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Hybrid Solar Eclipse of 2005 Apr 08

Table 1 - Elements of the Eclipse

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Geocentric Conjunction      20:16:44.50 TDT     J.D. = 2453469.344960
 of Sun & Moon in R.A.:   (=20:15:39.70 UT)

      Instant of            20:36:50.44 TDT     J.D. = 2453469.358917
   Greatest Eclipse:      (=20:35:45.64 UT)


Geocentric Coordinates of Sun & Moon at Greatest Eclipse (DE200/LE200):

Sun:       R.A. = 01h10m30.278s       Moon:      R.A. = 01h11m08.328s
           Dec. =+07°28´47.25"                   Dec. =+07°10´59.27"
  Semi-Diameter =    15´58.15"          Semi-Diameter =    15´50.73"
    Eq.Hor.Par. =       08.78"            Eq.Hor.Par. =  0°58´08.96"
         Δ R.A. =        9.173s/h              Δ R.A. =      122.792s/h
         Δ Dec. =       55.90"/h               Δ Dec. =      951.01"/h


Lunar Radius   k1 = 0.2725076 (Penumbra)        Shift in      Δb =  0.00"
 Constants:    k2 = 0.2722810 (Umbra)       Lunar Position:   Δl =  0.00"

Geocentric Libration:   l =   4.7°       Brown Lun. No. = 1018
(Optical + Physical)    b =   0.3°         Saros Series =  129 (51/80)
                        c = -20.6°            Ephemeris = (DE200/LE200)

Eclipse Magnitude = 1.00738        Gamma =-0.34734        ΔT =    64.8 s


Polynomial Besselian Elements for:   2005 Apr 08   21:00:00.0 TDT  (=t0)

  n        x          y         d          l1         l2          μ

  0   0.3502365 -0.2074312  7.4862914  0.5485681  0.0023988 134.575729
  1   0.4857771  0.2575762  0.0148981  0.0001069  0.0001064  15.004043
  2  -0.0000101 -0.0000366 -0.0000017 -0.0000115 -0.0000115  -0.000001
  3  -0.0000068 -0.0000038  0.0000000  0.0000000  0.0000000   0.000000

                 Tan f1 = 0.0046686    Tan f2 = 0.0046454

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

            a = a0 + a1*t + a2*t2 + a3*t3    (or a = Σ [an*tn]; n = 0 to 3)

    where:  a = x, y, d, l1, l2, or μ
            t = t1 - t0  (decimal hours) and t0 = 21.000


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 18.00 ≤ t0 ≤ 24.00 TDT.

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

       Saros Series 129:  Member 51 of 80 eclipses in series.




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Acknowledgment

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"

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Eclipse Predictions & WebMaster: Fred Espenak
Planetary Systems Branch - Code 693
e-mail: espenak@gsfc.nasa.gov

NASA's Goddard Space Flight Center, Greenbelt, Maryland 20771 USA

Last revised: 2004 Jun 30 - F. Espenak