Your phone shows your telescope the way.

How it works

1. Mount the phone on the tube

   Any holder that keeps the phone steady and its camera looking along the tube will do. Centre a bright star in the eyepiece once and tap it on screen, so Zenigo knows where the telescope points relative to the camera.

2. Tap Locate

   The app takes a short exposure, finds the stars in it and matches them against a star catalogue. That is plate solving, and it takes about a second.

3. Follow the arrows

   Pick a target. The numbers at the top tell you how many degrees to turn and tilt. The motion sensor keeps them up to date while you push.

Your first night, step by step: Getting started. Every button and setting explained: Help.

What’s in it

Precise, without extra hardware

No encoders, no Wi-Fi box. The position comes from the stars themselves, accurate to a fraction of a degree.

Sky map that follows the phone

Without the camera you get a star map. Turn on Align and it moves with the phone, roughly by compass or precisely after a solve.

Planets, Moon and 2,000 deep-sky objects

All 110 Messier objects, about 1,900 NGC and IC objects and stars to magnitude 9. Tap anything on the map for its details and links to SEDS, NASA, In-The-Sky and Wikipedia.

Show only what you need

Filter the map to the solar system, deep-sky classes or what the naked eye sees.

Works without signal

Add it to your home screen once. At a dark site it starts and solves without any connection.

Everything stays on your phone

Camera images, location and motion data are processed in the browser and never uploaded. No account, no tracking.

Plan the night

When it gets dark, when the Moon is up, which planets and deep-sky objects are well placed tonight. Plus seeing forecast, light pollution and ISS passes for your location.

With or without the phone camera

Use a USB webcam on the tube instead, or no camera at all: then the top edge of the phone is the pointer, aligned on a bright star.