CamSextant allows measuring altitudes of celestial objects
with the phone as a marine sextant. Or any vertical angle.
The app combines the phone gyroscope reading with camera image. Point the phone to a celestial object and
capture the altitude reading and time necessary
for celestial navigation.
You can calibrate the gyro, by reading the sea horizon altitude. Calibration angle is subtracted from raw sensor reading.
For more information check:
- Capture multiple readings for the same celestial object. Then you can review, select the best or use the average altitude.
- New altitude database
With Family Sharing set up, up to six family members can use this app.