Ulugh Beg Observatory, Samarkand

Ulugh Beg Observatory tickets and opening hours

There is no published official fare. Unofficially, foreign visitors pay UZS 40,000–75,000: Saiga Tours quoted 40,000 in summer 2025, while the Eurasia Travel forum gave 75,000 in winter 2025/26. Samarkand raised monument prices sharply, so budget for the higher figure.

One ticket normally covers both the underground arc and the museum. There is no combined pass for Samarkand’s sights — each has its own ticket desk. Cards are taken more and more, but terminals fail, so carry Uzbek som in small notes.

Unofficially, the site opens daily from about 9:00 to 18:00, possibly closing earlier in winter. One guide lists the museum as closed on Sundays, so check ahead if that is your day. Go in the morning: the hilltop has little shade and summer afternoons are hot.

Is the Ulugh Beg Observatory worth visiting?

Yes, if you have a second day in Samarkand or care about the history of science. It is not a showpiece like the Registan or Shah-i-Zinda — there are no tiled domes here, just an arc in the ground and a modest museum.

What makes it worth the trip is the scale of the idea. In the 1420s a ruler built a three-storey instrument to measure the sky, and his team produced a catalogue of about a thousand stars and a year length less than a minute off. Once you know that, the trench stops looking like a trench.

If you only have one day in the city, skip it. If you have two, pair it with Afrasiab and the Tomb of Daniel — all three sit close together in the north of town.

What to see at the observatory

• The sextant arc — two marble-faced rails curving down into the rock along the meridian. Walk down the steps and look at the scale to get a feel for the size of the full instrument.
• The tower’s foundations — the circle on top of the hill shows how big the building was: roughly 46 metres across.
• The museum — copies of pages from the Zij, photos from Vyatkin’s excavation, models of the observatory and old astronomical instruments.
• Murals of Ulugh Beg’s life, portraits of his astronomers Qadi Zada al-Rumi and Ali Qushji, and coins from his reign.
• A map of the Timurid empire and a copy of a 17th-century engraving showing Ulugh Beg among the great astronomers.
• Vasily Vyatkin’s grave beside the dig — the man who found the observatory is buried right here.
• The view from Kohak hill over northern Samarkand and the Afrasiab mound.

A short history of Ulugh Beg and his observatory

Ulugh Beg was Timur’s grandson and the son of Shah Rukh, who handed him Samarkand in 1409. He ruled the city for four decades and was far more interested in mathematics and astronomy than in conquest. Before the observatory he built the madrasa on the Registan, where astronomy was also taught.

The observatory went up in the 1420s — sources give dates from 1424–1428 to 1428–1429. Inside the round tower stood a meridian arc with a radius of about 40 metres, roughly 70 cm to each degree. The mathematician Jamshid al-Kashi ran it first, then Qadi Zada al-Rumi. The resulting Zij-i Sultani, finished in 1437, listed about a thousand stars.

Ulugh Beg was killed in 1449, at the instigation of his own son. His scholars, led by Ali Qushji, kept working for about twenty years; then the tower was abandoned and, in the late 16th century, taken apart for bricks. In 1908 Vasily Vyatkin traced it through an old document and dug out the arc. Ulugh Beg himself is buried in the Gur-e-Amir.

Observatory, Ulugh Beg Madrasa or Afrasiab?

On a one-day visit the Registan and Shah-i-Zinda come first. On a second day, the observatory and Afrasiab make an easy half-day in the north of the city.

Samarkand’s historic sites compared

Samarkand’s historic sites rated by YesGo. Tap a column heading to sort.

Is a guided tour worth it here?

More than at most Samarkand sights. The Registan speaks for itself; the observatory, without explanation, is a trench and a few display cases. A guide can show you how the sextant worked, who al-Kashi and Ali Qushji were, and how the star tables were worked out from readings on the arc.

The observatory is usually part of a northern Samarkand tour with Afrasiab and Shah-i-Zinda, which works out cheaper than a taxi to each. Going alone? Read the history section above before you walk in — it’s enough to know what you’re looking at.

Nearby and on the route

41

Tomb of Saint Daniel

Samarkand, Uzbekistan

40 min · ≈ UZS 30,000–40,000, unofficial · 17 min walk

Yes — add to my route: Tomb of Saint Daniel

35

Afrasiab Museum

Samarkand, Uzbekistan

1 h 15 min · ≈ UZS 40,000–80,000 (unofficial) · 21 min walk

Yes — add to my route: Afrasiab Museum

46

Shah-i-Zinda

Samarkand, Uzbekistan

1 h 15 min · ≈ 50,000 som for foreigners · 35 min walk

Yes — add to my route: Shah-i-Zinda

38

Hazrat Khizr Mosque

Samarkand, Uzbekistan

30 min · Free, donations welcome · 40 min walk

Yes — add to my route: Hazrat Khizr Mosque

How to do it right

• Pair the observatory with Afrasiab and the Tomb of Saint Daniel — one short trip to the north of the city.
• Come in the morning: there is almost no shade on the hill and the arc gets very hot by midday in summer.
• Look at the tower model in the museum first, then go down to the arc — it makes far more sense that way.
• Carry cash in som: the card terminal at the desk doesn’t always work.
• Only one day in Samarkand? Save the observatory for next time and spend the hours at the Registan.
• Visit the Gur-e-Amir as well — Ulugh Beg is buried there, and the story comes full circle.

Questions