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CZ19980817_A ·The 1998 season ·Czech Republic

Cermná

17 August 1998·Cermná·66 ft (20.1 m) across

Plate — one of 1 image on this record · 575×415 px every image →

Reported 17 August 1998 at Cermná. One archive recorded it, so nothing about it can be cross-checked.

The record

date
17 August 1998 day precision
place
Cermná, Czech Republic no other name or place string on any source record · name from the cropcirclecenter.com name
crop
not recorded by any source
size
66 ft (20.1 m) acrossas written: < 20 m | < 66 ft20 m across100 m
recorded by
cc · cropcirclecenter.com
images
1 · 1 diagram
writing
nothing was written about this formation on any source

Where exactly

20 km
coordinate
50.549990, 15.769620
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)

sitekindcreditbasiscaptionsizefilesource page
cc diagram cropcirclecenter.com / Bertold Zugelder site default 575×415
34.1 KiB image/jpeg
image 12d12ac68490 https://www.cropcirclecenter.com/date/1998/199808.html

Date

17 August 1998, to day precision. What a source records is the day a formation was found and reported.

reported by
cc: 17 August 1998
weekday
Monday, day 229 of the year, ISO week 34, summer
sun and moon
36.7 days before the September equinox; moon waning crescent (22% lit), 9.4 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
50.549990, 15.769620 — place, ±2,000 m, by geonames, from the cc record
on a map
OpenStreetMap
siteplacecountycountrygrid refwhat3wordsfix
ccKrálovéhradecky krajCzech Republic 50.549990, 15.769620 place / geonames

Crop and size

crop
not recorded (cc: —)
diameter
66 ft (20.1 m)
size as written
< 20 m | < 66 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 CZ19980817_A
name Cermná
location
county Královéhradecky kraj
country Czech Republic
date reported 1998-08-17
date precision day
crop
size < 20 m | < 66 ft
diameter (ft) 66
grid reference
what3words
map link
credits cropcirclecenter.com / Bertold Zugelder
source page https://www.cropcirclecenter.com/date/1998/199808.html
link to the entity singleton
decided by none on 2026-09-11
warnings no_formation_page
record cc/db17507bf8d35…
raw record view: /formation/cc/db17507bf8d35aec54d83bb71c2c437ac255e60619fb0cf4b72d5fac9956bf12 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.

diagramrotational symmetryelementsringsmirrorfill
cc 12d12ac6 ≈ none found 2 1 0.995 0.2018

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 12d12ac6— 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
Cold Ashton 16 August 1998, Cold Ashton
next
Lohja 19 August 1998, Lohja
previous in CZ
Straz pod Ralskem 10 August 1998
next in CZ
Planice 7 September 1998
same day
Midale (Midale) · Areley Common (Areley Common) · Hackpen Hill (Hackpen Hill) · Halisham (Halisham) · Stanton St Bernard (Stanton St Bernard)
within 7 days and 25 km
none, or this formation has no coordinate at place confidence or better

In place

The nearest formations the archive can place.

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/CZ19980817_A.json · row in index/manifest.jsonl
input digests
entity 2df785684f8b · images ea4e53bbb04f · texts 4f53cda18c2b · geo b08f214a46c0