was a Japanese lunisolar calendar (genka reki).Nussbaum, Louis-Frédéric. (2005). "Calendar" in Japan Encyclopedia, p. 98. It was published in 1797.Nussbaum, "Kansei-reki" at p. 478; Orchiston, Wayne et al. (2011). Highlighting the History of Astronomy in the Asia-Pacific Region, p. 155.
History The Kansei-reki system was the work of Takahashi YoshitokiNussbaum, "Takahashi Yoshitoki" at p. 933. and Hazama Shigetomi.Orchiston, Highlighting the History of Astronomy in the Asia-Pacific Region, p. 155.
Takahashi and Hazama used Western astronomy studies to modify the traditional calendar.
See also Japanese calendar Sexagenary cycle Kansei
References
External links National Diet Library, "The Japanese Calendar"