NASA 天文图片日历

探索宇宙的奇迹,每日一图

阿比斯库的帕赫利亚

(原标题: Parhelia at Abisko)

2025-02-15

浏览次数: 25

在这超凡脱俗的冬季景观中,三个太阳似乎拥抱着地平线。2月3日,一辆雪地摩托在瑞典北部阿比斯库国家公园附近的山区探险时,捕捉到了这一令人回味的场景。在地球太阳两侧的两个亮点是parhelia(单数parhelion),也被称为模拟太阳或太阳狗。太阳暴晒是由悬浮在朦胧大气中的六边形冰晶引起的,这些冰晶反射和折射阳光。通常在冬季和高纬度地区看到,明亮的日冕位于22度可见的太阳冰晕附近。

查看原文解释

Three suns seem to hug the horizon in this otherworldly winterscape. But the evocative scene was captured during a February 3rd snowmobile exploration of the mountainous region around Abisko National Park, northern Sweden, planet Earth. The two bright spots on either side of Earth's Sun are parhelia (singular parhelion), also known as mock suns or sun dogs. The parhelia are caused by hexagonal ice crystals suspended in the hazy atmosphere that reflect and refract sunlight. Commonly seen in winter and at high latitudes, the bright parhelia lie along the visible 22 degree ice halo of the Sun.

最近天文图片