The David Thompson Astronomical Observatory

DavidThompsonObservatoryBanner 690x374

Thank you for your interest in Fort William Historical Park – Northern Ontario’s Premier Entertainment Park. For more information about the David Thompson Astromical Observatory contact us at 807-473-2344 or This email address is being protected from spambots. You need JavaScript enabled to view it. .

Your Pathway to the Stars!anthony with telescope compressed
A marvel of modern space science, the David Thompson Astronomical Observatory is home to one of the largest telescopes in Central Canada! Whether you’re a casual observer or serious astronomer, our state-of-the-art astronomy centre offers an array of illuminating events and programs year-round.

Stimulate your senses as you explore the cosmos using the observatory’s fleet of telescopes to find galaxies, planets, nebulae and more! Join our astronomers and explore the subatomic universe to the very edge of the observable universe.

The David Thompson Astronomical Observatory offers an array of illuminating programs year-round!

Click HERE for more details about our public events, day and evening e2016 DTAO Experience Guide Coverducational programs, overnight experiences, and adventures for Scouts and Guides, or download the DTAO Experience Guide .

Book Your Corporate Adventure

The David Thompson Astronomical Observatory’s Discovery Centre offers unique banqueting and world-class catering experiences that combine quality service with a novel, astronomical flavour. It is the perfect location to host your next corporate meeting or social gathering.

Call 807-473-2344 or email 
This email address is being protected from spambots. You need JavaScript enabled to view it. .

Contact the DTAO

dtao ad

The David Thompson Astronomical Observatory

Fort William Historical Park
1350 King Road
Thunder Bay ON, Canada P7K 1L7

Phone: 807-473-2344 / Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Astronomy Experiences

DavidThompsonObservatoryBanner 690x374

Thank you for your interest in Fort William Historical Park – Northern Ontario’s Premier Entertainment Park. For more information about the David Thompson Astromical Observatory contact us at 807-473-2344 or This email address is being protected from spambots. You need JavaScript enabled to view it. .

Discover the cosmos at the David Thompson Astronomical Observatory
Whether you’re a casual observer or serious astronomer, our state-of-the-art astronomy centre offers an array of illuminating events and programs year-round to explore the mysteries of the universe.

2016 DTAO Experience Guide CoverSee below for more details about our public events, day and evening educational programs, overnight experiences, and adventures for Scouts and Guides, or download the DTAO Experience Guide .

Stimulate your senses as you explore the cosmos using the observatory’s fleet of telescopes to find galaxies, planets, nebulae and more! Join our astronomers and explore the subatomic universe to the very edge of the observable universe.

Education Programs

The David Thompson Astronomical Observatory offers a wide-variety of fun-filled, activity-based day, evening and overnight education programs that meet curriculum requirements from kindergarten through post-secondary.

Download the DTAO Experience Guide  for more details about our education programs, or speak with a FWHP Reservations Team Member to discuss creating a customized program to meet the needs of your students.

Save on Education Programs!
Purchase any education program and get the second program 50% off, and get a free shuttle for local groups!*
*Offer subject to availability. Second education program must be of equal or lesser value.

Book Your Education Program Today!
Call 807-473-2344 or email This email address is being protected from spambots. You need JavaScript enabled to view it. .

Star Gazing for Scouts & Guidesanthony with telescope compressed
The David Thompson Astronomical Observatory offers fascinating programs for Cubs, Scouts, Brownies and Guides to earn their respective astronomy related badges. Programs are offered year-round, in the evening, and meet both Canadian and U.S.A. badge requirements.

Download the DTAO Experience Guide for more information.

Book Your Astronomy Program Today!
Call 807-473-2344 or email This email address is being protected from spambots. You need JavaScript enabled to view it. .

Book Your Corporate Adventure
The David Thompson Astronomical Observatory’s Discovery Centre offers unique banqueting and world-class catering experiences that combine quality service with a novel, astronomical flavour. It is the perfect location to host your next corporate meeting or social gathering.

Call 807-473-2344 or email 
This email address is being protected from spambots. You need JavaScript enabled to view it. .

Viewing Conditions

Photo of Horsehead Nebula taken with DTAO Telescope

    See the universe from one of the largest telescopes in Central Canada!

    Join us for a Star Walk Experience! Even if it is a cloudy night, our extensive catalogue of images can take you through a virtual tour of the night sky!

    Evaluate the night sky over Fort William Historical Park!

    Check-out the Thunder Bay Clear Sky Chart below to help you determine sky conditions. It’s the astronomer’s forecast. At a glance, it shows when it will be cloudy or clear for up to the next two days. It’s a prediction of when Thunder Bay will have good weather for astronomical observing at the David Thompson Astronomical Observatory.

    Thunder Bay Clear Skies Chart

    If the chart is not displaying today's date you may have to clear your cache. To do so please hold down the "Ctrl" key while refreshing the page. Learn more about how to use the clear sky chart here.

About the DTAO

Ad for the DTAO photos of children doing experiments

FWHP programming goes space-age!

The David Thompson Astronomical Observatory (DTAO) is powered by one of the largest publicly available telescopes in central Canada. Our 20” Dall-Kirkham (CDK) Telescope provides views of the Universe that are created by the power of this telescope and the unique location of Fort William Historical Park. Located within a low valley, it allows for excellent viewing, dark skies and protection from local light pollution.

The DTAO is home to the largest telescope in Central Canada!

The DTAO’s most powerful telescope contains an optical system designed to provide excellent imaging, capable of fulfilling the needs of both the serious astronomer and casual observer. This large mirror can bring into sharp focus a variety of celestial bodies including galaxies, nebulas, star clusters, and planets, providing accurate details for ease of classification, observation, and data collection. This is one of the largest publicly accessible telescopes in Central Canada.

Come visit us all year round!

Corrected Dall Kirkham Telescope
dtao privat functions
2016 DTAO Experience Guide Cover

Download the David Thompson Astronomical Observatory Experience Guide to discover the new and exciting programs that our state-of-the-art astronomy centre has to offer!