Phases of Moon

Things to remember

• When we observe the sky daily for some days, we find that the moon changes its shape every day. It is called phases of the moon.
• When the moon forms an angle of 0 ͦ  from the plane of earth’s orbit, the whole dark part of the moon faces towards the earth and hence any part of the moon is not seen i.e. is a new moon(m1).
• When moon forms an angle of 180 ͦ  from the plane , the moon is seen completely round, which is called full moon.