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    Re: An equal altitude puzzle
    From: Peter Hakel
    Date: 2013 May 19, 13:11 -0700
    I concur with Greg Rudzinski's result as a possible solution.  The attached waypoints.xls spreadsheet can be used to compute any point (its latitude) along a great circle by entering longitude as a free parameter.


    Peter Hakel



    From: Greg Rudzinski <gregrudzinski@yahoo.com>
    To: pmh099@yahoo.com
    Sent: Saturday, May 18, 2013 10:49 PM
    Subject: [NavList] Re: An equal altitude puzzle


    In round numbers 40° N 82° W with Hc star pair at 18° 40' and Sun 13° 30' below horizon. I guess that's someplace in Ohio around 22:00 daylight savings time (ZD +4).
    Greg Rudzinski
    An equal altitude puzzle
    From: Frank Reed
    Date: 2013 May 18, 18:40 -0700
    On May 19, 2013 at 02:00:00 GMT (local date May 18), I observe the altitudes of the stars Procyon and Capella. The altitudes are exactly the same, but I'm not going to tell you the actual numerical value. Where are you? There is a specific locus of points where you might be found. Note: both stars are at least 1° above the horizon, and the Sun is at least 6° below the horizon.
    -FER
    PS: I added degree symbols, °, to this post using 'd' in square brackets as I described in an admin post two days ago. That is, you type ° but with a lower case d, and it will be converted automatically to a degree symbol. Just a shortcut. Works when you post from the message boards and also when posting by email.
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    File: 124095.sailings.xls
    File: 124095.waypoints.xls
       
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