What is the phase of the moon on the night of the eclipse? Why?

What is the phase of the moon on the night of the eclipse? Why?


Full moon! The phase of the moon is the shape of the part of the moon that is illuminated by the sun. The cycle of the phase change is 29.53 days, which is called the new moon, which is the average length of a month in the lunar calendar. When the moon moves between the sun and the earth (the three are not necessarily in a straight line), the hemisphere of the moon that is not illuminated by the sun is toward the earth, which is invisible



Please help me sum up the difference between lunar phase and eclipse,
Please summarize in a more organized way, such as:
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I would like to thank you again


The phase of the moon is the change of the size of the bright part of the moon due to the different position of the observer. The eclipse is the phenomenon that the bright part of the moon can be seen is covered by the shadow of the earth. These are two completely different astronomical phenomena



What is the phase of the moon on the day of the eclipse
What is the relationship among the sun, the earth and the moon


Full moon (watch the sun, on the 15th or 16th of the lunar calendar): 180 degrees;
The sun, the earth and the moon (the earth is between the sun and the moon) are in a line of 180 degrees