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    Re: Do stars have fingerprints?
    From: Greg Rudzinski
    Date: 2017 Jul 24, 07:44 -0700

    Are you refering to x-ray pulsars for star ID and CN ?

    https://en.wikipedia.org/wiki/X-ray_pulsar-based_navigation

    If made small enough at low cost then there may be useful applications.

    Greg Rudzinski

    From: David Pike
    Date: 2017 Jul 24, 00:40 -0700

    This is an offshoot of the artificial horizon discussion.  I can see, in theory at least, that you could design an application where if you knew roughly where you were and had a rough azimuth and altitude on a bright star, you could identify it digitally.  Conversely, if you had accurate 'point-and-shoot' azimuths and altitudes on three known bright bodies, you could design an application to calculate your rough position digitally very quickly.  Can you ever solve the case digitally when you have no idea where you are, and you can’t even identify the three bright objects visually?  In other words, can you design and incorporate a device to identify the three unknown bright objects from their electromagnetic transmissions or their position in relation to background clutter in the field of view.   A device which did all of those things would be worth having, especially if it could also work through cloud.  DaveP

       
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