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Old 20-07-2017, 10:17 PM
Wavytone
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Wavytone is offline
 
Join Date: Jul 2008
Location: Killara, Sydney
Posts: 4,147
Thank you Alex ! Something I did long ago...

8. Point camera in the general direction of the Pole and expose for several minutes (I did this with film and used 20 minute exposures). The image will show lovely arcs all rotating around the pole.

Use the Mark I eyeball nature provided to guess the centre of the arcs. Look up. You'll figure the rest.

I made a negative print of this and used to carry it with my ancient C8 to line up the polar axis on the SCP. Won't go into how - too long for here - you have to see this done on the field and it requires a clear view of the pole which you don't have.
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