ancient astronomy stonehenge & archeoastronomy greek/roman era (ca. 0) “dark ages” (ca. 1000...
Post on 22-Dec-2015
212 views
TRANSCRIPT
Ancient AstronomyAncient Astronomy
Stonehenge & ArcheoastronomyStonehenge & Archeoastronomy
Greek/Roman Era (ca. 0)Greek/Roman Era (ca. 0)
““Dark Ages” (ca. 1000 AD)Dark Ages” (ca. 1000 AD)
Discussion Question:Discussion Question:
• Stonehenge is a remarkable site. What
makes it so interesting?
• What astronomical alignments are found at
stonehenge? Describe them.
• Do the astronomical alignments imply the
builders knew more than we do; is there
lost or mystical knowledge involved?
Stonehenge
• SW England
• Built in 3 stages:
• 3100 BC– Ditch/embankment
• 2500 BC– Bluestones
• 2300 BC– trilithons
Solstice alignments: sun & moon
How precise is “aligned”?