Wednesday, October 18, 2017

Climate

The climate follows a series of:

1. The angle that the moon makes with the equator. IIRC these are eleven and an half year blips that follow the extent of the maximum and minimum declination.

2. The impact that the other planets have. These are at distances that are so far away that it is difficult to believe they can have an effect. But they are  always close enough to the sun to affect that and the sun is always close enough to affect the whole solar system.

3. The varying distances to the moon. These are the Apsides.

4. The time of the Lunar Phase.

5. The apparent contra-rotation of the planets. I have forgotten the astrinomical term but since I don't care it doesn't matter.

I have included the processes that cause everyday weather as it is difficult to diagnose where one effect affects the other. Starting with the easiest to see and explain:

The Lunar phase takes on an hexagonal "factor" (is that the term for a variable?) Ignoring the other parts mentioned above, the time can be divided by 6 hours  making a repeat of the 24 hour clock such that at mid day a lunar phase will produce, more or less, the same weather as a phase at mid night. Substantially the same weather as that for 6 am and 6 p.m.
The phase for 1 o'clock will produce  the same weather as that for 7 o'clock.
2 o'clock = 8 o'clock and so on at 6 hour intervals.

When two similar phases occur consecutively the produce what is known as a synergy or synergetic something or other. That is the lad effect build into the system something akin to inertia. Sucha phenomena is difficult to see becaus the declination of the moon has a period that interferes with this.

The declination has a month of I forget. I used to know all this by heart. Getting old. Time for bed.

back sooner or later.
I am really upset that I have forgotten all of this stuff. It was an huge part of my life:

  1. The sidereal month is defined as the Moon's orbital period in a non-rotating frame of reference (which on average is equal to its rotation period in the same frame). It is about 27.32166 days (27 days, 7 hours, 43 minutes, 11.6 seconds). It is closely equal to the time it takes the Moon to pass twice a "fixed" star (different stars give different results because all have a very small proper motion and are not really fixed in position).
  2. A synodic month is the most familiar lunar cycle, defined as the time interval between two consecutive occurrences of a particular phase (such as new moon or full moon) as seen by an observer on Earth. The mean length of the synodic month is 29.53059 days (29 days, 12 hours, 44 minutes, 2.8 seconds). Due to the eccentricity of the lunar orbit around Earth (and to a lesser degree, the Earth's elliptical orbit around the Sun), the length of a synodic month can vary by up to seven hours.
  3. The tropical month is the average time for the Moon to pass twice through the same equinox point of the sky. It is 27.32158 days, very slightly shorter than the sidereal month (27.32166) days, because of precession of the equinoxes.
  4. An anomalistic month is the average time the Moon takes to go from perigee to perigee - the point in the Moon's orbit when it is closest to Earth. An anomalistic month is about 27.55455 days on average.
  5. The draconic month, draconitic month, or nodal month is the period in which the Moon returns to the same node of its orbit; the nodes are the two points where the Moon's orbit crosses the plane of the Earth's orbit. Its duration is about 27.21222 days on average.

Sidereal month  = 27.3 days = one captured rotation.
Synodic Month  = 29.5 days = every 4 phases. 
Draconic month = 27.2 days = declination = how far north or south of the equator = the monthly equivalent of the solar year.

So there is plenty of slip in the system. But what it mean is that if three phases are substantially the same, the first and third are going to be quite a close match. I used to be able to tell the time by the moon and be extension the weather by the time of the phase and thus the time of day by the weather.

If you bother learning this stuff you will find that you are capable of doing the same. Do yourself a favour and don't ever let that go. You will will be badly upset.

Now I feel bloody miserable I am really going to bed!
Damn, it's 4 o'clock I might as well get up. I am not going to be able to sleep now I am upset. And there is no traffic so I can't walk under a bus. I might as well keep on living then.

It is very misty (just this side of foggy) what time is it?
Oct

02 Mo03:05Moon Descending Node
05 Th19:40Full Moon
09 Mo06:51Moon Perigee: 366900 km
11 We19:21Moon North Dec.: 19.6° N
12 Th13:25Last Quarter
14 Sa23:10Moon Ascending Node
19 Th20:12New Moon
25 We03:25Moon Apogee: 405200 km
25 We19:13Moon South Dec.: 19.7° S
27 Fr23:22First Quarter
29 Su07:41Moon Descending Node
Nov04 Sa05:23Full Moon
06 Mo00:09Moon Perigee: 361400 km

It is volcanic eruption o'clock. therefore the phase should be about 4 o'clock
19, 20:12. New Moon. Only four hours out -or two if you advance. Oops!








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