sothic
1. The heliacal or sothic year is determined by the heliacal rising of sothis (the Egyptian name for the dog star).
偕日年或天狼星年是通过天狼星(大犬星的埃及名字)的偕日上升来确定的。
2. Sothic cycle
天狼周
3. Sothic year
天狼年