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Home  /  Picture of the Day  /  Pic of the Day by Category  /  Environment & Health 环境和卫生   /  武汉天空惊现两太阳,该罕见天象叫“幻日”- A spectacle of 'two suns' was seen in the skies of Wuhan; a rare phenomenon named 'unreal sun'
武汉天空惊现两太阳,该罕见天象叫“幻日”- A spectacle of 'two suns' was seen in the skies of Wuhan; a rare phenomenon named 'unreal sun' print version
huan_ri_330level 1
9月4日17点40分,网友[1]"游客"发帖:"武汉(Wuhan)天空出现两个太阳奇观[2]!"网友"游客"感到特别惊奇,于是拍了下来发到网上。左边的太阳比较圆而耀眼[3],右边的太阳形状不规则[4],发出的光弱一点。专业摄影记者[5]鉴定了这张照片,看不出PS(Photoshop)的痕迹[6]。

湖北省(Hubei province)天文学会(Astronomy Society)的高布锡说,这是一种天气现象称为"幻日"[7]。他说, "幻日"一般会出现两个"太阳",但有时也会出现三个或四个。

"幻日"出现的条件首先要有高层云[8],其次云层要[9]。 "幻日"现象持续时间较短,观测者[10]和太阳之间的角度要刚好,才能看到"两个太阳"。

On September 4, 17:40, a netizen named 'tourist' posted: "a spectacular sight of two suns appears in the sky of Wuhan!" 'Tourist' felt amazed and uploaded photos of the spectacle on the internet. The left sun was round and dazzling while the right sun had an irregular shape, projecting a weaker light. An expert photographer checked to pictures and saw no trace of Photoshop (PS).

Gao Buxi of the Astronomy Society of Hubei province said that this phenomenon is called 'unreal sun'. This 'unreal sun' phenomenon usually displays two suns, yet sometimes it can even include three or four.

In order for the 'unreal sun' to take place there needs to be altostratus clouds and the layer of clouds must also be thin. 'Unreal sun' can be seen during a short time fraction and there must be a specific angle between the observer and the sun. Only then can one see the 'two suns'.

 

huan_ri_330
Original article published by 武汉晨报

[1]网友wǎng yǒu - netizen

[2]奇观 qíguān - spectacle

[3] 耀眼 yàoyǎn - dazzling

[4] 不规则 bùguīzé - irregular, inconsistent

[5] 摄影记者 shèyǐng jìzhě - photographer

[6] 痕迹 hénjì - mark, sign

[7] "幻日" huàn rì - unreal/imaginary sun

[8] 高层云 gāocéngyún - altostratus cloud, a special type of gray cloud, often formed by ice crystals

[9] 薄 báo - thin

[10]  观测者guāncè zhě - observer


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