Ulugh Beg's Zij-i Sultani

E316752

Ulugh Beg's Zij-i Sultani is a 15th-century astronomical star catalogue and set of planetary tables compiled at the Samarkand observatory, renowned for its remarkably accurate measurements and lasting influence on later astronomy.

All labels observed (2)

How this entity was disambiguated

Statements (47)

Predicate Object
instanceOf 15th-century scientific work ⓘ
astronomical star catalogue ⓘ
planetary tables ⓘ
zij ⓘ
accuracyComparedToModern errors of star positions typically within a few arcminutes ⓘ
alternativeName Zij-i Jadid-i Sultani ⓘ
linked to: Zīj-i Sultānī
approximateCompletionDate around 1437 ⓘ
associatedWithSchool Samarkand school of astronomy ⓘ
basedOn observations at Samarkand observatory ⓘ
compiledAt Samarkand observatory ⓘ
compiledBy Ulugh Beg ⓘ
compiledInCity Samarkand ⓘ
compiledInPresentDayCountry Uzbekistan ⓘ
compiledInRegion Timurid Empire ⓘ
linked to: Timurid dynasty
compiledUsingInstrument armillary sphere ⓘ
large meridian arc sextant ⓘ
contains planetary tables ⓘ
star catalogue ⓘ
tables of eclipses ⓘ
tables of planetary positions ⓘ
trigonometric tables ⓘ
dedicatedTo Ulugh Beg as sultan ⓘ
linked to: Ulugh Beg
editorOrCollaborator Ali Qushji ⓘ
linked to: Al-Qushji

Qadi Zada al-Rumi ⓘ
epoch 15th century ⓘ
field astronomy ⓘ
historicalSignificance bridge between classical and early modern astronomy ⓘ
one of the last major works of medieval Islamic astronomy ⓘ
includesMeasurement length of the sidereal year ⓘ
obliquity of the ecliptic ⓘ
influenced later zij compilations ⓘ
influencedBy Ptolemy's Almagest ⓘ
linked to: Almagest

earlier Islamic zijes ⓘ
language Arabic ⓘ
Persian ⓘ
notableFor high accuracy of star positions ⓘ
influence on later European astronomy ⓘ
influence on later Islamic astronomy ⓘ
precise planetary tables ⓘ
numberOfStars about 1018 ⓘ
tradition Islamic astronomy ⓘ
usedFor astrological calculations ⓘ
calendar reform ⓘ
navigation ⓘ
timekeeping ⓘ
usesCoordinateSystem ecliptic coordinates ⓘ
usesUnit sexagesimal system ⓘ

How these facts were elicited

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Islamic astronomy → hasKeyText → Ulugh Beg's Zij-i Sultani ⓘ
Ulugh Beg → notableWork → Ulugh Beg astronomical tables ⓘ
linked to: Ulugh Beg's Zij-i Sultani