I decided to get out xephem 3.0 and do some calculations for the
upcoming solstice/lunar perigee/full moon. Times are Mountain
Standard Time (UT - 7).
According to the xephem's solver, here are the time and other values
at the solstice (I found this by using the solver to minimize the
solar declination):
Limb Equ: Geo 2000.0 12/22/1999 0:26:37 MST:
RA Dec EaDst Elong Phase RiseTm SetTm
Sun 17:59:59.17 -23:26:21.5 0.9837 7:48 17:04
Moon 5:34:25.99 19:57:13.2 356675 173.1 100 17:28 7:33
Lunar perigee (found by minimizing lunar-earth distance):
Limb Equ: Geo 2000.0 12/22/1999 3:54:08 MST:
RA Dec EaDst Elong Phase RiseTm SetTm
Sun 18:00:37.55 -23:26:21.2 0.9837 7:48 17:04
Moon 5:43:46.84 20:11:20.4 356654 174.9 100 17:28 7:33
Full moon (full moon calculation built in):
Limb Equ: Geo 2000.0 12/22/1999 10:33:19 MST:
RA Dec EaDst Elong Phase RiseTm SetTm
Sun 18:01:51.38 -23:26:19.0 0.9836 7:48 17:04
Moon 6:01:49.93 20:33:15.8 356731 -177.1 100 17:28 7:33
Finally, here is the upcoming perihelion, almost twelve days later
(found by minimizing the solar-earth distance):
Limb Equ: Geo 2000.0 1/02/2000 23:35:12 MST:
RA Dec EaDst Elong Phase RiseTm SetTm
Sun 18:52:59.00 -22:52:49.6 0.9833 7:51 17:12
Moon 16:13:27.56 -16:35:37.9 405794 -37.9 11 4:07 14:40
I am not claiming high precision; I used default settings for
comparison tolerances, etc.
Jim 40N45, 111W53
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| Jim Cobb | 540 Arapeen Dr. #100 | [EMAIL PROTECTED] |
| Parametric | Salt Lake City, UT | (801)-588-4632 |
| Technology Corp. | 84108-1202 | Fax (801)-588-4650 |
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