Astrological aspects

thumb|Totality during the solar eclipse of August 11, 1999, showing the [[solar corona and prominences]] thumb|The lunar umbra on Earth during the solar eclipse of August 21, 2017, as seen from space

branch of astronomy about the celestial sphere

book by Johannes Kepler

aspect of a heavenly body in which it makes a right angle with the direction of the Sun

angle the planets make to each other in the horoscope

conjunction of planets Jupiter and Saturn

1597 astronomy book by Johannes Kepler

Solar system object is on the opposite side of the Sun from the Earth

Sportspersons and Mars at birth time

transit of Venus across the Sun visible from Earth in 1639

thumb|Fully Assembled Cosmolabe by Jacques Besson, 1566 thumb|right|Cosmolabe, 16th century thumb|Foot of a Cosmolabe by Jacques Besson, 1566

astronomical event

Method in Astrology