Kat: The Modular Digital Eyepiece for Telescopes for faint night sky objects

Turn your telescope into a smart observation rig

Reveal hidden details and vibrant colors of the night sky (even in light-polluted areas)

About Kat Digital Eyepiece

With Kat digital eyepiece you can point your telescope at a faint nebula that is invisible to the naked eye, and within seconds, watch it appear in vibrant detail and color right inside the eyepiece.

Compute Module

Powered by a Raspberry Pi 5 (with options for more powerful boards).

OLED Screen

High pixel density 2880x1440 OLED display for vibrant deep space colors.

Bring Your Own Astrocamera

Use your own astronomy camera via USB. No vendor lock-in for sensors.

Live Stacking

Integrates Night Amplifier to stack raw images in real-time.

Choose your path

The Ready-to-Use Route

Not everyone has the time to build electronics. A fully assembled units will be available.

The DIY Route (Free Plans & Instructions)

If you have a 3D printer you can build this yourself. Check out our DIY Build Guide for the parts list and step-by-step instructions.

Real-Time EAA Live Stacking in Action

TODO - images and videos will be added later.

Curious about how it compares?

See our Modular vs Integrated Eyepieces Comparison to understand why "Bring Your Own Camera" is the future.

Have questions? Read our Common Questions & Answers.