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Uzbekistan🇺🇿 | attractionsUlugh Beg ObservatoryBuried sextant arc, star catalog, Kohak Hill | things to do and best time to go

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Backpacking in Ulugh Beg Observatory
🌟 Highlightattraction ranked #9
By Johan Kruseman 🇳🇱 | Updated October 15, 2026

Most travelers assume the observatory is a standing building with a dome, but what survives is the underground base of a giant instrument, plus a small museum beside it. It sits on Kohak Hill, on the northeastern edge of Samarkand, a short taxi ride from the Registan. Entry is cheap, crowds are thin compared with the big madrasas, and you will rarely wait more than a few minutes for a photo. Come when the doors open and you may share the trench with only a tour group or two. The curved marble track is smaller than you expect but the idea behind it is huge. Unlike the Jantar Mantar in Jaipur, an open-air park of many instruments, this site is one enormous sextant, buried.

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✨ Why go?
Ranked #9 attraction in UzbekistanReasons people choose to visit here

Go for the buried sextant arc, because standing in the trench lets you see what a 15th-century astronomer actually worked with. The surviving section of marble track, with its engraved degree and minute markings, is the only part of an instrument that once rose roughly three stories. Seeing it makes the numbers believable.

Go also for the star catalog of 1,018 stars that came from this hill. Ulugh Beg's measurements were so accurate that European scholars were still using them centuries later, and the small museum shows copies, models and portraits that explain how.

It also fits easily into a Samarkand route. It is a quick half-day add-on, and it gives the city's tilework a human story about a ruler who preferred stars to swords.

💡 HighlightsThe experiences that define the visit

  1. The Sextant Trench: the main sight, a curved marble track set in a narrow cut in the hill. You descend steps and walk beside the arc, reading the degree marks carved into the stone.
  2. The Fakhri Sextant Arc Scale: the finely carved scales on the marble are what made readings accurate to fractions of a degree. Look closely at the lettering and graduations.
  3. The Observatory Museum: a small circular building with replicas of instruments, star charts, manuscripts and a model showing how the tall original looked. It is the easiest way to grasp the scale.
  4. Ulugh Beg Monument: a statue of the ruler-astronomer in the grounds, a favorite spot for portraits against the hillside.
  5. The Star Catalog Displays: panels and copies of the Zij-i Sultani, listing 1,018 stars, with the story of its later translation in
… read more 👉
  1. The Sextant Trench: the main sight, a curved marble track set in a narrow cut in the hill. You descend steps and walk beside the arc, reading the degree marks carved into the stone.
  2. The Fakhri Sextant Arc Scale: the finely carved scales on the marble are what made readings accurate to fractions of a degree. Look closely at the lettering and graduations.
  3. The Observatory Museum: a small circular building with replicas of instruments, star charts, manuscripts and a model showing how the tall original looked. It is the easiest way to grasp the scale.
  4. Ulugh Beg Monument: a statue of the ruler-astronomer in the grounds, a favorite spot for portraits against the hillside.
  5. The Star Catalog Displays: panels and copies of the Zij-i Sultani, listing 1,018 stars, with the story of its later translation in Europe.
  6. Kohak Hill Viewpoint: the rise above the site gives a calm outlook over the edge of the city and the green Siab valley, good for a short walk around the grounds.
Allow about 45 minutes to an hour for everything, a little longer if you read every museum label.
Spotted a mistake or missing something? Contact us.

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🌤️ When to go?Best time to visit Ulugh Beg Observatory

  • Spring (April to May): Highs of 18 to 27°C (64 to 81°F), green hills around Samarkand and clear skies for the observatory’s hilltop site. Tour groups arrive, but the grounds stay manageable.
  • Summer (June to August): Highs of 33 to 40°C (91 to 104°F) with almost no shade at the museum. Daylight runs until about 8:30 pm. Crowds thin out and hotel rates drop.
  • Autumn (September to October): Highs of 17 to 30°C (63 to 86°F), dry and sunny. This is the busiest and priciest stretch for beds and drivers.
  • Winter (December to February): Highs of 3 to 8°C (37 to 46°F), with frost and occasional snow. Daylight lasts only about 9 hours, but you may have the underground sextant trench nearly to yourself.
Arrive at opening time in any season, since tour buses start pulling in by mid-morning.

source: climatestotravel.comJANJanuary: below average for travelingFEBFebruary: fair for travelingMARMarch: good for travelingAPRApril: excellent for travelingMAYMay: excellent for travelingJUNJune: highly recommended for travelingJULJuly: fair for travelingAUGAugust: fair for travelingSEPSeptember: excellent for travelingOCTOctober: highly recommended for travelingNOVNovember: good for travelingDECDecember: below average for traveling
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🛏️ Where to stay?Best areas to stay in Uzbekistan

The observatory sits on Kohak hill about 3 km northeast of Registan Square, and the best base is the old town around Registan and Gur-Emir. Guesthouses and dorm-style hostels cluster in the lanes behind Tashkent Street and near Registan, where you can walk to the main madrasas, Siab Bazaar and many cheap eateries. Solo travelers find it easy to meet others in courtyard guesthouses there, and the streets stay well lit and busy into the evening. From this area, a taxi to the observatory takes 10 to 15 minutes, and drivers know the site by name. A second option is the area around Siab Bazaar, slightly … read more 👉
The observatory sits on Kohak hill about 3 km northeast of Registan Square, and the best base is the old town around Registan and Gur-Emir. Guesthouses and dorm-style hostels cluster in the lanes behind Tashkent Street and near Registan, where you can walk to the main madrasas, Siab Bazaar and many cheap eateries. Solo travelers find it easy to meet others in courtyard guesthouses there, and the streets stay well lit and busy into the evening. From this area, a taxi to the observatory takes 10 to 15 minutes, and drivers know the site by name. A second option is the area around Siab Bazaar, slightly quieter and cheaper, with bakeries and fruit stalls on the doorstep. It is a 20 to 25 minute walk from Registan, so plan to use taxis after dark. Avoid staying right at the observatory, since the hilltop has almost no food or lodging.
Best hostels in Uzbekistan


Best quality hotels in Uzbekistan

👛 Costs (as of 15 October 2026)Travel costs and budget guide for Ulugh Beg Observatory

Expect to spend roughly USD 35 to 70 per day for a budget visit to the Ulugh Beg Observatory, including the entry ticket, a shared taxi or ride, food and a dorm or guesthouse bed.
CategoryBudget RangeLocal Reality
Entrance ticketUSD 2 to 4Foreign visitors pay a higher rate than locals; the fee covers the museum and the sextant trench.
Photo permitUSD 0 to 2Some sites charge extra for cameras inside the museum.
Local transportUSD 1 to 4Rides within Samarkand by Yandex Go cost little; a round trip with waiting time costs a bit more.
Accommodation (high season)USD 15 to 35Dorm beds are at the low end, private guesthouse rooms with breakfast at the top.
Food and drinkUSD 10 to 20Plov, samsa, bread and tea at local canteens near Siab Bazaar keep costs low.
Other sightsUSD 5 to 10Registan, Gur-Emir and
… read more 👉
Expect to spend roughly USD 35 to 70 per day for a budget visit to the Ulugh Beg Observatory, including the entry ticket, a shared taxi or ride, food and a dorm or guesthouse bed.
CategoryBudget RangeLocal Reality
Entrance ticketUSD 2 to 4Foreign visitors pay a higher rate than locals; the fee covers the museum and the sextant trench.
Photo permitUSD 0 to 2Some sites charge extra for cameras inside the museum.
Local transportUSD 1 to 4Rides within Samarkand by Yandex Go cost little; a round trip with waiting time costs a bit more.
Accommodation (high season)USD 15 to 35Dorm beds are at the low end, private guesthouse rooms with breakfast at the top.
Food and drinkUSD 10 to 20Plov, samsa, bread and tea at local canteens near Siab Bazaar keep costs low.
Other sightsUSD 5 to 10Registan, Gur-Emir and Shah-i-Zinda charge separate tickets, and the observatory is often combined with them.
Total Daily BudgetUSD 35 to 70Per person, per day, in high season.


source: uzbekistan.travel
⚠️ Prices can change and everyone travels differently, so take this as a rough guide. Hope it helps you plan your adventure!

FAQCommon questions from travelers

Plan 1 to 1.5 hours at the observatory. The museum is small, and the underground trench of Ulugh Beg’s giant sextant takes about 20 minutes to see properly. Many travelers pair it with the Afrosiyob Museum, a short taxi ride away on the ancient city site, which adds another 30 to 45 minutes.
Yes for most travelers, since the ticket costs only a few dollars (roughly USD 2 to 4 for foreigners). You see the preserved arc of the 15th-century sextant, the museum with astronomical instruments and a replica of Ulugh Beg’s star catalog. It is not huge, so skip it only if you are very short on time in Samarkand.
The observatory is about 3 km northeast of Registan Square, and a taxi from the old town takes 10 to 15 minutes and costs roughly USD 1.50 to 3 on Yandex Go. Walking takes 40 to 50 minutes uphill and is hot in summer. Samarkand is reached from Tashkent by Afrosiyob high-speed train in about 2 hours.
⚠️ Things can change over time, so always validate details locally before you go.

Other Uzbek attractions near Ulugh Beg Observatory

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We 💚 feedbackWhat to keep in mind

Most people hurry down to the trench and skip the museum's large painted star maps and manuscript copies. Spend ten minutes there first, and the marble track outside suddenly makes sense. Then walk the hill path on the way out. Go on a clear morning, since the light is gentle and the tour buses arrive later.

✍️ Help improve this page!
The information on this page is based on in-depth research, insights shared by experienced travelers, and feedback from the local travel community in Uzbekistan. While every effort is made to keep the information accurate and current, conditions can change — so if you spot anything incorrect or outdated, please get in touch.



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