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    Re: Star CN with DSLR Camera
    From: Greg Rudzinski
    Date: 2016 Jan 28, 08:17 -0800

    Bill,

    If you would like to work through the example image then here are the givens:

    Time  00:41:47 UT   8/24/2015  

    Camera image time 16:41:47  8/23/2015 ZD +8 PST (not summer PDT) 

    A.P. Lat. 34° 10' N  Lon. 119° 14' W

    Pixel count 2401 (by Windows Paint)

    .56(2401 px)=1344.6'=22° 24.6'° (see calibration card attached, .56 is 35mm lens calibration multiplier) 

    Pixel corr. - 2.5' (see calibration card attached at 2401 px)

    Hs = 22° 22.1'

    Height of Eye 7ft.  -2.6'

    Refraction  -2.3'

    Ho = 22° 17.2'

    Hc = 22° 18.9'

    intercept 1.7' away

    azimuth 268.7°

    Greg Rudzinski



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