Stars, Planets and The Moon appear to move EAST-WEST across the sky.
Sidereal Day = Time it takes the EARTH to rotate 360 degrees. ( 23H 56M)
Solar Day = 24 hours.
Stars appear to move across the sky once every 23 HOURS 56 MINUTES.
The Moon appears to move across the sky once every 24 HOURS 49 MINUTES.
Earth rotates round the sun = different stars seen at different times of year.
Planets change positions compared to background stars.
Lunar Cycle = Moon's apperance during 28 day orbit of Earth.
Solar Eclipse = Moon passes between Earth and Sun.
Lunar Eclipse = Earth passes between Sun and Moon.
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