Valkenburg
NL19930720_A20 July 1993·Valkenburg
Reported 20 July 1993 at Valkenburg. One archive recorded it, so nothing about it can be cross-checked.
The record
- date
- 20 July 1993 (day precision)
- place
- Valkenburg
The Netherlands - crop
- not recorded by any source
- size
- not recorded
as written: 10 + 15 m | 33 + 49 ft - 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
- 50.865230, 5.832050
- how it was got
- geonames
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 35.6 KiB image/jpeg |
image 64d47710ff72 | https://www.cropcirclecenter.com/date/1993/199307.html |
Date
20 July 1993, to day precision. What a source records is the day a formation was found and reported.
- reported by
- cc: 20 July 1993
- weekday
- Tuesday, day 201 of the year, ISO week 29, summer
- sun and moon
- 29.1 days after the June solstice; moon waxing crescent (2% lit), 13.0 days before 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
- 50.865230, 5.832050 — place, ±2,000 m, by geonames, from the cc record
- on a map
- OpenStreetMap
| site | place | county | country | grid ref | what3words | fix |
|---|---|---|---|---|---|---|
| cc | Limburg | The Netherlands | 50.865230, 5.832050 place / geonames |
Crop and size
- crop
- not recorded (cc: —)
- diameter
- not recorded by any source
- size as written
- 10 + 15 m | 33 + 49 ft
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 | NL19930720_A |
| name | Valkenburg |
| location | |
| county | Limburg |
| country | The Netherlands |
| date reported | 1993-07-20 |
| date precision | day |
| crop | |
| size | 10 + 15 m | 33 + 49 ft |
| diameter (ft) | |
| grid reference | |
| what3words | |
| map link | |
| credits | cropcirclecenter.com / Bertold Zugelder |
| source page | https://www.cropcirclecenter.com/date/1993/199307.html |
| link to the entity | singleton decided by none on 2026-09-11 |
| warnings | no_formation_page |
| record | cc/d9c5fc61feea8… raw record view: /formation/cc/d9c5fc61feea8c1f9608c5153f1c284322948b77810fdc68825d2719bc454752 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 64d47710 | ≈ none found | 2 | 1 | 0.992 | 0.2916 |
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 64d47710— 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
- Napoleon 19 July 1993, Napoleon
- next
- Harsewinkel 21 July 1993, Harsewinkel
- previous in NL
- Roermond 13 July 1993
- next in NL
- Sittard 21 July 1993
- same day
- Etchilhampton (Etchilhampton) · Rockley (Rockley)
- within 7 days and 25 km
- Houthem 24 July 1993, 2.9 km away, 4 day(s) apart · Houthem 26 July 1993, 2.9 km away, 6 day(s) apart · Sittard 21 July 1993, 15.0 km away, 1 day(s) apart · Schneeberg 27 July 1993, 15.8 km away, 7 day(s) apart
In place
The nearest formations the archive can place.
Valkenburg27 June 2004Valkenburg
0 m away, 2004-06-27
Houthem24 July 1993Houthem
2.9 km away, 1993-07-24 Houthem26 July 1993
Houthem
2.9 km away, 1993-07-26
Wijngoed Fromberg17 August 1996Wijngoed Fromberg
4.8 km away, 1996-08-17
Elkenrade Wiljire8 August 1996Elkenrade Wiljire
6.6 km away, 1996-08-08
Elkenrade1999Elkenrade
6.6 km away, 1999
- same county and year
- none
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/NL19930720_A.json · row in index/manifest.jsonl
- input digests
- entity 2092279aeb6e · images bf26b7a049d6 · texts 4f53cda18c2b · geo 7a8034015ec9