Moon phase table, is a personality with a moon phase display watch, through the moon phase plate on the table can grasp the lunar changes in the ebb and flow. Most of the moon phase tables have a curved (semicircular) small window on the dial, mostly at twelve o'clock or six o'clock, through which small crescent, winding, full moon and lower moon are displayed Phase change. Normal moon phase watches are often calculated on the 29th of a month, and simple mechanical devices are sufficient. However, the shortcoming is that seven days a year are less than a full month in a four-year period and manual adjustment of errors is required. However, the moon phase device of the complicated function watch counts one month as 12 hours and 45 minutes on the 29th, which is only 57 seconds compared with the average time of lunar revolution. The difference is less than 12 minutes a year. The best way to adjust the moon phase table is to adjust the instructions according to the instruction manual, but if there is no manual at hand, the adjustment will be based on the lunar calendar of the month of May, aligning the moon phase of the moon phase to the middle and then The lunar calendar was adjusted to do. Some months of the moon phase watch in the moon phase plate also has the scale in the figure below, this watch function can be called the age of months. The month age refers to the specific "days" experienced by the various phases (changes) since the new moon, and is calculated based on the approximate 29.5 days of the lunar month (with this specific "days"). The interval from the new moon to the next crescent moon is called a "craze moon." The corresponding relationship between moon phase and month age is roughly as follows: The monthly age of the first month is 7.4 days, the full moon's monthly age is 14.8 days, and the lower limb's monthly age is 22.1 days. Due to the actual change cycle of the lunar new year is 29.53059 days, the moon and the sun are slow and slow as their eyes move. The white and the yellow eclipses have angle and are changing. Therefore, the exact age of the lunar phase needs to consult specific information.
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