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    Re: Swinging the Arc
    From: Byron Franklin
    Date: 2012 Aug 19, 18:37 -0700

    Byron: Frank and Navlist members.
    I have a Question, What do you or navlist members, consider inaccurate with Celestial navigation?
    You do not use CELO in the harbor but use it in open water to safety transit from place to place.
    I would take a sight above 60 degree. Why not? How accurate fix do you need? Especially on a large ship
    in deep water with a distance to the horizon for an eye of 36 ft. is near 7 miles. Certainly you can get a fix closer than that to inspect the distance to the horizon by eye for your safety. It is nice to want an accurate fix and it can be a great satisfaction to get that tight fix or three pointer. The idea is to ensure the safety of the ship. I have been in the position and it can be predictable that the high stars popped out early. You have to get what is available and hope to later get stars in a better lower Altitude range. The higher the star the more she will run the horizon, another reason for putting her in the water. Quickly in and out, mark. I would hope to hear a discussion on these subjects. Accuracy and high stars Newer sextants can get greater accuracy than what I am use to.

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