fool 发表于 2003-2-15 18:43

[酷图] 漂亮的月晕

晕不只是白天特有的现象，当薄卷云面纱般地掩着明亮的月亮时，可以找到它。22° 晕很容易看到，但有时才可看到幻月（moon dogs）或其它晕现象。
图片说明：一个22° 围着月亮木星在晕的右上角，西班牙的Juan Carlos Casado在San Sebastian拍，用16mm的镜头。（转载许可©Juan Carlos Casado）:D
水滴也能产生围着月亮的环，这些围着月亮的光环是由云中的小水滴折射产生的。
原文：Halos are not an exclusively daytime phenomena.   Look for them when thin cirrus veils a bright moon. 22° halos are easily seen but look also for "moon dogs" and others.
 

A 22° halo surrounds the Moon, Jupiter lies on the halo at upper right. Captured by Juan Carlos Casado at San Sebastian, Spain with a 16 mm lens. Reproduced with permission, ©Juan Carlos Casado


Water drops also produce coloured rings around the moon. These coronae are closer to the moon than the 22° halo and are caused by diffraction by water droplets in clouds.

浩然星空 发表于 2003-2-15 22:07

我拍的月晕，差多了

http://hallosky.lamost.org/myphoto/yueyun02-4-23_mid.jpg

fool 发表于 2003-2-15 22:15

不错嘛！我拍的时侯露光过度了。

fool 发表于 2003-2-15 22:52

come from spaceweather:
月亮和木星
在二月15日星期六，日落之后向东方眺望，你会看见满月和木星引人注目地相聚一起，……

meteorobs 发表于 2003-2-16 16:33

不对！

二月15日不是满月！
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