Solunar Tables provide a couple of the many variables that go into catching fish. Barometric pressure and weather patterns also play a large part. Those stars just indicate optimum timing in tidal movement and the related effect of the moon's gravity pull. If that were all that was necessary to catch fish, your bathtub would be just as good a place to drop a line as any.
If you have an opportunity to go fishing ... GO! Fish don't read TSJ.
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For an angler to do something truly stupid, mere incompetence is not enough; you really need an audience.