In astronomy, a conjunction occurs when two astronomical objects or spacecraft appear to be close to each other in the sky. This means they have either...

recent planetary conjunctions (in other words, when two planets look close together) for the period 2005–2020. In astronomy, a conjunction is an event, defined...

conjunction, a mathematical operator Conjunction introduction, a rule of inference of propositional logic Conjunction (astronomy), in which two astronomical bodies...

great conjunction is a conjunction of the planets Jupiter and Saturn, when the two planets appear closest together in the sky. Great conjunctions occur...

longitude and vice versa. Celestial mechanics Great conjunction Positional astronomy Portals: Astronomy Stars Spaceflight Outer space Solar System This text...

In astronomy, a planet's elongation is the angular separation between the Sun and the planet, with Earth as the reference point. The greatest elongation...

of each other. A similar conjunction happened in May 2013, but with less visibility. Conjunction (astronomy) Triple conjunction NASA's star chart for March...

Perseverance in October of 2021. Conjunction (astronomy and astrology) List of conjunctions (astronomy) Opposition (astronomy) Khan, Amina (2013-04-05). "NASA...

orbital periods. Eclipse Kepler Mission Occultation Syzygy (astronomy) Conjunction (astronomy) Opposition (planets) Transit of asteroids Transit of Deimos...

interval is then exactly thrice the period of Neptune. Conjunction Phase angle Spherical astronomy Syzygy U.S. Naval Observatory Nautical Almanac Office...

In astronomy, a syzygy (/ˈsɪzədʒi/ SIZ-ə-jee; from Ancient Greek συζυγία (suzugía) 'union, yoking', expressing the sense of σύν (syn- "together") and...

Spherical astronomy, or positional astronomy, is a branch of observational astronomy used to locate astronomical objects on the celestial sphere, as seen...

of astronomy focuses on the contributions civilizations have made to further their understanding of the universe beyond earth's atmosphere. Astronomy is...

Amateur astronomy is a hobby where participants enjoy observing or imaging celestial objects in the sky using the unaided eye, binoculars, or telescopes...

opposition. Astrological symbols Conjunction Opposition Cosmobiology Hamburg School of Astrology Quadrature (astronomy) "The Aspects". Archived from the...

occultations (and conjunctions) of planets Archived 11 July 2011 at the Wayback Machine, TAU astronomy Club Planetary Conjunctions and Mutual Planetary...

Indian astronomy refers to astronomy practiced in the Indian subcontinent. It has a long history stretching from pre-historic to modern times. Some of...

Egyptian astronomy started in prehistoric times, in the Predynastic Period. In the 5th millennium BCE, the stone circles at Nabta Playa may have made...

of astronomy is a list of definitions of terms and concepts relevant to astronomy and cosmology, their sub-disciplines, and related fields. Astronomy is...

Astronomy in China has a long history stretching from the Shang dynasty, being refined over a period of more than 3,000 years. The ancient Chinese people...

In astronomy, the new moon is the first lunar phase, when the Moon and Sun have the same ecliptic longitude. At this phase, the lunar disk is not visible...

Earth. Venus figures prominently in human culture and in the history of astronomy. Orbiting inferiorly (inside of Earth's orbit), it always appears close...

through a telescope. Their phases are "full" when they are at superior conjunction, on the far side of the Sun as seen from the Earth. It is possible to...

oldest accurately dated star chart was the result of ancient Egyptian astronomy in 1534 BC. The earliest known star catalogues were compiled by the ancient...

overlapped considerably with that of astronomy (derived from the Latin astronomia). By the 17th century, astronomy became established as the scientific...

Australian Aboriginal astronomy has been passed down orally, through ceremonies, and in their artwork of many kinds. The astronomical systems passed down...

river crossings or ferry-boats. While the nature of the "crossing" in astronomy has "long been a source of confusion in scholarly and popular opinion"...

Maya astronomy is the study of the Moon, planets, Milky Way, Sun, and astronomical phenomena by the Precolumbian Maya civilization of Mesoamerica. The...

In observational astronomy, phase angle is the angle between the light incident onto an observed object and the light reflected from the object. In the...

L}} ), or Earth–Moon characteristic distance, is a unit of measure in astronomy. More technically, it is the semi-major axis of the geocentric lunar orbit...