Regulus SHA dec 1981 208 09.7' 12 03.6' N 2020 207 38.4' 11 52.1' N ------------------------------- -31.3' -11.5' Year 1981: Deneb Alphecca Spica Regulus Elnath Schedar 190 25:56.6 42.6 45:34.2 118.7 18:23.2 168.6 34:25.8 227.1 15:52.3 300.2 26:26.0 0.1 +441 / +526 / +203 -287 / +522 / +263 -588 / +596 / +59 -408 / +556 / -219 +301 / +522 / -259 +599 / +599 / +0 Hc: 34 25.8' corrections: (a) latitued per 10' : -408 * 0 = 0 (b) declination per 10': +556 * (-1.15) = -639 (c) LHA per 10' : -219 * (-3.13) = +685 ---------------------------------------------- +46 Hc in year 2020 (estimate): 34 25.8' 0 00.8' --------- 34 26.6 Year 2020: Deneb Alphecca Spica Regulus Elnath Schedar 190 25:57.2 42.3 45:16.6 118.3 18:08.0 168.1 34:26.6 226.4 16:10.0 299.7 26:38.8 359.7 +443 / +526 / +201 -284 / +522 / +264 -587 / +596 / +62 -413 / +557 / -217 +297 / +521 / -260 +599 / +599 / -1 Hc in year 2020 (calculate): 34 26.6' Error: 0.0'