Snowy Blue Hour In Hudson. Amtrak Train 244 with AMTK 709 (P32AC-DM leading) presented itself in Hudson, New York during a radiant blue hour on December 13, 2022 with the snow on the ground reflecting the remainders of the sunshine at civil twilight. The picturesque former New York Central station was built in 1874, and is the oldest continuously operating train station in the state.