What are the astronomical objects that dominate our lives?
Sun - appears to go around the earth once per day in westerly direction - path changes in a regular way, repeating every year
Moon - appears to go around the earth slightly faster than sun - so it “laps’ the sun each 28 days – a lunar month
Stars - “millions” all appear to go around the earth together in regular paths slightly faster than the sun – eternal, unchanging!
Determines the calendar
- Year -- Sun
- Month -- Moon
- Week -- phases of the moon
- Day -- Sun