Astronomyعلم الفلك

The star charts and sky alignments that guided Egypt's calendar, told the hours of the night, and oriented its pyramids and temples with astonishing accuracy.خرائط النجوم ومحاذاة السماء التي وجّهت تقويم مصر، وحدّدت ساعات الليل، ووجّهت أهراماتها ومعابدها بدقّةٍ مذهلة.

The ancient Egyptians were dedicated watchers of the sky. Living under the clear desert night, they mapped the stars, tracked the sun and moon, and wove the heavens deep into their religion, their calendar, and their architecture. Their astronomy was intensely practical — it told them when the Nile would flood and what hour of the night it was — and astonishingly precise, allowing them to align their greatest monuments to the stars with an accuracy that still impresses astronomers today.

كان المصريون القدماء راصدين مخلصين للسماء. وعاشوا تحت ليل الصحراء الصافي، فرسموا خرائط النجوم، وتتبّعوا الشمس والقمر، ونسجوا السماوات في عمق دينهم وتقويمهم وعمارتهم. وكان فلكهم عمليًّا للغاية — يخبرهم متى يفيض النيل وأيّ ساعةٍ من الليل هي — ودقيقًا بشكلٍ مذهل، مكّنهم من محاذاة أعظم آثارهم بالنجوم بدقّةٍ ما زالت تُبهر الفلكيين اليوم.

علم الفلك
Watchers of the sky

Watching the Skies · مراقبة السماء

Star Clocks & Seasonsساعات النجوم والفصول

Telling time by the stars.معرفة الوقت بالنجوم.

Egyptian priests carefully observed the night sky and divided it into 36 star groups called decans, whose risings they used as a kind of star clock to mark the hours of the night. Above all they watched for the heliacal rising of Sirius (Sopdet) — its first reappearance at dawn, which signalled the coming of the all-important Nile flood and the start of the new year. This deep sky-knowledge was the foundation of their famous 365-day calendar.

Aligning the Monuments · محاذاة الآثار

Architecture and the Starsالعمارة والنجوم

Building in tune with the heavens.بناءٌ على إيقاع السماء.

Egyptian astronomy was precise enough to shape their architecture. The Great Pyramid of Giza is aligned to the cardinal points — north, south, east, west — with remarkable accuracy, almost certainly achieved by observing the stars. Temples were oriented to the rising sun at key dates, most famously at Abu Simbel, where twice a year the dawn light reaches the inner sanctuary. Tomb ceilings were painted with star charts and the constellations, turning burial chambers into images of the night sky.

Sky, Gods & Time · السماء والآلهة والزمن

Heaven and Religionالسماء والدين

A universe alive with gods.كونٌ يعجّ بالآلهة.

For the Egyptians, the sky was divine. The goddess Nut arched her star-spangled body over the earth, swallowing the sun each evening and giving birth to it each dawn, while the sun-god Ra sailed across the heavens in his boat. Astronomy was therefore inseparable from religion and the rhythm of life. This blend of careful observation and myth made Egypt one of the great early homes of sky-watching, and its knowledge later helped feed the astronomy of the Greeks.

Quick Facts · حقائق سريعة

Egyptian Astronomy at a Glanceعلم الفلك المصري في سطور

What it is: the sky-watching, star charts, and alignments of ancient Egypt.
Arabic name: علم الفلك (Astronomy).
Star clocks: 36 "decans" used to tell the hours of the night.
Key star: Sirius, whose rising marked the Nile flood and the new year.
Alignments: the Great Pyramid set to the compass points; temples to the rising sun.
Religion: the sky-goddess Nut and the sun-god Ra; star ceilings in tombs.

Sources include standard works on ancient Egyptian astronomy.