Enter the significant dates and locations into the calculator to determine the moon phase during those times.

Moon Phase Calculation Formula

The following formula is used to calculate the moon phase on a given date.

Moon Phase = f(Date, Location)

Variables:

  • Date is the specific date you are inquiring about.
  • Location includes the latitude and longitude coordinates of the place.

To calculate the moon phase, consider the date and location to determine the lunar cycle phase.

What is Moon Phase Calculation?

Moon phase calculation refers to the process of determining the phase of the moon on a specific date and time. This involves understanding the lunar cycle and its phases, which include new moon, first quarter, full moon, and last quarter. Accurate moon phase calculation can help in planning events and understanding the moon’s impact on various activities.

How to Calculate Moon Phase?

The following steps outline how to calculate the moon phase using the given formula.

  1. First, determine the specific dates you are interested in.
  2. Next, if needed, determine the geographic coordinates (latitude and longitude) of the location.
  3. Use the formula from above: Moon Phase = f(Date, Location).
  4. Finally, calculate the moon phase by plugging in the values.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem:

Use the following variables as an example problem to test your knowledge.

First Date = 2024-07-20

Second Date = 2024-12-25

Latitude = 34.0522

Longitude = -118.2437