Nanjing gulou district over the Sun, experts say because he floats too much sun | float | | Nanjing _ news

Yesterday, around 8:25 A.M., high up in the Nanjing gulou district coal Harbor, some have seen two Suns in the sky, a lot of small, looked far apart so close, lasted about 1 minute.

"Both the Sun, above a large, below a small, very rare indeed, but certainly the sun above is true, little Sun below is false. "A member of the public told reporters.

Yangtse evening post reporter interviewed an optics expert, experts said, this is in fact the phenomenon known as Halo or holidays are often produces a kind of optical phenomena in the atmosphere. According to reports, accompanied by thin semi-transparent clouds in the sky, and because it was on a sunny day, a number of floats in the air, in the case of coincidence, after these floating coat with water vapor in the clouds, might formed Prism optical instrument, just when the Sun after shooting on the floats, refraction occurs, it will form a Halo phenomenon.

"Haze days in Nanjing is right now, floating in the air, which create very convenient conditions for Halo formation, but this last time is shorter, generally only for a moment or for a few minutes, this phenomenon will disappear soon. "The experts said.

Correspondent Wu Jiamin Yangtze evening news reporter Mei Jianming

(Edit: SN035)
December 05, 2013 Yangtse evening post
(
南京鼓楼区上空现两个太阳 专家称因漂浮物太多|太阳|漂浮物|南京_新闻资讯

　　昨天上午8点25分左右，南京鼓楼区煤炭港的天空上，有市民居然看见空中出现两个太阳，一大一小，远远看去相隔还很近，前后持续了大约1分钟。

　　“这两个太阳，上面一个大，下面一个小，确实非常少见，但肯定上面大太阳是真的，下面小太阳是假的。”一位市民告诉记者。

　　扬子晚报记者采访了一位光学专家，专家表示，这其实是被称为幻日或假日的现象，是大气中经常产生的一种光学现象。据介绍，天空中伴有半透明的薄薄云层，且因为是在晴天里，空气中有不少漂浮物，在凑巧的情况下，这些漂浮物沾上云层中的水汽后，可能就会形成光学仪器中的多棱镜，正好当太阳光射在这些漂浮物上后，发生折射现象，就会形成幻日现象。

　　“眼下南京是雾霾天，空气中漂浮物格外多，这就为幻日形成创造非常便利的条件，但这种现象持续的时间比较短，一般只有一瞬间或者几分钟，这种现象很快就会消失。”专家说。

　　通讯员 武家敏 扬子晚报记者 梅建明

（编辑：SN035）
2013年12月05日07:16
扬子晚报
)