In astronomy for example, a photometric aperture around a star usually corresponds to a circular window around the image of a star within which the light intensity is assumed.

In Hindu astronomy, Regulus corresponds to the Nakshatra Magha.

In physics and astronomy, the Reissner – Nordström metric is a static solution to the Einstein-Maxwell field equations, which corresponds to the gravitational field of a charged, non-rotating, spherically symmetric body of mass M.

The use of different angular units can be surprising, but it is hardly different to the current situation in modern astronomy, where the angular unit used to measure angular distances between two points is certainly the same as for declination ( the degree ), but is different for right ascension ( which is expressed in angular hours ; an angular hour corresponds to exactly 15 degrees.

The star cluster ( Sanskrit: क ृ त ् त ि क ा, pronounced, popularly transliterated " Krittika ") sometimes known as Kārtikā, corresponds to the open star cluster Pleiades in Indian astronomy and ( Hindu astrology ).

* Aquila ( Chinese astronomy ), a traditional constellation

In modern astronomy, a constellation is an internationally defined area of the celestial sphere.

In Chinese astronomy, constellation Capricornus lies in The Black Tortoise of the North ( 北方玄武, Běi Fāng Xuán Wǔ ).

In Australian Aboriginal astronomy, Lyra is known by the Boorong people in Victoria as the Malleefowl constellation.

** In astronomy, as a ranking of a star's brightness within a constellation

* Phoenix ( Chinese astronomy ), constellation

The Global Positioning System | GPS constellation calls for 24 satellites to be distributed equally among six circular orbital plane ( astronomy ) | orbital planes

In astronomy, the Pleiades ( or ) or Seven Sisters ( Messier object 45 or M45 ), is an open star cluster containing middle-aged hot B-type stars located in the constellation of Taurus.

In Chinese astronomy, Rasalgethi is called 帝座, Pinyin: Dìzuò, meaning Emperor's Seat, because this star is marking itself and stand alone in Emperor's Seat asterism, Heavenly Market enclosure ( see: Chinese constellation ).

In Hindu astronomy, the Sapta ( seven rishis ) form the constellation of Ursa Major, which are distinct from Dhruva ( Polaris ).

According to the historian of science Norwood Russell Hanson: There is no bilaterally-symmetrical, nor excentrically-periodic curve used in any branch of astrophysics or observational astronomy which could not be smoothly plotted as the resultant motion of a point turning within a constellation of epicycles, finite in number, revolving around a fixed deferent. Any path — periodic or not, closed or open — can be represented with an infinite number of epicycles.

In astronomy, the culmination of a planet, star, constellation, etc.

The second part is a detailed sky atlas for amateur astronomy observations: for each constellation, a list of bright and dim stars, deep sky and other notable objects is given to the reader.

Happer, an avid astronomy buff, tells Mac to watch the sky, especially around the constellation Virgo, and to notify him immediately if he sees anything unusual.

* Sagittarius ( constellation ), in astronomy

Sankranthi () means transmigration of the Sun from one Rāshi ( constellation of the zodiac in Indian astronomy ) to the next.

The constellation Reticulum was designated to recognize the reticle and its contributions to astronomy.

* Cancer ( Chinese astronomy ), the constellation Cancer in Chinese astronomy

* Brocchi's Cluster ( astronomy ), a random grouping of stars located in the constellation Vulpecula near the border with Sagitta

Note: The Orion of the title does not refer to the green-skinned humanoid species seen within Trek, but is an allusion to mythology and astronomy, likely inspired by the Orion constellation and connected tales.

In Chinese astronomy, Deneb Kaitos is called 土司空, Pinyin: Tǔsīkōng, meaning Master of Constructions, because this star is marking itself and stand alone in Master of Constructions asterism, Legs mansion ( see: Chinese constellation ).

In Chinese astronomy, Nu Scorpii is called 鍵閉, Pinyin: Jiànbì, meaning Door Bolt, because this star is marking itself and stand alone in Door Bolt asterism, Room mansion ( see: Chinese constellation ).

In Chinese astronomy, Tejat Prior is called 钺, Pinyin: Yuè, meaning Battle Axe, because this star is marking itself and stand alone in Battle Axe asterism, Well mansion ( see: Chinese constellation )

In Australian Aboriginal astronomy, Crux and the Coalsack mark the head of the ' Emu in the Sky ' in several Aboriginal cultures, while Crux itself is said to be a possum sitting in a tree and a representation of the sky deity Mirrabooka.

* Crux ( Chinese astronomy )

Russell also refers to Aristotle's ethics as " repulsive ", and calls his logic " as definitely antiquated as Ptolemaic astronomy ".

Amateur astronomy, also called backyard astronomy and stargazing, is a hobby whose participants enjoy watching the sky, and the plethora of objects found in it, mainly with portable telescopes and binoculars.

Amateur astronomy is usually associated with viewing the night sky when most celestial objects and events are visible, but sometimes amateur astronomers also operate during the day for events such as sunspots and solar eclipses.

Non-visual amateur astronomy includes the use of infrared filters on conventional telescopes, and also the use of radio telescopes.

Apart from the fundamental function of providing astronomers with a reference frame to report their observations in, astrometry is also fundamental for fields like celestial mechanics, stellar dynamics and galactic astronomy.

He was educated at the Collège des Quatre-Nations ( also known as Collège Mazarin ) from 1754 to 1761, studying chemistry, botany, astronomy, and mathematics.

Archaeoastronomy is also closely associated with historical astronomy, the use of historical records of heavenly events to answer astronomical problems and the history of astronomy, which uses written records to evaluate past astronomical practice.

He won a scholarship to the University and majored in mathematics, and also studied astronomy, physics and chemistry.

Howell Memorial Science Building The BJU science department, which supports young-earth creationism, offers majors in biology, chemistry, and physics and also offers courses in astronomy.

There are also numerous historical constellations not recognized by the IAU, or constellations recognized in regional traditions of astronomy or astrology, such as Chinese, Hindu and Australian Aboriginal.

Indian astronomy is also based on Hellenistic tradition, via transmission by the Indo-Greek kingdoms.

Australian Aboriginal astronomy also describes dark cloud constellations, the most famous being the " emu in the sky " whose head is formed by the Coalsack.

The table has also found wide application in physics, geology, biology, materials science, engineering, agriculture, medicine, nutrition, environmental health, and astronomy.

These can include shi ( 史, historical works ), zi ( 子, philosophical works belonging to schools of thought other than the Confucian, but also works of agriculture, medicine, mathematics, astronomy, divination, art criticism, and all sorts of miscellaneous writings ) and ji ( 集, literary works ) as well as jing.

Cartesian coordinates are also essential tools for most applied disciplines that deal with geometry, including astronomy, physics, engineering, and many more.

This becomes significant in theoretical considerations of astronomy and cosmology, and also in some practical problems such as global positioning and airplane navigation.

These missions have also investigated air density, radio astronomy, geodesy, and gamma ray astronomy.

Hubble was also a dutiful son, who despite his intense interest in astronomy since boyhood, surrendered to his father ’ s request to study law, first at the University of Chicago and later at Oxford, though he managed to take a few math and science courses.

The Laboratory's primary function is the construction and operation of robotic planetary spacecraft, though it also conducts Earth-orbit and astronomy missions.

He is also renowned for his work in mechanics, fluid dynamics, optics, and astronomy.

** In astronomy ( cosmology ) Ω refers to the density of the universe, also called the density parameter.

In planetary astronomy, ancient craters on icy moons of the outer Solar System whose relief has mostly disappeared, leaving behind only an albedo feature or a trace of a rim, are also known as palimpsests or ghost craters.