Islam Museum Islam Museum islam.museum
Search ⌕ ARENUR
Accessibility
Text size 100%

Saved on this device only — nothing is sent anywhere.

A comet appears, 905

ظهور نجم ذي ذؤابة 905هـ

between 1499 and 1500 CE · 905 AH

In 905 a tailed star rose from the east of Najd — its rising from Aries, its tail over Yemen and its course toward Syria 1.

Depth

At a glance

Era
The Mongol and Post-Mongol Era
Region
Arabia
Review
Draft Completeness 1/5 · Help complete it

In time

149015001510
The Crusades, Ayyubids and Mamluks · The Gunpowder Empires · The Mongol and Post-Mongol Era

Astronomy and timekeeping

Overview

In 905 a tailed star rose from the east of Najd; its rising was in Aries, its tail over Yemen and its course through Syria 1.

People and things also explored

Sharaf al-Dawla's observatory at Baghdad· Qibla-finding by stars, winds, mountains and rivers· Sizes of the heavenly bodies· Distances of the heavenly bodies from the Earth· The seven climates· The second motion (the planets' own motion along the zodiac)· The first motion (diurnal rotation of the heavens)· The solstices

Sources

  1. Shadharat al-Dhahab — Ibn al-Imad al-Hanbali , p. 442
Cite this page

islam.museum contributors. “A comet appears, 905”. islam.museum, https://islam.museum/en/event/comet-905/. CC BY-SA 4.0. Last updated 2026-10-22.

Improve this page on GitHub · Report an error · JSON

Wing

Time

Eras, timelines, this day in history, any year in the Islamic world. Related

Sharaf al-Dawla's observatory at Baghdad

The observatory the Buyid sultan Sharaf al-Dawla commissioned at Baghdad in 378: he ordered the observation of the seven planets in their courses and zodiacal transits on the model of what al-Ma'mun had done, and a well-built observing house went up at the back of the garden in Dar al-Mamlaka, its sightings written into a register drawn up by those who knew geometry.