The Ghost of Summer Suns

Halloween is approaching, and this means that Arcturus, the star sparkling low in the west-northwest in twilight, is taking on its role as “the Ghost of Summer Suns.” What does this mean? For several days centered on October 29th every year, Arcturus occupies a special place in the sky above your local landscape. It closely marks the spot there where the Sun stood at exactly the same time (by your clock) during warm June and July — in broad daylight, of course! So, in the last days of October each year, you can think of Arcturus as the chilly Halloween ghost of the departed summer Sun.

via Sky and Telescope

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