BUILD YOUR TELESCOPE. EXPLORE THE UNIVERSE.
Cassi is a DIY telescope kit that allows you to learn while building it and share the experience with family and friends.
The basic method for starting astronomical imaging. Dark light compensation technology dramatically improves the camera's image clarity in low-light conditions. Plug and play, no driver required. A full HD imaging sensor can record 2K video at up to 30 frames per second.
Enjoy clear, sharp images while engaging in direct observation with this high-quality eyepiece.
Eyepiece Features:
- Multicoated for maximum light transmission
- High-quality lenses deliver the sharpest possible image across the entire field of view
- Special lens edges reduce light scattering and improve contrast
The advanced WiFi camera features a Full HD Sony color CMOS sensor. Its 2.4G WiFi allows up to four iPhone or Android devices to connect simultaneously, enabling shared astronomy experiences with friends. With an effective transmission range of 30 ft, it frees you from data cables, making outdoor astronomy observation more convenient. The built-in 2400mAh lithium-ion battery provides up to 4 hours of continuous use. A 32 GB memory card is included, and the camera can also connect to a PC via a USB cable.
Connects directly to your phone or tablet, transmitting full HD video and images. Includes a 32 GB memory card to record observations in any condition. Equipped with a built-in 1500mAh lithium battery, it provides up to 3 hours of continuous use.
Which KIT Is Right for You?
Our Mission
We are dedicated to inspiring the next generation of scientists. Our mission is to promote interest in astronomy and STEM through engaging, hands-on projects that families can enjoy together.
Why choose Cassi
A few years ago, I found myself eager to dive into astronomy and get a telescope. But which one? The selection seemed endless. The prices ranged from $150 to $5,000, yet they gave little indication of which mirror size helps you see Jupiter’s moons, or what aperture you should choose while living in a big city.
That frustration inspired me to join forces with the Institute of Optics at the University of Rochester. Over three years, my team collaborated with talented senior students and inspiring faculty advisors to develop Cassi from the ground up.
With Cassi, you'll explore how each part works: from the primary mirrors to the focusing knobs. You’ll enjoy discovering how optics influence your image, uncover features that reveal breathtaking deep-sky objects, and learn tips to capture stunning photos, even in areas with light pollution.
Cassi is friendly, engaging, and perfect for explorers of all levels. It provides a delightful stargazing experience that is both educational and enjoyable. Each adventure feels personal and exciting, making learning about the stars a fun and memorable journey.
— Igor, Founder of Cassi Telescope
FAQs
How does Cassi work?
Your kit includes everything you need to start sky watching. All you need to do is assemble the telescope body, insert the mirrors and scope, set up a fine-tuning system, and attach a scope or camera.
What if I don't know anything about telescopes and astronomy?
Don't worry! We knew very little about telescopes when we started working on Cassi. We wanted this project to serve as a guide to the exciting world of astronomy. Cassi includes an introduction to telescopes - a booklet written by inspiring scientists. You will learn about various types of telescopes, how they work, and the key components that are important in space imaging.
What is the lead time for your products?
Lead times vary depending on the product availability. We are working to deliver the first orders by Summer 2026.
What is Cassi’s primary mirror diameter?
Great you asked! Cassi has a 6” diameter primary mirror. It collects enough light to reveal many celestial objects, including nebulae, galaxies, and star clusters, while remaining portable and easy to use.
Please email us at info@cassi-telescope.com if you have any other questions.