New Concept: Conjunctions

[ebortey]

Name the new concept
Conjunctions

Describe the concept
This concept is related to Syzygy

A definition I found was:
“A position of two bodies in the solar system when they have the same celestial longitude, seen from the Earth. The bodies can be a planet and the Sun, two planets or the Moon and a planet. The superior planets are in conjunction with the Sun, when, seen from the Earth, they are right behind the Sun. The inferior planets, such as Mercury and Venus, have two conjunctions with the Sun: inferior conjunction when they are between the Earth and the Sun, and superior conjunction, when they are on the other side of the Sun.”

• An Etymological Dictionary of Astronomy and Astrophysics, by M. Heydari-Malayeri

Describe where the concept fits within the existing hierarchy
Orbits > Conjunctions
@katieefrey mentioned that the concept could possibly be listed along with Syzygy under Astrometry

Please include any additional comments/feedback
This issue was created to split up #355
This is a remaining concept from the original suggestions from Dr. Nielbock
See also #344