HNSKY

HNSKY or Hello Northern Sky is a 2D astronomy program for Windows simulation of the night sky, which is developed by Dutchman Han Kleijn since early 1998. It simulates the starry sky of the years 1750 to 2250. The large version ( 41 MB) includes a star database of 2.5 million stars. In addition, the program can be expanded with its own object data.