期間はちょうどどれくらいかかるかです。この場合、daysninto秒に変わります。
# "期間" = T = 365 1/4 "日" = 24(365 + 1/4) "時間" =(24 * 60)(365 + 1/4)= "分" =(24 * 60 ^ 2 )(365 + 1/4) "秒" = 31557600秒~~ 3.16 * 10 ^ 7秒#
#f = 1 / T = 1 /(3.16 * 10 ^ 7)= 3.16 * 10 ^ -7Hz#
# "角速度" =オメガ=シータ/ T =(2π)/(3.16 * 10 ^ 7)~~ 1.99 * 10 ^ -7rad# #s ^ -1#
# "軌道速度" = v =ロメガ=(1.50 * 10 ^ 9)(1.99 * 10 ^ -7)= 298.5 ~~ 299ms ^ -1#
#v =ロメガ=(2ピル)/ T#
#T =(2pir)/ v =(2pi(228 * 10 ^ 9))/(299)~~ 4.79 * 10 ^ 9s#
#4.79 * 10 ^ 9 "秒" =(4.79 * 10 ^ 9)/ 60 "分" =(4.79 * 10 ^ 9)/ 60 ^ 2 "時間" =(4.79 * 10 ^ 9)/(24 * 60 ^ 2) "日" =(4.79 * 10 ^ 9)/((24 * 60 ^ 2)(365 + 1/4)) "年" ~~ 152 "年"#