Quote:
Originally Posted by Barrykgerdes
The south celestial pole through an eyepiece FOV 30Arc minutes. Roughly a 10" SCT with a 26mm Plossl eyepiece. Taken from stellarium
but quite close to what I actually see.
The first is the J2000 view which I used originally. The second is the J2011 view showing the precession of 11 years
Barry
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Those charts are good Bazza. When I first did the accurate drift align in 05 the location of the SCP was closer to the position in the first map ie I used to point the cross hair to a pioint that made an equilateral triangle with the two doubles (both appear singular through my polar scope though), I now point to a position that forms a slightly flattened equilateral triangle with the two doubles...hence, looking at your charts, why I get so close
..I think by about 2030 the SCP will sit perfectly between the two double stars, this should make for very accurate polar aligning using this method and very easy too.
Mike