What can it do?
- Help you quickly align with any star, no matter your skill level
- Teach you about the stars with context from Wikipedia
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Discover the night sky with a built-in planetarium keyed to your
telescope
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After finding 3 - 5 stars, targets typically land within 0.5° (about
the width of the full moon) on alt-azimuth mounts[1]
-
Supports altitude-azimuth, equatorial, fork mount, and dobsonian
telescope mounts
- The system learns and improves as you use it!
- All this and much more!
[1] Measured from logged observing sessions across several telescopes,
mostly from my own testing, replayed through the same learning system
the app uses. Equatorial support is newer and its accuracy is still
being measured.
What sets Stargraph apart?
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It works with your existing telescope:
Stargraph mounts like a standard red-dot finder on your own telescope
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Easy setup:
Initialize by finding one star manually, and then let Stargraph guide
you the rest of the way
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Power:
A long lasting design allows ~30 continual hours on two AAA batteries
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Learns as you go:
The Stargraph Pro app will improve its accuracy as you use it. The more
stars you find, the higher precision you'll get
Compatibility
Stargraph fits most telescopes just like a standard red-dot finder would.
It has a dovetail mount (pictured below). If your telescope does not have
this kind of mounting port, there are often third-party adapters you can
buy that will help.
The Technology
At its core, Stargraph uses a 6-DoF sensor (gyroscope + accelerometer) to
accurately track the motion of your telescope as you explore the night
sky. Once you've calibrated it against a known star, the gyroscope will
handle the rest of the math needed to estimate where you're pointing.
Specifications
-
Stargraph uses 2x AAA alkaline batteries (included) that provide about
30 hours of continual usage
- Works with the free Stargraph Pro app on iOS and Android
- Fits telescopes with a dovetail accessory port
-
Works on altitude-azimuth, equatorial, fork mount, and dobsonian mounts.
Do I need an internet connection?
Stargraph works entirely offline. You can use it in the wilderness or your
backyard.
How beginner-friendly is this?
Very. Stargraph is great for first-time telescope owners. You don't need
prior astronomy knowledge. Stargraph handles the math, you just move the
scope.
Will it fit my telescope?
Stargraph has a dovetail shape on the bottom which fits most standard
finder slots. If Stargraph does not fit, many third-party brackets exist
to help compatibility. You can read more
in the attaching guide.
How accurate is it?
After you find 3 - 5 stars, Stargraph typically guides you within 0.5
degrees of your target. That's about the width of the full moon.
What phones does it work with?
Compatible with iPhone running iOS 18+, Android 8.0+, and foldable phones
like the iPhone Duo.
Why use a dedicated sensor instead of your phone?
Stargraph was designed as dedicated hardware for accuracy. With a
dedicated circuit, each unit can be individually calibrated. It's also
very easy to install. No wires or brackets, just slip it into your finder
shoe and connect to the app.
How do I order one?
Stargraph is released in limited waves.
The next wave opens in late November 2026.
Leave your email above to get early access to the order page a few days
before it opens publicly.
I signed up. What happens next?
You'll get one email with the order link when inventory becomes available.
Units are first come, first served until they sell out.
How quickly does it ship?
Your unit ships within 3 business days of your order, anywhere in the USA.
Most orders arrive 5 - 7 business days after ordering. The
shipping policy has the detail.