双子座和连指手套
(原标题: Geminids and the Mittens)
2022-12-25
浏览次数: 22
3200号小行星法厄同给地球的年度礼物总是在12月到来。也被称为双子座流星雨，流星流的来源是沿着神秘小行星轨道脱落的尘埃。在12月13/14日的流星雨活动高峰附近，双子座流星雨被捕捉到了这张夜空照片，这张照片是由22张星空照片合成的，这些照片是在月亮从美国西南部的纪念碑谷升起之前拍摄的。靠近流星雨辐射点位置的明亮恒星是双子座的双星Castor（蓝色）和poloxx（黄色）。当地球扫过尘埃流时，平行的流星轨迹似乎从双子座天空的一个点辐射出来，因此每年的流星雨以双子座命名。从相机的角度来看，这张横跨纪念碑谷的三个突出的孤峰的照片也为其中两个提供了合适的名字。第三个叫麦里克·巴特。
查看原文解释
Asteroid 3200 Phaethon's annual gift to planet Earth always arrives in December. Otherwise known as the Geminid meteor shower, the source of the meteroid stream is dust shed along the orbit of the mysterious asteroid. Near the December 13/14 peak of the shower's activity, geminid meteors are captured in this night skyscape, composited from 22 images of starry sky taken before the moon rose over Monument Valley in the American southwest. The bright stars near the position of the shower's radiant are the constellation Gemini's twin stars Castor (blue) and Pollux (yellow). As Earth sweeps through the dusty stream, the parallel meteor trails appear to radiate from a point on the sky in Gemini due to perspective, and so the yearly shower is named for the constellation. From the camera's perspective, this view of three prominent buttes across Monument Valley also suggests appropriate names for two of them. The third one is called Merrick Butte.
© Chuck Derus