Method and checks

Independent Stjernerne concept for consideration via Juliet, 21 October 2026. No endorsement or connection to Liz Greene’s Astrodienst programmes.

Calculated basis

Geocentric apparent tropical positions; Swiss Ephemeris 2.10.03 with DE441 data; Placidus houses by ecliptic longitude. Sun through Pluto plus Chiron; no nodes in this report scope. Alex Morgan is fictional: 12 May 1988 14:20 BST London = 13:20 UTC; 51.5074° N, 0.1278° W. Time zones use historical IANA rules.

Prototype orbs: conjunction/square/opposition involving Sun or Moon 8°, other ordinary bodies 6°; trine/sextile 4°. Chiron overrides: 3° for conjunction/square/opposition, 2° for trine/sextile. Limits are inclusive and cross-sign aspects are measured by angle.

Fixed relationship focus: Moon and Venus candidates first, then luminary anchors before others, then relative orb (orb/limit). Select two different personal anchors; add up to two directly linked modifiers ranked by relative orb. This reproduces Moon–Neptune with Neptune–Pluto and Moon–Saturn; Venus–Uranus with Saturn–Uranus and Venus–Saturn in the example. This is our operational proposal, not Liz’s algorithm. Axis-contact selection is not implemented in the short guide.

Verification

• Eleven natal houses and positions and all six selected contacts compared with the retained sample. The new DE441 calculation differs from the old Moshier table by at most 1.555 arcseconds, for the Moon; the remaining bodies differ by less than 0.171 arcsecond. The unchanged PDF retains its original second-level figures, while the live generator uses DE441.
• Eight native/browser scenarios and 1,675 numeric values; maximum absolute difference 0.000000013. Includes historical daylight saving, an invalid clock time, both readings of an ambiguous time, changed data and unknown time.
• All eleven bodies independently compared with NASA/JPL at the exact birth epoch: maximum coordinate difference 0.113 arcsecond. This supersedes the original PDF’s open point about independent astronomical verification.
• Eleven one-minute samples over ±5 minutes show changing Moon and Mercury houses. Their houses carry no interpretive weight in the guide. This is sensitivity checking, not rectification.
• The unchanged 25-page PDF matches the retained final visual review and preservation checksum.

Calculation audit · Browser/native checks · NASA/JPL comparison · Original fictional workbook

What still needs agreement

Correct contact and interest; method, synthesis, editorial review, authorship, rights, brand use and economics. The interpretation and exercises are original, AI-assisted proposals, not licensed Liz Greene text. A complete customer service needs an approved interpretation library, validated ordering and consent, test payment, a reviewed production queue and private delivery. Nothing is connected to live customer payments or email.

Primary sources and design

CPA · Liz’s CPA profile · CPA contact · Swiss Ephemeris · NASA/JPL · Source and licences

The muted blue-grey and white, Maven Pro body and Abel headings follow CPA’s current site. The illustration is original. No logo, portrait or Tate artwork has been copied. Google Fonts’ open font licences are included.