Because the Earth is obscuring part of the moon's disc from the sun - creating a partial shadow.
Full Moon...When The Side Of The Moon We See Is Fully Lit.
Because the Earth is not always between the Sun and the Moon where you can see the fully lit side of the Moon. Try lighting a ball with a flashlight in a dark room. You can only light half of it at a time.
When we see the moon as a perfect circle, it is called a "full moon." This phase occurs when the Earth is positioned between the sun and the moon, allowing the sun's light to fully illuminate the moon's surface. During a full moon, the moon appears as a bright, round disk in the night sky.
Despite a popular belief, the Moon is not only seen at night. Depending on where the Moon is in its orbit round the Earth, may mean the Moon is in the sky during daylight. The bright sky makes it very difficult to see the Moon.
Some people expect to see the Sun during the day, and the Moon in the darkness of the night. But, depending on the position the Moon has reached in its orbit round the World, the Moon may appear during the day. Once the Sun is shining brightly, the Moon is less, if not impossible to see, because of the brightness of the daylight. Early dawn or twilight, when the sky is not too bright is the best time to see that the Moon, in all its phases, can appear during the day.
When we see the entire sunlight side of the Moon, it is called a "full moon." During this phase, the Earth is positioned between the Sun and the Moon, allowing the Sun's light to fully illuminate the Moon's surface as viewed from Earth. This results in a bright, round appearance in the night sky.
You can see the moon for about 8 hours in the day
A full moon appears completely round because it is positioned directly opposite the sun in relation to the Earth, allowing the sun's light to illuminate the entire face of the moon that is visible from Earth. This perspective means that we see the entire illuminated hemisphere, creating the characteristic circular shape. Additionally, the moon is a nearly spherical object, which contributes to its round appearance when fully lit.
Yes, it can be argued that Moon has a day time and night time. Day time is when the moon is shining bright above the sky, night time is when the moon is dark. Hence the term "Dark Side of the Moon".
You can see the moon sometimes
The only day on which you generally do not see the Moon is on the day of the "new" moon, when the Moon is quite near the Sun in the sky. On any other day of the 29-day cycle, you will - weather permitting! - be able to see the Moon, either in the morning or in the evening.
The lighted side of the Moon seen from Earth is the same during a full moon. At this phase, the Earth is positioned between the Sun and the Moon, allowing us to see the entire illuminated portion of the Moon's surface. This alignment results in the Moon appearing fully round and bright in the night sky.