An annular eclipse is seen beside the Tokyo Sky Tree tower in Tokyo's Sumida Ward at 7:34 a.m. on May 21. This composite photo was created using different exposure levels taken at the same place. (Satoru Sekiguchi)
This common question frequently precedes the rediscovery of one of the most commonly recognized configurations of stars on the northern sky: the Big Dipper. This grouping of stars is one of the few things that has likely been seen, and will be seen, by every generation. The Big Dipper is not by itself a constellation. Although part of the constellation of the Great Bear (Ursa Major), the Big Dipper is an asterism that has been known by different names to different societies.