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> Find a laser pointer, preferably one with that you can leave on for a  while,
> like a laser level from a hardware store (<$15). Set the sextant on  its side
> on a table in a long hallway and set it for 0deg 0.0 minutes. Aim the  laser
> through the telescope shifting it up and down until you see two spots of
> light on the far wall.

Frank

Before I reinvent the wheel yet a again, does the laser have to be a point
source, or could one that projects a line segment work?

Do you point the laser at the front or back of the sextant scope?

Thanks

Bill

   

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