How it Works

Three black electronic devices with adjustable components connected in a circular arrangement on a white surface.

Plate solving for accurate positioning

The PiFinder uses plate solving technology to quickly and accurately determine where your telescope is pointing by taking photos of the sky and identifying star patterns in the image. This direct measurement of sky position does away with the need for multi-star alignment, sky models or other set up. In under one second it can provide precise positioning on any telescope. No encoders required and as easy to install as a red dot finder.

A black electronic device with a small screen displaying 'PiFinder' and labeled controls, built by BBLabs.

Motion sensing for real-time feedback

Between plate solves as you move the telescope, the PiFinder uses an advanced Inertial Measurement Unit (IMU) to provide real-time position estimates as you track down faint objects. Once your scope stops moving, the plate solving system will correct any small residual errors giving you completely accurate position in about a second. The interaction between these two systems is seamless, providing quick feedback and incredible accuracy.

Screenshot of a computer interface displaying astronomical data about Messier 7, an open cluster in Sagittarius, with magnitude 3.3 and size 80 arcminutes.
A digital screen displaying technical data with orange text on black background, including code 'M33 Galaxy', measurements '17.7' and '8.3', and labels like 'LOCATE', 'Psc', 'Obsv', and 'Tri'.

Comprehensive catalog system for object locating

The PiFinder has a database of over 20,000 objects from multiple catalogs. Using the on-board keypad and screen you can search for objects by name, type, visibility and other criteria. Once you’ve found an object you want to observe, the PiFinder will provide clear information on which direction, and how far, to move your telescope to get that object right in the eyepiece, even at high power.

A black electronic device called PiFinder by BBLabs. It has a small screen displaying menu options and illuminated red LED buttons labeled with numbers and symbols.

Powerful Observing Tools

Included with the PiFinder is a set of observing tools to make your time with your telescope more enjoyable and productive. See previews of any catalog object, oriented and sized as it would appear through the eyepiece so you know what to expect. Log your observations with the press of a button. Build observing lists on the fly, or load one from your favorite planetarium program. You can even use the accurate pointing provided by the PiFinder to wirelessly drive SkySafari or other apps on your phone or tablet.