Besselian Elements for the Partial Solar Eclipse of 2007 Sep 11

Fred Espenak

The following table contains the Besselian elements for the Partial Solar Eclipse of 2007 Sep 11 .

The global visibility of the eclipse is shown on an Orthographic Map .


            

Besselian Elements for the Partial Solar Eclipse of 2007 Sep 11

Non-Central Eclipse

Equatorial Conjunction: 13:43:46.1 TDT J.D. = 2454355.072061 (Sun & Moon in R.A.) (=13:42:40.7 UT) Ecliptic Conjunction: 12:45:19.3 TDT J.D. = 2454355.031473 (Sun & Moon in Ec. Lo.) (=12:44:13.9 UT) Instant of 12:32:24.4 TDT J.D. = 2454355.022504 Greatest Eclipse: (=12:31:19.1 UT) --------------------------------------------------------------------------- Gamma = -1.1255 Ephemerides = VSOP87/ELP2000-85 Eclipse Magnitude = 0.7507 Lunation No. = 95 ΔT = 65.3 s Saros Series = 154 ( 6/71) 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/ELP2000-85): Sun: R.A. = 11h17m20.8s Moon: R.A. = 11h15m21.9s Dec. =+04°35'13.2" Dec. =+03°40'57.3" Semi-Diameter = 15'53.2" Semi-Diameter = 15'00.5" Eq.Hor.Par. = 08.7" Eq.Hor.Par. = 0°55'05.0" --------------------------------------------------------------------------- Polynomial Besselian Elements for: 2007 Sep 11 13:00:00.0 TDT (=t0) n x y d l1 l2 μ 0 -0.331084 -1.101686 4.58239 0.562387 0.016168 15.81802 1 0.4538838 -0.2480757 -0.015244 0.0000830 0.0000826 15.004752 2 -0.0000105 0.0000277 -0.000001 -0.0000102 -0.0000101 3 -0.0000056 0.0000031 Tan ƒ1 = 0.0046449 Tan ƒ2 = 0.0046217 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 = 13.000 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 10.00 ≤ t0 ≤ 16.00 TDT. Note that all times are expressed in Terrestrial Dynamical Time (TDT). Saros Series 154: Member 6 of 71 eclipses in series.

Links for the Partial Solar Eclipse of 2007 Sep 11


Eclipse Predictions

Predictions for the Partial Solar Eclipse of 2007 Sep 11 were generated using the VSOP87/ELP2000-85 solar and lunar ephemerides and a value of ΔT = 65.3 seconds. The luanr coordinates have been calculated with respect to the Moon's Center of Mass. They DO NOT include a correction to the Center of Figure, or the effects of mountains and valleys along the edge of the Moon.

Acknowledgments

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


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