Winter solstice instant of the solstice can be calculated, direct observation of the solstice by amateurs is impossible because the sun moves too slowly or appears to stand still (the meaning of "solstice"). However, by use of astronomical data tracking, the precise timing of its occurrence is now public knowledge. One cannot directly detect the precise instant of the solstice (by definition, one cannot observe that an object has stopped moving until one later observes that it has not moved further from the preceding spot, or that it has moved in the opposite direction). Further, to be precise to a single day,
Six Months, Three Days that their relationship will last exactly six months and three days and end very badly. Anders said in a 2016 interview that in this novelette "[t]he big challenge for me ... was how to have a satisfying resolution" to the which-future-is-right question: "they can’t both be right, but they kind of both are right, and how does that work?" In another 2016 interview, Anders commented that her decision to make her 2016 novel, "All the Birds in the Sky" a "relationship story" was influenced by the relationship that she had created in "Six Months, Three Days". The story was nominated