Silbury Hill
UK19890629_F29 June 1989·Silbury Hill, Wiltshire
Reported 29 June 1989 at Silbury Hill, Wiltshire. One archive recorded it, so nothing about it can be cross-checked.
The record
- date
- 29 June 1989 (day precision)
- place
- Silbury Hill
Wiltshire
England - crop
- not recorded by any source
- size
- not recorded
- recorded by
- cc
- images
- 1 · 1 diagram
- writing
- nothing was written about this formation on any source
Also called
Nothing else. No other name or place string appears on any source record for this formation.
Where exactly
- coordinate
- 51.415755, -1.857405
- how it was got
- os open names
place, to within 2,000 m, from the cc record - on a map
- OpenStreetMap
No source publishes a coordinate for any formation in this archive. Every coordinate here is derived from the place name a source printed, and this page says how precise that makes it rather than rounding it away.
Images
1 image(s) on this formation's own source records. Click a tile for the full image; the bytes are fetched when you ask for them and are not stored in this page.
Diagrams (1)
| site | kind | credit | basis | caption | size | file | source page |
|---|---|---|---|---|---|---|---|
| cc | diagram | cropcirclecenter.com / Bertold Zugelder | site default | 575×415 43.1 KiB image/jpeg |
image 962edbe94795 | https://www.cropcirclecenter.com/date/1989/198906.html |
Date
29 June 1989, to day precision. What a source records is the day a formation was found and reported.
- reported by
- cc: 29 June 1989
- weekday
- Thursday, day 180 of the year, ISO week 26, summer
- sun and moon
- 8.1 days after the June solstice; moon waning crescent (17% lit), 10.2 days after the full moon (computed at 12:00 UTC; a reported date is a discovery date, not a creation date)
Place
What each source printed, and the coordinate derived from it. No source in this archive publishes a coordinate of its own.
- coordinate
- 51.415755, -1.857405 — place, ±2,000 m, by os_open_names, from the cc record
- on a map
- OpenStreetMap
| site | place | county | country | grid ref | what3words | fix |
|---|---|---|---|---|---|---|
| cc | Wiltshire | England | 51.415755, -1.857405 place / os_open_names |
Crop and size
crop and size not recorded by any source
Source records
What each source published, side by side. A row whose values differ across the sources is marked: the archive prints the disagreement rather than choosing a winner.
| field | cc cropcirclecenter.com |
|---|---|
| id / slug | UK19890629_F |
| name | Silbury Hill |
| location | |
| county | Wiltshire |
| country | England |
| date reported | 1989-06-29 |
| date precision | day |
| crop | |
| size | |
| diameter (ft) | |
| grid reference | |
| what3words | |
| map link | |
| credits | cropcirclecenter.com / Bertold Zugelder |
| source page | https://www.cropcirclecenter.com/date/1989/198906.html |
| link to the entity | singleton decided by none on 2026-09-11 |
| warnings | no_formation_page |
| record | cc/ce8d7f43f9f3d… raw record view: /formation/cc/ce8d7f43f9f3d5bf12114577f60cc9c34469824d8dd6f4e43dc2fb2922f26834 in the preview app |
Texts
no text documents in the archive for this formation
Claims about this formation
no claim was extracted from a text about this formation
Geometry
1 diagram file(s) on this page. measured from the diagram itself, and experimental: the extractor's rotational order is right on 88.8 % of a 200-diagram hand-labelled set against a gate of 90 %, so read a number here beside the picture rather than instead of it.
| diagram | rotational symmetry | elements | rings | mirror | fill |
|---|---|---|---|---|---|
| cc 962edbe9 | ≈ none found | 5 | 1 | 0.977 | 0.0868 |
Experimental, and marked ≈ wherever it appears. These numbers are read off a drawing, not off the field: the extractor's rotational order agrees with a hand-labelled set on 88.8 per cent of 200 diagrams against a gate of 90 per cent, its element count is within one on 97.5 per cent, and its ring count is not calibrated at all. Nothing in the analysis tree is derived from the rotational order while that gate is unmet.
Diagrams that look like these: cc 962edbe9— the nearest by perceptual hash. The whole archive is browsable by shape in the shape section, and this formation's own diagrams go straight into that grid: show them in the grid.
Neighbours
In time
- previous
- Silbury Hill 28 June 1989, Silbury Hill
- next
- Silbury Hill 30 June 1989, Silbury Hill
- previous in UK
- Silbury Hill 28 June 1989
- next in UK
- Silbury Hill 30 June 1989
- same day
- Beckhampton (Beckhampton) · Beckhampton (Beckhampton) · Norton Bavant (Norton Bavant) · Silbury Hill (Silbury Hill) · Silbury Hill (Silbury Hill)
- within 7 days and 25 km
- Silbury Hill 23 June 1989, 0 m away, 6 day(s) apart · Silbury Hill 28 June 1989, 0 m away, 1 day(s) apart · Silbury Hill 29 June 1989, 0 m away, 0 day(s) apart · Silbury Hill 29 June 1989, 0 m away, 0 day(s) apart · Silbury Hill 30 June 1989, 0 m away, 1 day(s) apart · Silbury Hill 30 June 1989, 0 m away, 1 day(s) apart · Silbury Hill July 1989, 0 m away · Silbury Hill July 1989, 0 m away · Beckhampton 23 June 1989, 1.2 km away, 6 day(s) apart · Beckhampton 29 June 1989, 1.2 km away, 0 day(s) apart · Beckhampton 29 June 1989, 1.2 km away, 0 day(s) apart · Beckhampton 4 July 1989, 1.2 km away, 5 day(s) apart · Beckhampton 4 July 1989, 1.2 km away, 5 day(s) apart · West Lavington July 1989, 18.2 km away
In place
The nearest formations the archive can place.
Silbury Hill15 July 1988Silbury Hill
0 m away, 1988-07-15
Silbury Hill26 July 1988Silbury Hill
0 m away, 1988-07-26
Silbury Hill30 July 1988Silbury Hill
0 m away, 1988-07-30
Silbury Hill10 May 1989Silbury Hill
0 m away, 1989-05-10
Silbury Hill23 June 1989Silbury Hill
0 m away, 1989-06-23
Silbury Hill28 June 1989Silbury Hill
0 m away, 1989-06-28
- same county and year
- Killeen Mor 9 August 1989 · Killeen Mor 9 August 1989 · Avebury Trusloe 10 May 1989 · Avebury Trusloe 10 May 1989 · Silbury Hill 10 May 1989 · Heytesbury 15 May 1989 · Beckhampton 17 May 1989 · Beckhampton 17 May 1989 · Beckhampton 28 May 1989 · Beckhampton 28 May 1989 · Whiteparish 28 May 1989 · Avebury Trusloe 29 May 1989 · Bratton 29 May 1989 · Bratton 29 May 1989 · Scratchbury Hill 2 June 1989 · Calstone Wellington 3 June 1989 · Heytesbury 4 June 1989 · Heytesbury 4 June 1989 · Heytesbury 4 June 1989 · Heytesbury 4 June 1989 and 48 more
Provenance
- entity built at
- 2026-09-11T19:20:39Z (derived from the link decisions, not from this build)
- index run ids
- none
- reviews applied
- none
- open queue pairs
- none
- entity record
- index/formations/UK19890629_F.json · row in index/manifest.jsonl
- input digests
- entity 7f88e9a32646 · images 230354558957 · texts 4f53cda18c2b · geo b2bde86c42ec