Guastra

Private research

Formula laboratory

Each formula is evaluated as written against every locked chart and every centre layer. Formulas are never modified to force agreement; a formula that matches is still only a hypothesis.

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Variables: LD, LM, AGE, ILLUM, GUA, GUA_EM, KI_Y, KI_M, KI_T, D_LEAP, D_NEAR, D_ALM, D_AFS, YEAR, MONTH, DAY, HOUR, MINUTE. Functions: dr (digital root), r9 (reduce to 1–9), floor, round, mod(a,b). Missing inputs yield no value — never a guess.

FormulaA: valueB: valueC: valueTop leftCenterBottom leftBottom right
REJECTED H1 — digital root of Lunar Day (fails Jul 1, 1983: expected D 1)
dr(LD)
0/3
A:—≠7 B:—≠2 C:—≠8
0/3
A:—≠7 B:—≠7 C:—≠7
0/3
A:—≠7 B:—≠6 C:—≠7
0/3
A:—≠5 B:—≠8 C:—≠5
Daily Flying Star — published leap-adjusted convention (default D)
D_LEAP
0/3
A:—≠7 B:—≠2 C:—≠8
0/3
A:—≠7 B:—≠7 C:—≠7
0/3
A:—≠7 B:—≠6 C:—≠7
0/3
A:—≠5 B:—≠8 C:—≠5
Daily Flying Star — nearest 甲子 without leap adjustment (ties unresolved)
D_NEAR
0/3
A:—≠7 B:—≠2 C:—≠8
0/3
A:—≠7 B:—≠7 C:—≠7
0/3
A:—≠7 B:—≠6 C:—≠7
0/3
A:—≠5 B:—≠8 C:—≠5
Daily Flying Star — almanac, first 甲子 on/after 6 qi
D_ALM
0/3
A:—≠7 B:—≠2 C:—≠8
0/3
A:—≠7 B:—≠7 C:—≠7
0/3
A:—≠7 B:—≠6 C:—≠7
0/3
A:—≠5 B:—≠8 C:—≠5
Daily Flying Star — solstice switch, first 甲子 after
D_AFS
0/3
A:—≠7 B:—≠2 C:—≠8
0/3
A:—≠7 B:—≠7 C:—≠7
0/3
A:—≠7 B:—≠6 C:—≠7
0/3
A:—≠5 B:—≠8 C:—≠5
Lunar Month
LM
0/3
A:—≠7 B:—≠2 C:—≠8
0/3
A:—≠7 B:—≠7 C:—≠7
0/3
A:—≠7 B:—≠6 C:—≠7
0/3
A:—≠5 B:—≠8 C:—≠5
Nine Star Ki year
KI_Y
0/3
A:—≠7 B:—≠2 C:—≠8
0/3
A:—≠7 B:—≠7 C:—≠7
0/3
A:—≠7 B:—≠6 C:—≠7
0/3
A:—≠5 B:—≠8 C:—≠5
Nine Star Ki month
KI_M
0/3
A:—≠7 B:—≠2 C:—≠8
0/3
A:—≠7 B:—≠7 C:—≠7
0/3
A:—≠7 B:—≠6 C:—≠7
0/3
A:—≠5 B:—≠8 C:—≠5
Nine Star Ki tendency
KI_T
0/3
A:—≠7 B:—≠2 C:—≠8
0/3
A:—≠7 B:—≠7 C:—≠7
0/3
A:—≠7 B:—≠6 C:—≠7
0/3
A:—≠5 B:—≠8 C:—≠5
Gua (original)
GUA
0/3
A:—≠7 B:—≠2 C:—≠8
0/3
A:—≠7 B:—≠7 C:—≠7
0/3
A:—≠7 B:—≠6 C:—≠7
0/3
A:—≠5 B:—≠8 C:—≠5
Digital root of day of month
dr(DAY)
0/3
A:—≠7 B:—≠2 C:—≠8
0/3
A:—≠7 B:—≠7 C:—≠7
0/3
A:—≠7 B:—≠6 C:—≠7
0/3
A:—≠5 B:—≠8 C:—≠5
Digital root of LD + LM
dr(LD + LM)
0/3
A:—≠7 B:—≠2 C:—≠8
0/3
A:—≠7 B:—≠7 C:—≠7
0/3
A:—≠7 B:—≠6 C:—≠7
0/3
A:—≠5 B:—≠8 C:—≠5

Agreement across three charts is weak evidence; with values limited to 1–9, chance matches are common. Treat full matches as candidates for further independent verification.

Daily Flying Star — historical investigation

The former default omitted the published leap-cycle adjustment. The adopted Nobml/K.Oka convention uses the preceding Jiazi when solstice day index K ≤ 28, otherwise the following Jiazi. A 240-day interval between nominal switches moves the second switch 30 days earlier to Jiawu: winter star 7 ascending, summer star 3 descending. This is a named traditional convention, not universal agreement.

Method1986-05-23Known 71986-05-24Known 81983-06-30Known 21983-07-01Known 1
Leap-adjusted 日家九星 (Nobml/K.Oka 2018; default D)
Nearest 甲子 to solstice
Almanac: first 甲子 on/after 6 qi (usefengshui.com)
Solstice switch, first 甲子 after (absolutelyfengshui.com)

9rando (Japanese calendar) and Nongminli (UTC+08 calendar) both list 7, 8, 2, 1 for these civil date labels. They do not independently validate applying an Asian calendar to an American birth instant: Guastra retains the birth-zone civil date and local midnight. July 1’s noon is a date-only test convention, not a verified birth time.

Transition disagreement remains visible: 9rando gives 7 → 7 → 8 on December 20–22, 1985; Nongminli gives 7 → 6 → 5. The adopted leap convention reproduces 9rando’s switch on December 21 (Jiawu), while both calendars later agree on the four reference dates. June 4–5, 1983 is 9 → 9 in 9rando, matching the ordinary Jiazi switch. No saved prediction or locked fixture has been rewritten.

Blind test

Predict first, reveal later

Predictions are saved with their formulas and a timestamp before the actual chart is entered. Once saved, a prediction is never changed; each can be compared once.

Reference Parameters

Optional manual centres (blank = calculated or unresolved)

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