ALTITUDE n.
The elevation of a point, or star, or other celestial object, above the horizon, measured by the arc of a vertical circle intercepted between such point and the horizon. It is either true or apparent; true when measured from the rational or real horizon, apparent when from the sensible or apparent horizon.…
ANGEL n.
A spiritual, celestial being, superior to man in power and intelligence. In the Scriptures the angels appear as God's messengers. O, welcome, pure-eyed Faith, white-handed Hope, Thou hovering angel, girt with golden wings. Milton.
ASTRONOMY n.
The science which treats of the celestial bodies, of their magnitudes, motions, distances, periods of revolution, eclipses, constitution, physical condition, and of the causes of their various phenomena.