On the graphs of the velocity of moon phase.

On the graphs of the velocity of moon phase.

Introduction.
Definition.
Validity of of the values given on the graphs.
Example of the graph of the moon phase velocity.
Unit of measurement used in the graphs.
Letters and signs.

Conventions.
Convention on the beginning of a period in the lunar phase velocity.
Convention on the values of variation of the moon phase velocity.

Utilization.

contents

Definition (2011-08).

.1 The "moon phase velocity” in this study has a specific meaning.

.2 Loosely speaking, it may be considered, as the angular velocity per hour, at which the Moon goes from a new moon position, to the next one. The calculations for the graph are done in this sense.

.3 Though, in this research, it is considered as the average angular velocity, of the changes of the Moon position, with regard to a supposed magnetic meridian.

The values on the graphs.

.4 The values on the graphs are normally valid; they are given as if the aforesaid magnetic meridian would be fixed.

.5 However it is not. Particularly near the magnetic poles, that would not be the case. Because of the solar activity, even at mid latitudes, the times of the phenomena here under study could be affected.

.6 (see examples being gathered on page H.2, concerning the tides at Venice, when the change is > 90 minutes, just after solar perturbances).

Example of
Velocity of the moon phase
daily averages, given in deltins
(1/600 of degree/hr).

	Unit of measuremeent.
.7	The unit of measurement used on these graphs is 1/600 of degree/hr, called deltin (*).
(*)	600 deltins = 1°/hr \|\|\| 1 deltin = (1/600)°/hr
	Universal time.
.8	The grid of the days is in accordance with the universal time (GMT).
	Auxiliary informations.
.9	The first graph give also the days of apogee (capital A), and those of perigee (P). And also the days of new Moon, and the days of full Moon, as approximate indications of the farmer's cycles of the seeds.
.10	In the course of each cycle, the sidereal month, of about 27,3 days, usually there are four changes of angular velocity, called <a, b, c, d> (see conventions).

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	On the graphs of the velocity of moon phase.

	Introduction. Definition. Validity of of the values given on the graphs. Example of the graph of the moon phase velocity. Unit of measurement used in the graphs. Letters and signs.
	Conventions. Convention on the beginning of a period in the lunar phase velocity. Convention on the values of variation of the moon phase velocity.
	Utilization.

	contents

	Definition (2011-08).
.1	The "moon phase velocity” in this study has a specific meaning.
.2	Loosely speaking, it may be considered, as the angular velocity per hour, at which the Moon goes from a new moon position, to the next one. The calculations for the graph are done in this sense.
.3	Though, in this research, it is considered as the average angular velocity, of the changes of the Moon position, with regard to a supposed magnetic meridian.
	The values on the graphs.
.4	The values on the graphs are normally valid; they are given as if the aforesaid magnetic meridian would be fixed.
.5	However it is not. Particularly near the magnetic poles, that would not be the case. Because of the solar activity, even at mid latitudes, the times of the phenomena here under study could be affected.
.6	(see examples being gathered on page H.2, concerning the tides at Venice, when the change is > 90 minutes, just after solar perturbances).
	Example of Velocity of the moon phase daily averages, given in deltins (1/600 of degree/hr).