Table 2
SHADOW CONTACTS AND CIRCUMSTANCES:
ANNULAR SOLAR ECLIPSE OF 10 MAY 1994
Ephemeris True
TDT Latitude Longitude Longitude*
External/Internal
Contacts of Penumbra: P1 14:13:11.3 4.951 -125.778 -125.530
P2 16:55:59.3 56.818 165.914 166.163
P3 17:28:40.1 70.370 70.344 70.593
P4 20:11:35.5 23.794 -25.710 -25.461
Extreme
North/South Limits
of Penumbral Path: N1 16:49: 7.9 61.992 159.981 160.230
S1 15: 4:40.2 -17.841 -131.186 -130.938
N2 17:35:29.7 72.160 87.594 87.843
S2 19:20:16.2 1.069 -20.622 -20.373
External/Internal
Contacts of Umbra: U1 15:21:36.4 13.067 -145.545 -145.296
U2 15:26:58.9 14.081 -147.232 -146.983
U3 18:57:48.6 32.786 -3.494 -3.246
U4 19: 3: 9.4 31.797 -5.281 -5.033
Extreme
North/South Limits
of Umbral Path: N1 15:25:43.8 14.800 -147.164 -146.916
S1 15:22:53.7 12.338 -145.622 -145.374
N2 18:59: 3.0 33.486 -3.478 -3.230
S2 19: 1:52.7 31.087 -5.280 -5.031
Extreme Limits
of Center Line: C1 15:24:17.3 13.563 -146.383 -146.134
C2 19: 0:29.4 32.281 -4.396 -4.147
Instant of
Greatest Eclipse: G0 17:12:26.5 41.537 -84.369 -84.120
Circumstances at
Greatest Eclipse: SunÕs Altitude = 65.7” Path Width = 230.1 km
SunÕs Azimuth = 167.0” Central Duration = 6m 12.7s
_____________________________________________________________________________
Ephemeris Longitude is the terrestrial dynamical longitude assuming a
uniformly rotating Earth.
* True Longitude is calculated by correcting the Ephemeris Longitude for
the non-uniform rotation of Earth.
(T.L. = E.L. - 1.002738*ĘT/240, where ĘT (in seconds) = TDT - UT)
Note: Longitude is measured positive to the East.
Since ĘT is not known in advance, the value used in the predictions is an
extrapolation based on pre-1992 measurements. Nevertheless, the actual
value is expected to fall within ±0.3 seconds of the estimated ĘT used here.