Sources
Every record below has been verified against live catalogues, resolvers, or publishers and carries its identifiers, licence status, and evidence category. Records that could not yet be verified remain private and are excluded from this page.
Read our scientific-status statement Where astronomy ends, where interpretation begins, and what the published evidence says about astrological claims.
How this registry works
Sources enter the registry citation-first. A record appears publicly only after its bibliographic details and rights status have been verified against live catalogues or resolvers. Copyrighted works are cited and summarised, never reproduced; public-domain and Creative Commons statuses are labelled per edition, because rights attach to editions, not to ancient works.
2 pending records are registered but not yet verified, and are therefore not displayed.
A double-blind test of astrology
Shawn Carlson · 1985
Secondary sourceModern WesternScientific study
Nature 318 (6045), pp. 419-425 · 1985
Registry notes: Frequently cited double-blind experiment in which astrological natal-chart matching of personality profiles performed no better than chance. Bibliographic details (title, author, journal, volume 318, issue 6045, pages 419-425, year 1985) confirmed against the Crossref metadata record for the DOI on the access date.
Contested points: Later commentators have debated aspects of the study design; the platform reports the study and the surrounding debate as part of the scientific-evaluation layer, not as a settled verdict on every methodological point.
A History of Western Astrology, Volume I: The Ancient and Classical Worlds
Nicholas Campion · 2009 (paperback edition consulted)
Secondary sourceBabylonianHellenisticCross-traditionHistorical scholarship
Continuum · 2009, Paperback edition.
Registry notes: Academic history of Western astrology from Mesopotamia through the classical world, by a historian of astrology and cultural astronomy. ISBN, title, author, publisher (Continuum), and 2009 paperback publication year confirmed against independent bibliographic records on the access date; the volume was also reviewed in the academic press.
Basics of Space Flight, Chapter 2: Reference Systems
NASA Science · current (living reference page)
ReferenceCross-traditionAstronomical fact
Registry notes: NASA's reference-systems primer, used for the astronomical definition of the ecliptic: the plane in which Earth orbits the Sun, tilted 23.4 degrees from the celestial equator, whose great circle on the celestial sky is where the Sun and planets appear to travel; the vernal equinox is one of its intersections with the celestial equator. Title, publisher, and these statements confirmed by direct retrieval on the access date.
Christian Astrology, Modestly Treated of in Three Books
William Lilly · 1647
Primary sourceRenaissance & early modernHistorical primary source
T. Brudenell for J. Partridge & H. Blunden, London · 1647, Digitised copy (894 images) in the Wellcome Collection, catalogue EPB/B/33606, carrying the Public Domain Mark.
Registry notes: The most influential English-language practical astrology manual of the early modern period, covering the use of an ephemeris, horary questions, and nativities. Title, author, imprint, publication year, catalogue number, digitisation, and Public Domain Mark confirmed directly against the Wellcome Collection catalogue record on the access date.
Explanatory Supplement to the Astronomical Almanac
Sean E. Urban (editor); P. Kenneth Seidelmann (editor) · 2013
ReferenceCross-traditionAstronomical fact
Sean E. Urban and P. Kenneth Seidelmann · University Science Books · 2013, Third edition; 676 pages. The standard explanatory reference accompanying The Astronomical Almanac.
Registry notes: The standard explanatory reference accompanying The Astronomical Almanac, covering time scales, Earth-orientation quantities and celestial reference systems. Held in the registry as the reference work behind the platform's definitions of the technical quantities the calculation service reports in its provenance panel: sidereal time, the obliquity of the ecliptic, nutation, the equation of the equinoxes, Julian dates and the UT1/UTC time scales. Cited for standard definitional content only; no page number, table or figure is attributed to it, because none was consulted. Bibliographic details (title, both editors, publisher, 2013 edition, 676 pages, ISBN-13 9781891389856 and ISBN-10 1891389858) confirmed against the Open Library edition record on the verification date.
Hellenistic Astrology: The Study of Fate and Fortune
Chris Brennan · 2017
Secondary sourceHellenisticModern WesternModern practitioner interpretation
Amor Fati Publications · 2017, Paperback edition.
Registry notes: A widely used modern survey of Hellenistic astrology's history, techniques, and revival, written by a practitioner-researcher. ISBN, title, author, publisher, and 2017 publication year confirmed against multiple independent bookseller and bibliographic records on the access date. Per the source-ingestion plan, a modern practitioner-authored book: cite as modern interpretation and historical survey, anchored by academic sources for contested historical claims.
History of Western Astrology Volume II: The Medieval and Modern Worlds
Nicholas Campion · 2009
Secondary sourceIslamic-medievalRenaissance & early modernModern WesternHistorical scholarship
Bloomsbury Publishing Plc · 2009, 392 pages, as recorded by the consulted catalogue edition record.
Registry notes: Companion volume to the already-registered Volume I, carrying the history of Western astrology through the medieval, early-modern and modern periods, including the twentieth-century popular press, which is the period Volume I does not cover and the period the daily-horoscope surface needs. Title, subtitle, author, publisher, publication year, pagination and ISBN-13 were read from the Open Library edition record OL48620736M on the access date; nothing was recalled from memory. Cited for the historical placement of the newspaper sun-sign column only.
Milankovitch (Orbital) Cycles and Their Role in Earth's Climate
NASA Science · 2020 (last updated 2024)
ReferenceCross-traditionAstronomical fact
Registry notes: Official NASA Science explainer describing, among other orbital cycles, axial precession: the slow wobble of Earth's rotation axis with a cycle of roughly 25,771.5 years. Used for the astronomical fact of precession, which underlies the drift between the tropical zodiac and the constellations. Title, publisher, publication date (2020, updated 2024), and precession statement confirmed by direct retrieval on the access date.
Ptolemy's Tetrabiblos, or Quadripartite: Being Four Books of the Influence of the Stars
Claudius Ptolemy · 2nd century CE (work); 1822 translation, 1900 edition consulted
Primary sourceHellenisticHistorical primary source
J. M. Ashmand (translator) · W. Foulsham & Co. Ltd, London · 1900, Digitised as Project Gutenberg eBook #70850 (released 2023); marked public domain in the USA. Ashmand's 19th-century translation is historically important but is not a modern critical edition.
Registry notes: The most influential theoretical treatise of Hellenistic astrology, presenting a systematic natural-philosophical account of astrological doctrine. Edition, translator, publisher, eBook number, and public-domain status confirmed directly against the Project Gutenberg catalogue page on the access date. Quality caveat: an older public-domain translation (Q3 in the source-quality scale), suitable for historical exposition, not for fine textual argument.
Contested points: Ptolemy's exact dates are approximate (c. 100-170 CE); the Gutenberg edition also includes the Centiloquy, whose attribution to Ptolemy is traditionally claimed but disputed by scholars.
Science Versus the Stars: A Double-Blind Test of the Validity of the NEO Five-Factor Inventory and Computer-Generated Astrological Natal Charts
Alyssa Jayne Wyman; Stuart Vyse · 2008
Secondary sourceModern WesternScientific study
The Journal of General Psychology 135 (3), pp. 287-300 · 2008, Published by Informa UK Limited (Taylor & Francis); ISSN 0022-1309 (print), 1940-0888 (electronic).
Registry notes: A double-blind study in which participants were asked to identify their own personality description from among a computer-generated astrological natal-chart interpretation and alternatives, alongside a standard personality inventory. Held in the registry as a later, independent empirical test so that the platform's statement about the empirical record does not rest on Carlson (1985) alone, as the source-backed editorial standard (D-30) requires where a claim carries weight. Bibliographic details (title, both authors, journal, volume 135, issue 3, pages 287-300, year 2008, ISSN, publisher) confirmed against the Crossref metadata record for the DOI on the access date.
Contested points: Individual studies in this literature differ in design, sample size and the form of astrological material tested; the platform reports the body of published work and the debate around it, not a single decisive experiment.
The 'Barnum Effect' in Personality Assessment: A Review of the Literature
D. H. Dickson; I. W. Kelly · 1985
Secondary sourceCross-traditionScientific study
Psychological Reports 57 (2), pp. 367-382 · 1985
Registry notes: Literature review of the Barnum (Forer) effect: the tendency to accept vague, generally applicable personality statements as uniquely accurate. Relevant to why generic horoscope-style descriptions feel personal. Bibliographic details confirmed against the Crossref metadata record for the DOI on the access date.
The Brihat Jataka of Varaha Mihira
Varāhamihira · 6th century CE (work); 1885 English translation consulted
Primary sourceIndian JyotishaHistorical primary source
N. Chidambaram Iyer (translator) · 1885, Digitised copy in the Wellcome Collection (work id afmgm695), carrying the Public Domain Mark. The Wellcome catalogue does not state the place of publication; that field is left unrecorded rather than guessed.
Registry notes: One of the most canonical natal (jātaka) texts of the Indian Jyotiṣa tradition. Title, author, translator, translation year (1885), digitisation, and Public Domain Mark confirmed directly against the Wellcome Collection record on the access date. Quality caveat: a 19th-century translation, suitable for historical exposition rather than fine textual argument.
Contested points: Varāhamihira's dates are conventionally given as c. 505-587 CE; pre-modern Indian chronology carries normal scholarly uncertainty.
The Constellations (official list of the 88 IAU constellations)
International Astronomical Union · current (living reference page)
ReferenceCross-traditionAstronomical fact
Registry notes: The International Astronomical Union's official reference listing all 88 modern constellations with their names, abbreviations, and boundary files. Used for the astronomical fact that the sky is divided into 88 officially defined constellations of unequal size. Page content and publisher confirmed by direct retrieval on the access date.
The fallacy of personal validation: a classroom demonstration of gullibility
Bertram R. Forer · 1949
Secondary sourceCross-traditionScientific study
The Journal of Abnormal and Social Psychology 44 (1), pp. 118-123 · 1949
Registry notes: The classic classroom experiment behind the term 'Forer effect': students rated an identical, generic personality sketch as highly accurate for themselves personally. Bibliographic details (journal, volume 44, issue 1, pages 118-123, year 1949) confirmed against the Crossref metadata record for the DOI on the access date.
The Fault is not in the Stars: Susceptibility of Skeptics and Believers in Astrology to the Barnum Effect
Peter Glick; Deborah Gottesman; Jeffrey Jolton · 1989
Secondary sourceModern WesternScientific study
Personality and Social Psychology Bulletin 15 (4), pp. 572-583 · 1989
Registry notes: Experimental study of how both sceptics and believers respond to generic astrological personality feedback. Bibliographic details (journal, volume 15, issue 4, pages 572-583, year 1989) confirmed against the Crossref metadata record for the DOI on the access date.
The Heavenly Writing: Divination, Horoscopy, and Astronomy in Mesopotamian Culture
Francesca Rochberg · 2004
Secondary sourceBabylonianHistorical scholarship
Cambridge University Press · 2004, Hardcover edition; a 2007 paperback (ISBN 9780521716611) also exists.
Registry notes: Standard academic study of Mesopotamian celestial divination, horoscopy, and astronomy, by a leading Assyriologist. ISBN, title, author, publisher (Cambridge University Press), and 2004 publication year confirmed against independent bibliographic records and an academic review (Bryn Mawr Classical Review, 2005) on the access date.
The JPL Planetary and Lunar Ephemerides DE440 and DE441
Ryan S. Park; William M. Folkner; James G. Williams; Dale H. Boggs · 2021
ReferenceCross-traditionAstronomical fact
The Astronomical Journal 161 (3), article 105 · 2021, Published by the American Astronomical Society; ISSN 0004-6256 (print), 1538-3881 (electronic).
Registry notes: The peer-reviewed description of the JPL DE440 and DE441 planetary and lunar ephemerides: the numerically integrated solutions, fitted to observational data, that give the positions of the Sun, Moon and planets over time. Astro Gazer's calculation service reads a kernel from this DE440 family (decision log D-28), so this record is the published reference for the ephemeris behind every body position the platform reports. Cited for what an ephemeris is and for the fact that planetary positions are computed from a fitted, published, reproducible solution rather than estimated. Bibliographic details (title, all four authors, journal, volume 161, issue 3, article number 105, year 2021, ISSN, publisher) confirmed against the Crossref metadata record for the DOI on the access date.
The Stars Down to Earth: And Other Essays on the Irrational Culture
Theodor W. Adorno · 2001 (Routledge Classics edition; the title study was first published in 1957)
Secondary sourceModern WesternHistorical scholarshipScientific criticism
Routledge · 2001, Routledge Classics edition, 248 pages. The catalogue record names no editor or translator, so none is recorded here.
Registry notes: A sustained critical study of a mass-circulation newspaper astrology column, treating the column as a media genre with its own rhetorical devices rather than as a technical astrological practice. Registered so the daily-horoscope surface cites a serious critical position on its own format, not only sources sympathetic to the tradition (editorial policy 5a, selection honesty; risk R-30). Title, subtitle, author, publisher, edition year, pagination and ISBN-13 were read from the Open Library edition record OL7489401M on the access date. No page number, chapter or quotation is attributed, because none was consulted; the record supports the existence and academic treatment of the genre only.
Contested points: Adorno writes as a critic of mass culture, not as a neutral surveyor of astrology, and his conclusions are contested within media studies. It is cited here for its subject and its critical stance, both of which are stated openly, never as a settled verdict.
Why Astrology Doesn't Work
I. W. Kelly · 1998
Secondary sourceModern WesternScientific criticism
Psychological Reports 82 (2), pp. 527-546 · 1998
Registry notes: Critical review arguing that astrological interpretation rests on loosely constrained rules and that the empirical literature has not supported astrological claims. Bibliographic details (title, author, journal, volume 82, issue 2, pages 527-546, year 1998) confirmed against the Crossref metadata record for the DOI on the access date.