The following table contains the Besseliam elements for the Partial Solar Eclipse of 2011 Jan 04 .
The geographic coordinates of the eclipse path are listed in the . 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 .
Besselian Elements for the Partial Solar Eclipse of 2011 Jan 04
Non-Central Eclipse
Equatorial Conjunction: 09:16:20.6 TDT J.D. = 2455565.886350
(Sun & Moon in R.A.) (=09:15:14.4 UT)
Ecliptic Conjunction: 09:03:43.1 TDT J.D. = 2455565.877582
(Sun & Moon in Ec. Lo.) (=09:02:36.8 UT)
Instant of 08:51:42.4 TDT J.D. = 2455565.869241
Greatest Eclipse: (=08:50:36.1 UT)
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Gamma = 1.0626 Ephemerides = JPL DE405
Eclipse Magnitude = 0.8576 Lunation No. = 136
ΔT = 66.3 s Saros Series = 151 (14/72)
Lunar Radius k1 = 0.272508 (Penumbra) Shift in Δb = 0.00"
Constants: k2 = 0.272281 (Umbra) Lunar Position: Δl = 0.00"
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Geocentric Coordinates of Sun & Moon at Greatest Eclipse (JPL DE405):
Sun: R.A. = 18h59m14.9s Moon: R.A. = 18h58m23.8s
Dec. =-22°44'21.1" Dec. =-21°46'01.2"
Semi-Diameter = 16'15.9" Semi-Diameter = 15'18.1"
Eq.Hor.Par. = 08.9" Eq.Hor.Par. = 0°56'09.6"
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Polynomial Besselian Elements for: 2011 Jan 04 09:00:00.0 TDT (=t0)
n x y d l1 l2 μ
0 -0.140630 1.055817 -22.74123 0.563610 0.017366 313.81119
1 0.5162745 0.1051383 0.004062 0.0001098 0.0001092 14.996634
2 -0.0000417 0.0001064 0.000006 -0.0000108 -0.0000107
3 -0.0000065 -0.0000014
Tan ƒ1 = 0.0047557 Tan ƒ2 = 0.0047320
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 = 9.000 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 6.00 ≤ t0 ≤ 12.00 TDT.
Note that all times are expressed in Terrestrial Dynamical Time (TDT).
Saros Series 151: Member 14 of 72 eclipses in series.
Predictions for the Partial Solar Eclipse of 2011 Jan 04 were generated using the JPL DE405 solar and lunar ephemerides and a value of ΔT = 66.3 seconds.
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
