T=0 could be a recent supernova for a secular short measurement span considering the life span of Earth. OR T=0 could also be a local solar system event that is easily determinable on Earth.
For someone measuring events on Earth a million years from now, give or take a ppm :-) or they may not care! >I think this is a sort of relativity question, isn't it? That is, you just >have to pick some place/time, and reference everything else to that. So which >astronomical event do you want use as your reference (e.g. a T=0 epoch)and is >it sufficiently well determined that you can figure it out later? It's all >well and good, for instance, to use noon on January 1st, 1900 or something as >your time zero, but that's hardly a universally available reference point. -- Raj, VU2ZAP Bangalore, India. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
