Celestial Chaperon

Sextant, compass to guide O'er the briny divide Through choppy waters glide Into earth's dark shadows slide Sailor's moon to chart route Heavenly beams Luna's clout Glowing beacon, faithful scout Illuminating escort from celestial redoubt Steadfast companion during black night Hovering over the horizon blushing bright Rippling Poseidon's tides from lofty height Refracting sun's rays bestowing residual light Nexus between earth and sky Points and angles to imply Perspective and context apply Linear position will supply