lunar revolutions

                          lunar revolutions

月球革命  Lunar revolution-moon movement around the earth.
月球革命长度 Lunar revolution length- the orbit length by the moon around 27days per one time.
月相 Phases of the moon- the step of the moon change waning to waxing.
月全食total lunar eclipse- the sun and moon at same orbit cause moon cover the sun.
半影penumbra- an area with light shadow during the total lunar revolutions
本影umbra- an outside area with the dark shadow during the total lunar revolutions.

 summary:
    at the center of universe the moon keeping change the size by the movement of
the earth.which call:LUNAR REVOLUTION" the moon depend on its position to the sun and earth, the reason why we only see part of moon because surface at different angle. call:PHASE OF THE MOON" it takes 27 days around the earth per one time, which mean lunar revolution length. moon are change the type of the size during the phase of the moon, from the waxing(moon getting bigger)to waning(moon getting smaller).when the total lunar eclipse happen the sun and moon at the same orbit cause moon cover the sun. during total lunar eclipse, there are two parts of the shadow-umbra and penumbra,the umbra is the darkest part of the shadow at the center.the penumbra is the lighter part of the shadow on the outside.


 how is earth affected by movement.
   when the earth star rotation at the orbit cause we have four season. orbit just like the shape of oval. when the earth is close to the sun, we getting summer,when is faraway from the sun we getting winter.


  what did you enjoy most about this project and why?
   i'm enjoy with the topic is interesting to know how the moon getting bigger and smaller cause by the rotation.