| From: Thomas Hockey et al. (eds.). The Biographical Encyclopedia of Astronomers, Springer Reference. New York: Springer, 2007, p. 941 |
|
Courtesy of 
|
Qabīṣī: Abū al‐Ṣaqr ʿAbd al‐ʿAzīz ibn ʿUthmān ibn ʿAlī al‐Qabīṣī
Keiji Yamamoto
Alternate
name
Alcabitius
Flourished (Iraq), second
half of the 10th century
Qabīṣī,
an astronomer and astrologer, came from one of two villages called Qabīṣa in Iraq. He studied Ptolemy's
Almagest under ʿAlī ibn Aḥmad
al‐ʿImrānī of Mosul, a mathematician and teacher, and dedicated
several works (nos. 2, 3, 4, and 6, as given below) to Sayf al‐Dawla,
the Ḥamdānid Emir of Aleppo between
945 and 967. Otherwise, details of Qabīṣī's life are little known.
Qabīṣī's
extant works are the following:
| (1) |
A commentary on Farghānī's
Kitāb al‐fuṣūl (also referred
to as Kitāb fī jawāmiʿ ʿilm al‐nujūm).
|
| (2) |
A treatise on the distances and volumes of the planets
(Risāla fī al‐abʿād wa‐ʾl‐ajrām).
This treatise provides distances and volumes for the planets other than
those of the Sun and the Moon, which had already been given in the Almagest.
Qabīṣī's
account of Mercury was quoted twice by Bīrūnī
in his al‐Qānūn al‐masʿūdī
(Vol. X, Chap. 6). |
| (3) |
Book
on the introduction to astrology (Kitāb al‐mudkhal ilā
ṣināʿat aḥkām al‐nujūm), comprising five chapters. Qabīṣī's most famous work,
this book is preserved in several Arabic manuscripts and in a Latin
translation of which there are more than 200 manuscripts as well as
12 editions printed between 1473 and 1521. His text was the main book
used in universities in the medieval Latin world where astrology was
taught as part of the curriculum in medicine. |
| (4) |
A treatise for the examination of astrologers (Risāla
fī imtiḥān al‐munajjimīn).
This treatise contains 30 astronomical or astrological questions and
answers. Qabīṣī divides astrologers
into four categories according to their intellectual level: The complete
astrologer; the one who knows facts such as the shape of the celestial
sphere but can not prove them; the astrologer who accepts things uncritically,
like a blind man the majority of astrologers fall into this category;
and one who does not know anything about astronomy and astrology, relying
only upon the operations of instruments. |
| (5) |
A work on the conjunction of the planets in the zodiacal
signs and their prognostications for the revolutions of the years is
attributed to Qabīṣī
in Latin (De coniunctionibus planetarum in duodecim signis et earum
pronosticis in revolutionibus annorum). |
| (6) |
A mathematical work in Arabic on numbers. |
Qabīṣī
wrote several other works that are not extant. We know of them because he
refers to them in his surviving works. These include a treatise on the size
of the Earth, referred to in (2) and (6) as Risāla fī masāfat
al‐arḍ, part
of which is quoted at the end of (6); a book on the explanations of astronomical
tables, referred to in (2) as Kitāb fī ʿilal
al‐zījāt; a book on affirming the validity
of astrology, referred to in the preface of (3) as Kitāb fī ithbāt
ṣināʿat aḥkām al‐nujūm, which was a response to the criticism of astrology
by ʿAlī ibn ʿĪsā, an astronomical
instrumentmaker of the 9th century; Kitāb fī al‐namūdārāt,
i. e., a book on the namūdārs, the method to fix a
person's ascendant when the time of birth is unknown, referred to in the fourth
chapter of (3); and a book referred to in the introduction of (4) as Shukūk
al‐Majisṭī (Doubts on the Almagest).
Selected References
Al‐Qabīsī (2004). The Introduction to Astrology,
edited and translated by Charles Burnett, Keiji Yamamoto, and Michio Yano.
London: Warburg Institute.
Ibn al‐Nadīm (1970). The Fihrist of al‐Nadīm:
A Tenth‐Century Survey of Muslim Culture, edited and translated
by Bayard Dodge. 2 Vols. New York: Columbia University Press.
Pingree, David (1975). Al‐Qabīsī. In Dictionary
of Scientific Biography, edited by Charles Coulston Gillispie. Vol. 11,
p. 226. New York: Charles Scribner's Sons.
(1978). Al‐Kabīsī.
In Encyclopaedia of Islam. 2nd ed., Vol. 4, pp. 340341. Leiden: E.
J. Brill.
Sesiano, Jacques (1987). A Treatise by al‐Qabīsī
(Alchabitius) on Arithmetical Series. In From Deferent to Equant: A Volume
of Studies in the History of Science in the Ancient and Medieval Near East
in Honor of E. S. Kennedy, edited by David A. King and George Saliba,
pp. 483500. Annals of the New York Academy of Sciences, Vol. 500. New York:
New York Academy of Sciences.
Sezgin, Fuat. Geschichte des arabischen Schrifttums.
Vol. 5, Mathematik (1974): 311312; Vol. 6, Astronomie (1978):
208210; Vol. 7, Astrologie Meteorologie und Verwandtes (1979): 170171.
Leiden: E. J. Brill.
Yāqūt,
Shihāb al‐Dīn Abū ʿAbd
Allāh al‐Rūmī (n.d.). Mujʿam al‐buldān.
Vol. 4, pp. 308309. Beirut.