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Friday, June 29, 2007

Sunrise with Corona from Southern Central Mountains in Taiwan

A beautiful corona captured in February 'o3 by Edward Lin at Lidao, a small township in southern Central Mountain Range, Taiwan.

A corona forms as sunlight is diffracted by small particles, e.g. cloud droplets, small ice crystals. It is much smaller than 22 degrees halo.
日華乍現日出南橫

照片拍攝於2003年2月,南橫利稻。「」是光線被高空中的微粒(如微小水滴或冰晶)繞射形成的現象,對太陽而言就叫日華,對月亮則是月華。「 華」比「」小許多,而且成因不同。

1 comment:

  1. 原來還有「 華」跟「暈」的分別,以前都統稱為暈....真是無知,一定要牢牢記住「 華」小「暈」大...這樣以後和別人看月亮時就有學問多了....謝謝啦^_^

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