Help !...
×

This is a way to practice sextant observations without spending time on almanacs and calculation tables.
Enter the UTC Date - or click the "Now" button.
Enter your estimated position - or enable the "GeoLocation".
Select the body to observe.
Then, you may:
  • Enter your sextant elevation and hit the "Calculate" button
  • Hit the "Reverse" button, to see what you should observe
You would then see for yourself, data should be displayed on screen!

OlivSoft never stops

Sight Reduction

Check your observations and calculations
Sextant
French Flag

UTC Date of observation:
  
Estimated Latitude: ° '
Estimated Longitude: ° '
Enable GeoLocation
Body:
Sextant Elevation: ° '
Eye Height (meters): m

© 2025, Oliv Cool Stuff Soft.