Astronomical Alignments

Astronomical Alignments (HMIMT)

Location: Oregonia, OH 45054 Warren County
Country: United States of America

N 39° 24.437', W 84° 5.416'

  • 0 likes
  • 0 check ins
  • 0 favorites
  • 152 views
Inscription
American Indians who built Fort Ancient used the sun and moon to measure time. By observing the rising location of these celestial objects they knew when to gather together for religious or social events or when to plant crops. They used sunrise locations to predict annual events and moonrise location to measure intervals of several years' duration.

You are at the southwest corner of a nearly perfect square made by four mounds. Three astronomical alignments have been demonstrated from this point.

On the summer solstice, usually June 21, the sun rises in the gap just north of Rt. 350. 2

The maximum northern moonrise 1 occurs approximately 9.3 years after the minimum northern moonrise 3 with this complete lunar cycle taking 18.6 years or one generation.
Details
HM NumberHMIMT
Tags
Placed ByThe Ohio Historical Society
Marker ConditionNo reports yet
Date Added Monday, September 8th, 2014 at 8:22pm PDT -07:00
Pictures
Sorry, but we don't have a picture of this historical marker yet. If you have a picture, please share it with us. It's simple to do. 1) Become a member. 2) Adopt this historical marker listing. 3) Upload the picture.
Locationbig map
UTM (WGS84 Datum)16S E 750529 N 4366015
Decimal Degrees39.40728333, -84.09026667
Degrees and Decimal MinutesN 39° 24.437', W 84° 5.416'
Degrees, Minutes and Seconds39° 24' 26.22" N, 84° 5' 24.96" W
Driving DirectionsGoogle Maps
Area Code(s)937, 513
Closest Postal AddressAt or near 6123 OH-350, Oregonia OH 45054, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

Is this marker missing? Are the coordinates wrong? Do you have additional information that you would like to share with us? If so, check in.

Check Ins  check in   |    all

Have you seen this marker? If so, check in and tell us about it.

Comments 0 comments

Maintenance Issues
  1. Is this marker part of a series?
  2. What historical period does the marker represent?
  3. What historical place does the marker represent?
  4. What type of marker is it?
  5. What class is the marker?
  6. What style is the marker?
  7. Does the marker have a number?
  8. What year was the marker erected?
  9. This marker needs at least one picture.
  10. Can this marker be seen from the road?
  11. Is the marker in the median?