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Star Calendar - May 2017 | Star Calendar
Star Calendar May 2017 Start Calendar Planets: Moon and Sun each elongate the fluid earth and exert tidal stress on the viscous and solid earth. This stress and shape distortion moves around the longitudinal earth in the two periods 12.42 and 12 hours respectively but also change latitude (declination) according to each body's characteristic seasonal movement. Proximity of each body further modulates the effect. We then have a complex combination of rhythms and directions of tidal stress/distortion which serve to enhance and diminish each other. But the world is not covered evenly in fluid – there are instead basins and channels of various size that the generated tidal wave must negotiate. The size, orientation and capacity of this complex serve to also generate resonances and nodes so that local expressions of these stress inputs can appear sensibly aligned or apparently out of phase, greatly enhanced or diminished. The largest noticeable rhythm in most instances is the M2 tide (Moon