7. Shadows to Scale

8. Lunar Eclipse Geometry

9. Total Solar Eclipse Geometry

10. Lunar Phase Geometry Solar Eclipse: @ New Moon Lunar Eclipse: @ Full Moon

11. Shadows to Scale

12. Eclipses Can Only Occur Near Lunar Orbit NODES

13. Plane of Moon’s Orbit is Inclined 50 to Ecliptic

14. Eclipse “Seasons” -- Every 6 Months

15. Satellite Images of Moon Shadow Crossing Earth

16. Solar Eclipse Tracks

17. Origin of “Blood-Red” Lunar Eclipses

18. Stonehenge

19. Megalithic Sites in the British Isles

23. Silbury Hill

24. Silbury Hill

25. Stonehenge-Avebury Region

26. Stonehenge

29. Stonehenge Megaliths

30. Stonehenge: Sarcen Circle

31. Stonehenge: Trilithons

32. Sarcen Uprights

33. Stonehenge: Mortise & Tenon Joints

34. Stonehenge: Historical Development

35. Stonehenge: View of Heelstone from Center

37. Summer Solstice Sunrise Over Heelstone

38. Midsummer Sunrise Over Heelstone

40. The Saros Cycle at Stonehenge Around 50 BC the Sicilian historian Diodorus described a temple often identified as Stonehenge: …“Hecateus [c 350 BC] and certain others say that in the region beyond the land of the Celts [Gaul] there lies in the ocean an island no smaller than Sicily. This island… is inhabited by the Hyperboreans… there is also on the island a magnificent sacred precinct of Apollo and a notable temple adorned with many votive offerings and spherical in shape. They also say how the moon viewed from this island appears to be but a little distance from the earth… the god visits the island every 19 years, the period in which the return of the stars [astron] to the same place in the heavens is accomplished; and for this reason the 19-year period is called by the Greeks the year of Meton” (Diodorus Siculus, II).