Navigation Using an Artificial Horizon 

Excellent. Thank you. No doubt I’ll watch more of your videos. The Ancient Greek info sounds intriguing to learn. I’m sharing celestial navigation with my 88 yo mom cause it interests her as much as me. Old school rocks !

Thank you, Bob. I like your unique way of explaining the fix by stars. It is refreshing.

I'm a retired Master Mariner and navigated before GPS, in the 70's, but I didn't know about the pan of water method of finding double the suns angle from the actual horizon. This is the method of finding the suns true angle above the horizon from an inland location surrounded by hills. I'm Impressed. Otherwise my navigational knowledge using a Sextant is almost complete after using one daily for years.

Good information was given. Thank you for that. The title was misleading. People looking for information on 3 point fixes would not find this video by searching titles.

Thanks for posting this is a very good instructional video.

Thanks Bob...I've been waiting for this

Hi Bob. I have used the roof of my car as an horizon. My intercept was less than 20 minutes. 😃

I tried using an artificial horizon to take a noon site in south Florida the other day. I wasn’t able to do it because the sun was at roughly 70⁰ above the horizon. Twice that would be 140⁰, but my sextant only reads up to 120⁰. I was able to take a reading a few hours later when the sun was lower in the sky. I'm curious which sextant you are using.

I was wondering if you could explain how Amundsen used a sextant to determine how to get to the south pole and also to know that he was at the correct location?

Great video! You lost me at "phone pole" though 😂

Where is the previous video?

I know a better way to illustrate what we measure with a sextant and why we use a horizon (and it is more difficult to abuse by flat earthers): You have three parallel rays from an object in the sky, to three angles on the same ray for zenith. The middle one is to a right angle, between tangent and zenith on the horizon. The upper one is a zenith angle on the sextant. The lower one is a zenith angle around the globe, from the ground point for the horizon to the ground point for the object in the sky. The dip correction is for the angle to the ground point for the sextant.

Is that very expensive

The horizon is horizontal… not curved.

we only have 1 horizon and its not geometric , you cant get an elevation angle from a curved surface , the black swan proved that the earth is flat , its beyond the limitations of the globe math