Abstract: A sundial comprising a transparent hollow globe marked with latitude and longitude lines and including a map of the world is mounted on a stationary base. The globe is adjustable with respect to the base to enable the polar axis to be inclined toward a geographic pole of the earth and to permit alignment of a desired geographic location on the map with an index point. A reflector is mounted at the center of the globe and focuses an image of the sun onto the interior surface of the globe. The image traverses the globe as the earth rotates, thereby tracking the actual path of the sun with respect to the earth on the globe surface.

Abstract: The device comprises a declination adjustable solar ray directed assembly straddling the rim of a circular segment, hinged on the polar axis of an equatorial mount. The circular segment has a holding means for positioning it on the rim of a time dial placed on the equatorial mount. Shoes are attached to the solar directed assembly and ride on the rim of the circular segment, or shoes are attached to a support stand for the equatorial mount and ride on the rim of the equatorial mount. The support stand has a leveling base with two pairs of adjustable legs and pivoted feet providing stiffness in mutually perpendicular planes while allowing for tilting adjustment in alternate planes during the leveling operation.

Abstract: An orbital mission planning indicator device provides a visual indication of the relationship between the plane of orbit of an artificial earth satellite and the angle of incidence of solar energy thereon, for all seasons of the year and for arbitrary times and places of launch of such satellite. It also provides indications of the relationship of deep space points of interest to the same orbital plane for adaptability of pointable sensors such as telescopes, antennas and solar arrays to orbital missions calling for use of such equipments.