History

Time	Change
2017-01-05 11:49:56+00:00	Created
2017-01-05 11:49:56+00:00	Associated with 天球
2017-01-05 15:05:21+00:00	Associated with Celestial Sphere
2017-01-05 15:05:21+00:00	Associated with celestial sphere
2017-01-05 15:08:22+00:00	Associated with 天の
2017-01-06 13:36:13+00:00	Associated with 天球の中心
2017-02-17 12:54:46+00:00	Associated with 天球面