火星和星团
(原标题: Mars and the Star Clusters)
2022-12-30
浏览次数: 15
在今年年底，火星仍然在地球的夜晚闪耀着明亮的光芒，因为它徘徊在强大的金牛座。它明亮的黄色主导了这片星空的视野，包括金牛座的α星毕宿五、毕宿星团和昴宿星团。虽然红巨星毕宿五似乎固定在图像左侧的v形毕宿星团上，但毕宿五并不是毕宿星团的成员。毕宿星团离我们151光年远，这使它成为离我们最近的疏散星团，但毕宿五的距离不到这个距离的一半，在相同的视线范围内。在右边，距离我们400光年远的是疏散星团，编号为梅西耶45，也被称为昴宿星团或七姐妹星团。在希腊神话中，昴宿星是天文学巨人阿特拉斯和海洋女神昴宿星的女儿。
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At this year's end Mars still shines brightly in planet Earth's night as it wanders through the head-strong constellation Taurus. Its bright yellowish hue dominates this starry field of view that includes Taurus' alpha star Aldebaran and the Hyades and Pleiades star clusters. While red giant Aldebaran appears to anchor the V-shape of the Hyades at the left of the frame, Aldebaran is not a member of the Hyades star cluster. The Hyades cluster is 151 light-years away making it the nearest established open star cluster, but Aldebaran lies at less than half that distance, along the same line-of-sight. At the right, some 400 light-years distant is the open star cluster cataloged as Messier 45, also known as the Pleiades or Seven Sisters. In Greek myth, the Pleiades were daughters of the astronomical titan Atlas and sea-nymph Pleione.
© Gabor Balazs