**3.2 Geocentric movements within the photogravitational celestial mechanics**

	- a. Sailing geocentric separation. Spinning to the Moon inside the Earth's sphere of action.
	- b. Environmental aspects of light pressure: a solar sail or a bundle of sails as a solar shield (shield) against global warming, a passive relay, an orbital illuminator (reflector) of near-polar regions, an element of a cable system for changing the orbit of a dangerous asteroid to deflect it from the Earth. Deviation of an asteroid from the orbit of a dangerous approach to the Earth due to an artificial increase in its albedo (blackand-white control coatings), the use of axial spinning of the asteroid due to moments of light pressure forces (the Yarkovsky-Radzievsky effect, i.e., the transverse rotational thermodynamic effect).
	- c. Solar sail in a perturbing Coulomb field—the effect of an electric static charge induced on the sail surface on its strength characteristics and on the dynamics of movement of a vehicle with a sail along a Zander trajectory, charging a thin sailing film in space plasma.
