Astronomy

Astronomy is the scientific study of celestial bodies. Stars, galaxies, planets, moons, asteroids, comets and nebulae are studied, as are supernovae explosions...

Radio astronomy is astronomy which studies celestial objects at radio frequencies. The first detection of radio waves from an astronomical object was made...

Extragalactic astronomy is astronomy about objects outside our Milky Way galaxy. It is the study of everything that is not covered in galactic astronomy: the study...

In astronomy, an epoch (or sometimes epochal moment) is a moment in time for which the position or the orbital elements of a celestial body are specified...

history of astronomy tells how civilizations thought about the sky they saw at night. It also discusses the beginnings of modern astronomy. Babylonian...

Amateur astronomy is a hobby where people look at or photograph objects in the sky using their eyes, binoculars, or telescopes. They can look at the sky...

X-ray astronomy is a field of astronomy that analyzes the x-rays coming from space. Most x-rays are filtered by earth's atmosphere so x-ray astronomy is...

people in the world to develop ideas with astronomy. It is possible that their interpretation of astronomy is the oldest still alive today. Studying astronomical...

Bright Star Catalogue Robert Bruce Thompson; Barbara Fritchman Thompson, Astronomy Hacks (Sebastopol, CA: O'Reilly, 2005), p. 88 Rony De Laet, The Casual...

glossary of astronomy is a list of definitions of terms and concepts relevant to Astronomy and Cosmology. with their related fields, Astronomy is involved...

The International Year of Astronomy by the International Astronomical Union (IAU) and UNESCO. It was a celebration of astronomy around the world with 141...

A provisional designation in astronomy is the naming convention of astronomical objects as soon as they are found. The provisional designation is usually...

Conjunction is a word used in astronomy and astrology. It means that, as seen from some place (usually the Earth), two celestial bodies appear near one...

Opposition is a word used in observational astronomy (and also astrology). It is used when two objects in the sky are on the opposite side of the sky...

Photometry is a method of problem solving in astronomy. It aims to measure flux. When photometry is performed over broad wavelength bands of radiation...

In astronomy, a Julian year (symbol: a) is a unit to measure time. It has exactly 365​1⁄4 days of 86,400 seconds each. That is the average length of the...

In astronomy, voids are the empty spaces between filaments. Filaments and voids are the largest-scale structures in the Universe. There are no or few...

hierarchical clustering of very many galaxies due to quantum mechanical fluctuations "Galactic Filaments | COSMOS". astronomy.swin.edu.au. Retrieved 2020-10-23....

The Adler Planetarium & Astronomy Museum is a planetarium in Chicago, Illinois, U.S.. It was the first planetarium built in the Western Hemisphere and...

In astronomy, first light is the first time a telescope is used to look at the Universe. This is often not the first time the telescope has been used...