|
astrological houses: 12-part division of the heavens centred on the celestial pole, also called 'houses of heaven', see article on the astrolabe.
|
astrological instrument: an instrument whose primary use was for astrological purposes, such as casting horoscopes, rather than for observational astronomy.
|
astronomical clock: a clock incorporating astronomical instruments such as an astrolabe or armillary sphere.
|
astronomical compendium: several instruments compiled into one device, see article on the astronomical compendium.
|
astronomical ring dial: a portable astronomical instrument comprising three circles, one to be aligned with the equator, one with the meridian and the third to indicate right ascension and declination. It can be used for astronomical measurement or for telling the time.
|
