Celestial positioning · Experimental tool

SextantPhone

Use the phone camera and motion sensors to measure directions to celestial bodies. Start with three observations and add more to improve the estimate.

Point and record

Choose a celestial body first. The camera and AR open only after you press Point body with AR.

Celestial body

Camera and sensors are inactive until you open AR.

Azimuth: —Elevation: —

Observation time (UTC)Azimuth, degreesElevation, degrees

At least three observations are required.

Observations

Each observation stores its exact UTC time. Repeating an observation reduces pointing noise; different bodies improve the geometry.

No observations yet.

Current estimate

Latitude—

Longitude—

Approx. uncertainty—

Obtaining GNSS/device reference…