International Scholarly Research Notices

Research Article

Spline-Based Formulas for the Determination of Equation of Time and Declination Angle

Table 1

Selected points for the 16 knots for EOT and DA.
Knot numberEOT (minute)DA (degree)
𝑋 E O T
(day no.)		 𝑌 E O T (minute) 𝑋 D A
(day no.)		 𝑌 D A
(degree)
11−3.41−23.07
225−12.325−19.17
350−13.950−11.57
475−8.975−2.37
5100−1.51007.35
61253.312515.78
71502.615021.50
8175−2.217523.43
9200−6.220021.13
10225−4.922515.17
112501.82506.67
1227510.4275−2.95
1330016.0300−12.23
1432514.3325−19.55
153504.6350−23.23
16365−2.8365−23.20