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    Re: Stars and planets to the west at Evening Twilight
    From: Greg Rudzinski
    Date: 2012 Jul 22, 20:09 -0700

    Bruce,

    I think you are ready to use Pub 249 vol. 1 (selected stars). Enter with Latitude and Local Hour Angle of Aries and the table will give seven selected star altitudes and azimuths. There will be three stars marked with a black diamond that will have optimal azimuths for a fix. For 42 North 70 West the three optimal stars for a 20:40 civil twilight this evening are:

    Deneb Hc 41* Zn 061*
    Antares Hc 21* Zn 174*
    Dubhe Hc 43* Zn 321*


    Greg Rudzinski

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