Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry...

Astronomy is the oldest of the natural sciences, dating back to antiquity, with its origins in the religious, mythological, cosmological, calendrical...

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

Radio astronomy is a subfield of astronomy that studies celestial objects at radio frequencies. The first detection of radio waves from an astronomical...

Unsolved problem in astronomy: Why is the Sun's corona so much hotter than the Sun's surface? (more unsolved problems in astronomy) The temperature of...

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

Astronomy & Astrophysics (A&A) is a monthly peer-reviewed scientific journal covering theoretical, observational, and instrumental astronomy and astrophysics...

In astronomy, an epoch or reference epoch is a moment in time used as a reference point for some time-varying astronomical quantity. It is useful for...

Babylonian astronomy was the study or recording of celestial objects during the early history of Mesopotamia. The numbering system used, sexagesimal,...

Egyptian astronomy Hebrew astronomy Indian astronomy Maya astronomy Inuit astronomy Persian astronomy Serbian folk astronomy Tibetan astronomy Nakh...

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

Geodetic astronomy or astronomical geodesy (astro-geodesy) is the application of astronomical methods into geodetic networks and other technical projects...

Look up astronomy in Wiktionary, the free dictionary. Astronomy is the scientific study of celestial objects. Astronomy may also refer to: Astronomy (Dragonland...

Animation of barycenters In astronomy, the barycenter (or barycentre; from Ancient Greek βαρύς (barús) 'heavy', and κέντρον (kéntron) 'center') is the...

Galactic astronomy is the study of the Milky Way galaxy and all its contents. This is in contrast to extragalactic astronomy, which is the study of everything...

direction. solar system portal outer space portal astronomy portal Baade's Window Galactic astronomy Galactic Center GeV excess Oort constants The distance...

Submillimetre astronomy or submillimeter astronomy (see spelling differences) is the branch of observational astronomy that is conducted at submillimetre...

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

astrological divisions became prominent c. 400 BC in Babylonian or Chaldean astronomy. Constellations appear in Western culture via Greece and are mentioned...

Sidewalk astronomy or street corner astronomy refers to the activity of setting up a telescope in an urban place on a for-profit or non-profit basis as...

"Astronomy" is a song by American rock band Blue Öyster Cult that has appeared on several of the band's albums. It was first released on their 1974 album...

to note [that] this period was called "Saron" by Chaldean authors of astronomy, … ) " … Sari mensura & numerus apud Chaldaeos, etenim 120 Sari constituunt...

Ancient Greek astronomy is the astronomy written in the Greek language during classical antiquity. Greek astronomy is understood to include the Ancient...

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...

Ultraviolet astronomy is the observation of electromagnetic radiation at ultraviolet wavelengths between approximately 10 and 320 nanometres; shorter...

Astronomy Day is an annual event in various countries, intended to provide a means of interaction between the general public and various astronomy enthusiasts...

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

In astronomy, the meridian is the great circle passing through the celestial poles, as well as the zenith and nadir of an observer's location. Consequently...

In astronomy, a syzygy (/ˈsɪzədʒi/ SIZ-ə-jee; from Ancient Greek συζυγία (suzugía) 'union, yoke') is a roughly straight-line configuration of three or...

Observational astronomy is a division of astronomy that is concerned with recording data about the observable universe, in contrast with theoretical astronomy, which...