day - night - positioning a nodal point
Do you know a method to find the position of a nodal point, not after a few hours but after a few weeks?
I am writing about a script similar to "day-night" where the 2nd panorama was
taken after a few hours.
How can I do this with taking a tripod to home and after a long time take a parorama in exactly the same position (in order not to see differences between panoramas in SPi-V).
Do you have easy methods, not photogrammetric/geodetic ones.