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观测Tempel彗星

2005年7月4日,美国宇航局的彗星探测器撞击坦普尔1号彗星。比这个撞击更为猛烈的是媒体们的兴奋。

9P/tempel的预报亮度是9.6等左右 , 撞击前在市内进行了数次寻找均无结果。虽然天气状况欠佳,但在拍摄的附近天区的照片上仍可以辨别出11等的恒星,而彗星则踪迹全无。这说明彗星的亮度较暗,或者非常弥散,或兼而有之。

7月4日撞击成功。当天北京天气炎热,天顶有大片云朵,在北方地平处露出些许蓝天,唤起了一点希望。傍晚,虽然天气不乐观,仍然决定出发,前往八达岭进行观测。

晚9时许,几辆车先后到达。此时天上浮云遮顶,木星都看不清楚,更不用说彗星了。

见此情景,大家当机立断,改观星为消暑纳凉活动。

远离了都市的燥热,清凉的山风令人沉静许多。

空中慢慢露出一些云缝,支起望远镜找一找目标。

10点半,织女星模模糊糊地出现了。

木星西沉。低空仍有云,彗星是彻底没法看了。

合影留念,打道回府。

在八达岭隧道中堵了20分钟后驶出山洞,繁星满天。

7月5日是一个大晴天,到了晚上依然是千里无云。

再赴八达岭。

一下车,就见西边天空金星和水星低垂在暮色之中,非常漂亮。

幻影游动。

干活。

底光要少打。

调焦要有运气。

彗星与南边的一颗小星靠得很近,看起来只有13等,怪不得目视很难观测到。

4张叠加,彗星的移动还是明显的。

尽管天光有些亮,银河还是很清晰。

在午夜前后继续观测了一些卫星。

星空下。

 


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