In this article, we shall discuss NCERT Class 8 Science chapter 17 – Stars and the Solar System. Celestial bodies comprise planets, the moon, stars and other heavenly bodies. Astronomy is a discipline of science concerned with the study of celestial bodies and their occurrence. One of the celestial body observations that we may make is the change in the moon's shape every day. The full moon day is when the entire circle of the moon is visible. The moon's phases are the several shapes of the luminous part of the moon observed for a month.
Moon and its different phases
The moon’s phases are the changing shapes of the elucidated part of the moon as seen from Earth. It takes around 29 days to cycle from a full moon to a new moon to another full moon.
Understanding the Moon's Phases
The moon does not emit its own light, instead reflects the Sun's light. Distinct areas of the moon's surface are illuminated as it rotates around the earth, giving us a different form every day. The side of the moon that faces the sun will be illuminated as it circles around the planet Earth. Due to the sun's brightness, the moon will be illuminated. The moon phases are the various shapes of the lit part of the moon that can be seen from our planet, Earth. Furthermore, each of these stages occurs every 29.5 days.
The Dark Side of the Moon
The moon's rotation on its axis and revolution around the Earth takes about the same amount of time. (It takes 27.3 days). The dark side of the moon is the side of the moon that always faces away from the earth. As a result, a viewer always sees the same face of the moon from Earth.
The Moon's Surface
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