,很薄。下午来到北京市门头沟山区,天气状况不容乐观。16:19

下午选定较好的观测地——门头沟区妙峰山东坡平台,准确的地址是东经116度02分28秒——北纬40度04分35秒,与海淀区凤凰岭的阳台山主峰仅有一步之遥。

还请来了三位助手。

天气好像不太配合,随着时间的接近,云越来越多。17:23

时间一分一秒的向前走着,心里是焦急的等待,听说在我国境内的日全食是很难见到的,1997年黑龙江漠河出现过一次,再就是今天的日食了,可见全食的为新疆哈密-甘肃嘉峪关一带。虽然未能到全食带观测,但是在北京门头沟亲临其景,心情也异常激动。慢慢的太阳附近的云层又散开了。18:12

可恨的天,偏偏天公与我作对,日食快开始时,西侧天空聚集越来越多的云。2008年8月1日18:18日食正式开始。不过还好,日食开始后,透过云层,清晰的看到了日食。18:19

两分钟后,天空亮度有所增加。18:21

又一分钟过去。18:22

清晰前提下,可见的日食最多的时侯。18:25

18:28时的景象

有另一天象出现,大约在太阳的正北方,与太阳有8~10度角的天空出现了彩虹。北京及北京的西北方,当天一直晴朗,没有降雨,不知为什么在日食的同时出现了彩虹。这与日食有关吗?实际这个“彩虹”应是云中冰晶折射所致。 18:32

放大后看天空的彩虹。18:33

在云层的缝隙间,日食再次出现,也许是回眸一笑。18:35

按先前的计算,日食还在进行,然而,云层几乎全部掩盖其尊容了,看起来只能说拜拜了。18:37

日食期间有一架飞机从太阳底下通过,想必他们是“高水平的”天文观测者,看到的日食会更加精彩,刚好被我的视频记录下来。

本次观测之中,激动人心的场面很多,老同志、小天文爱好者都极其的兴奋,只是忙于多看一眼,忙于赶紧使用影像设备记录而忘记了记录他们的瞬间,等结束了才想起来,18:57大家来张合影,以示纪念。

明年7月22日,我国长江流域将出现日全食,本次作为练兵,明年一定提前准备看个详细。

二〇〇八年九月二十八日


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