A recently invented instrument for observing the heavenly bodies as they cross a given almacantar circle
2
The apart or practice of measuring the diameters of heavenly bodies, their relative distances, etc
3
n a quarter of the circumference of a circle n any of the four areas into which a plane is divided by two orthogonal coordinate axes n the area enclosed by two perpendicular radii of a circle n a measuring instrument for measuring altitude of heavenly bodies
4
was believed to be the substance composing all heavenly bodies n
5
Relating to the religion of Saba, or to the worship of the heavenly bodies. n
