For the most part, Bayer assigned Greek and Latin letters to stars in rough order of apparent brightness, from brightest to dimmest, within a particular constellation.

In addition to Alpha Centauri ( the 3rd brightest star in the sky ), a second first magnitude star, Beta Centauri, is part of Centaurus.

Apart from the unusual Eta Carinae, Mira is the brightest periodic variable in the sky that is not visible to the naked eye for part of its cycle.

Duquesne Works, a productive steel mill that was part of Carnegie Steel Corporation and later part of U. S. Steel, was the heart and soul of Duquesne during its brightest moments in the early 20th century.

Beta Ursae Minoris ( β UMi, β Ursae Minoris ) is the brightest star in the bowl of the " Little Dipper " ( which is part of the constellation Ursa Minor ), and only slightly fainter than Polaris, the northern pole star and brightest star in Ursa Minor.

These tend to be the brightest stars, or stars that form part of constellation patterns with the brightest stars.

Situated within the brightest part of star cloud M24, it is classified by Shapley as type " g ".

The ε ring is the brightest and densest part of the Uranian ring system, and is responsible for about two-thirds of the light reflected by the rings.

The parallax of the two brightest stars were measured as part of the Hipparcos astrometry mission.

For example, the brightest part of the sky near the horizon where the sun recently set does not fall directly on one of the lines, but does fall near the intersection of two of the lines, close enough to take advantage of the rule.

For example, every year the centre's Summer Research Fellowship programme hosts some of the very brightest undergraduates in the country ; the Educational Technology Unit produces a range of teaching aids and educational material ; the centre also organises and teaches short-term courses at universities across India ; and promising young chemists and biologists are trained intensively as part of the programmes of Project-Oriented-Chemical-Education ( POCE ) and Project-Oriented-Biological-Education ( POBE ).

Composed of members of the Atlanta Symphony and Opera Orchestras as well as musicians from Atlanta ’ s independent music community, the ensemble has been hailed by Gramophone Magazine as “ one of the brightest ensembles on the scene ,” and by the Atlanta Journal Constitution as “ a suddenly indispensable part of the Atlanta music scene .” Since their inception in 2003, they have received widespread critical acclaim for their musical virtuosity and innovative programming.

( It is sometimes listed as 15th brightest, if the two brighter components of the Capella quadruple star system are counted as one star.

AA Ceti is a triple star system ; the brightest member has a magnitude of 6. 2.

Under that standard, the brightest member of a system receives the letter " A.

In 1912, Vesto Slipher made spectrographic studies of the brightest spiral nebulae to determine if they were made from chemicals that would be expected in a planetary system.

The Regulus system as a whole is the twenty-first brightest star in the night sky with an apparent magnitude of + 1. 35.

They reported that the Dogon believe that the brightest star in the sky, Sirius ( sigi tolo or ' star of the Sigui '), has two companion stars, pō tolo ( the Digitaria star ), and ęmmę ya tolo, ( the female Sorghum star ), respectively the first and second companions of Sirius A. Sirius, in the Dogon system, formed one of the foci for the orbit of a tiny star, the companionate Digitaria star.

Sirius is a binary star system in the constellation Canis Major, appearing as the brightest star in the night sky.

The brightest member, α < sup > 2 </ sup > Librae, is itself a spectroscopic binary system.

The contrast ratio is a property of a display system, defined as the ratio of the luminance of the brightest color ( white ) to that of the darkest color ( black ) that the system is capable of producing.

Thus the ratio of the luminosity of the brightest and the darkest color the system is capable of producing simultaneously at any instant of time is called static contrast ratio, while the ratio of the luminosity of the brightest and the darkest color the system is capable of producing over time is called dynamic contrast ratio.

This conclusion is supported by the observations of a ring plane-crossing event in 2007, when the η ring demonstrated increased brightness, becoming the second brightest feature in the ring system.

In this geometry the ring became the brightest feature of the Uranian ring system, outshining the ε ring.

Observations in 2007 by the Keck telescope during the ring plane-crossing event confirmed this conclusion, because the λ ring became one of the brightest features in the Uranian ring system.

The ζ ring was observed again during the ring plane-crossing event in 2007 when it became the brightest feature of the ring system, outshining all other rings combined.

The brightest parts of the Adams ring, the ring arcs, were the first elements of Neptune's ring system to be discovered.

Lambda Scorpii ( λ Sco, λ Scorpii ) is the second brightest star system in the constellation Scorpius, and one of the brightest stars in the nighttime sky.

The combined apparent visual magnitude of the system is 1. 9, making it the second brightest member of the constellation after Capella.

It was the brightest event known to have been sighted on this planet from an origin outside our solar system.

* α Antliae is the constellation's brightest star at magnitude 4. 25.

It is the brightest galaxy in Antlia at an integrated magnitude of 10. 6.

In the visible spectrum Sirius is the brightest star in the night sky, while in the near-infrared J-band, Betelgeuse is the brightest star in the night sky.

Arcturus (; α Boo, α Boötis, Alpha Boötis ) is the brightest star in the constellation Boötes and in fact the northern celestial hemisphere.

With a visual magnitude of − 0. 04, it is the fourth brightest star in the night sky, after − 1. 46 magnitude Sirius, − 0. 86 magnitude Canopus, and − 0. 27 magnitude Alpha Centauri.

This makes Arcturus the third brightest individual star, just ahead of Alpha Centauri A ( α Cen A ), whose visual magnitude is − 0. 01.

Antares ( α Scorpii, α Sco, Alpha Scorpii ) is a red supergiant star in the Milky Way galaxy and the sixteenth brightest star in the nighttime sky.

) Along with Aldebaran, Spica, and Regulus it is one of the four brightest stars near the ecliptic.

It is the brightest star in the constellation Scorpius, and is often referred to as " the heart of the scorpion ".

Altair ( Alpha Aquilae, Alpha Aql, α Aquilae, α Aql, Atair ) is the brightest star in the constellation Aquila and the twelfth brightest star in the night sky.

Epsilon Ursae Majoris ( Epsilon UMa, ε Ursae Majoris, ε UMa ) is the brightest star in the constellation Ursa Major ( despite its Bayer designation being merely " epsilon "), and at magnitude 1. 76 is the thirty-first brightest star in the sky.

Big Dipper is the American term for the seven brightest stars of Ursa Major, called the Plough in Britain.

Since in a majority of constellations the brightest star is designated Alpha ( α ), many people wrongly assume that Bayer meant to put the stars exclusively in order of their brightness, but in his day there was no way to measure stellar brightness precisely.

Of the 88 modern constellations, there are at least 30 in which " Alpha " is not the brightest star, and four of those lack an alpha star altogether.

The brightest star of the picture is Jupiter.

The brightest star in Capricornus is δ Capricorni, also called Deneb Algedi, with a magnitude of 2. 9, 39 light-years from Earth.