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    Re: Timesight at sunset?
    From: Tom Sult
    Date: 2013 Jan 10, 20:24 -0600
    Good idea. I have iNA, star pilot and star walk on my phone. I don't have any historical texts. 

    Thanks again. This weekend perhaps. What is the refraction at -30. We are currently warm but the Alberta air is coming to MN ;  ) 

    Tom Sult
    Sent from my iPhone

    On Jan 10, 2013, at 19:25, Frank Reed <FrankReed{at}HistoricalAtlas.com> wrote:

    For your next time sights, why not download a 19th century copy of Norie or Bowditch (or Martelli's Time Tables, if you want to join the party :)) right on your iPhone. I have quite a few navigation works on my smartphone (the infamous Samsung Galaxy S3 running Android).

    Here's a short link to a bunch of options you can consider:

    Or if you want an online calculator, you can just use the USNO site:
    and modify your position until it produces the right altitude at the right GMT.


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