Besselian Elements for Total Solar Eclipse of 2060 Apr 30 (original) (raw)

Fred Espenak

The following table contains the Besselian elements for the Total Solar Eclipse of 2060 Apr 30 .

The geographic coordinates of the eclipse path are in the Path Table . The global visibility of the eclipse is shown on an Orthographic Map . The features of this map are described in the Key to Solar Eclipse Path Tables. The path of the eclipse is displayed in greater detail on a Google Map .

Besselian Elements for the Total Solar Eclipse of 2060 Apr 30

        Equatorial Conjunction:     10:21:01.9 TDT     J.D. = 2473579.931272
          (Sun & Moon in R.A.)    (=10:19:07.7 UT)

         Ecliptic Conjunction:      10:12:28.4 TDT     J.D. = 2473579.925329
         (Sun & Moon in Ec. Lo.)  (=10:10:34.2 UT)

              Instant of            10:09:59.8 TDT     J.D. = 2473579.923609
           Greatest Eclipse:      (=10:08:05.6 UT)


        --------------------------------------------------------------------------- 
                    Gamma =  0.2422            Ephemerides = VSOP87/ELP2000-82
        Eclipse Magnitude =  1.0660           Lunation No. =     746
                       ΔT =   114.2 s         Saros Series =  139 (32/71)

        Lunar Radius   k1 = 0.272488 (Penumbra)        Shift in      Δb =  0.00"
         Constants:    k2 = 0.272281 (Umbra)       Lunar Position:   Δl =  0.00"

        --------------------------------------------------------------------------- 
        Geocentric Coordinates of Sun & Moon at Greatest Eclipse (VSOP87/ELP2000-82):

        Sun:       R.A. = 02h33m38.4s         Moon:      R.A. = 02h33m13.7s
                   Dec. =+15°04'16.8"                    Dec. =+15°17'46.8"
          Semi-Diameter =    15'52.6"           Semi-Diameter =    16'38.8"
            Eq.Hor.Par. =       08.7"             Eq.Hor.Par. =  1°01'05.7"

        --------------------------------------------------------------------------- 
        Polynomial Besselian Elements for:   2060 Apr 30   10:00:00.0 TDT  (=t0)

          n        x          y         d          l1         l2          μ

          0  -0.186330   0.182471   15.06877   0.533641  -0.012434  330.71164
          1   0.5315517  0.2346059   0.012049  0.0000474  0.0000472  15.002564
          2   0.0000450 -0.0001054  -0.000003 -0.0000128 -0.0000127
          3  -0.0000089 -0.0000041

                         Tan ƒ1 = 0.0046411    Tan ƒ2 = 0.0046180

        At time t1 (decimal hours), each Besselian element is evaluated by:

           a = a0 + a1*t + a2*t^2 + a3*t^3    (or a = Σ [an*t^n]; n = 0 to 3)

              where:    a = x, y, d, l1, l2, or μ
                        t = t1 - t0  (decimal hours) and t0 = 10.000 TDT


        The Besselian elements were derived from a least-squares fit to elements
        calculated at five uniformly spaced times over a six hour period centered at t0.
        The Besselian elements are valid over the period  7.00 ≤ t0 ≤ 13.00 TDT.

        Note that all times are expressed in Terrestrial Dynamical Time (TDT).

               Saros Series 139:  Member 32 of 71 eclipses in series.

Total Solar Eclipse of 2060 Apr 30

Acknowledgments

Predictions for the Total Solar Eclipse of 2060 Apr 30 were generated using the VSOP87/ELP2000-82 solar and lunar ephemerides and a value of ΔT = 114.2 seconds. The accuracy of the northern and southern edges of the eclipse path are limited to approximately 1-2 kilometers due to the lunar limb profile.

All eclipse calculations are by Fred Espenak, and he assumes full responsibility for their accuracy. Permission is freely granted to reproduce this data when accompanied by an acknowledgment:

"Eclipse Predictions by Fred Espenak, NASA's GSFC"

For more information, see: NASA Copyright Information