• Declination: -080 12’ 06” Based on parallax measurements obtained during the Hipparcos mission, it is approximately 360 light-years (110 parsecs) distant from the Sun. The list is dominated by hot blue stars which produce the majority of their energy output in the ultraviolet, but these may not necessarily be the brightest stars at visual wavelengths. With a combined visual magnitude of +0.76, it is the brightest object in Crux and the 13th brightest star in the night sky. It is visible to the naked eye with an apparent visual magnitude of 4.50. Sometimes referred to as the “foot of the centaur”, this system of three stars consists of Alpha Centauri A, Alpha Centauri B, and Alpha Centauri C, with Alpha Centauri C being the closest star to earth, hence the name “Proxima Centauri”, that is sometimes used to refer to Alpha Centauri C. Compared to Earth’s Sun, Alpha Centauri A is around 1.5 times as bright. Appearing as a single point of light to the naked eye, it is resolvable into a number of components through a telescope. Known as Rigel, Algebar, Elgebar, Beta Orionis, HR 1713, HD 34085. Needless to say, how bright a star appears to an observer is determined not only by the factors already mentioned, but also by its distance from Earth. A star of spectral type B8Ia, Rigel is calculated to be anywhere from 61,500 to 363,000 times as luminous as the Sun, and 18 to 24 times as massive, depending on the method and assumptions used. Using the parallax measurements made during the Hipparcos mission, the distance to this star system can be estimated as 81.1 light-years, give or take a half-light-year margin of error. currently as seen by The system has a combined apparent magnitude of 3.87, making it visible to the naked eye even in inner city skies. Absolute mag: 0.4 • Absolute Mag: 1.4 The brighter primary is named Arkab Prior, the traditional name of the system. It is the second brightest star in the constellation of Orion. • Spectral Type: Blue-white (A1Vm). Here the maximum visible magnitudes above the second brightest star, Sirius (−1.46), are as follows. Vega ("falling" in Polaris interesting meanings, including Alpha Aquilae Altair 19 51 +8.9 47.8 -9.0 A7V 0.77 2.21 194.44 0.94 17 13. Along with Altair and Deneb, Vega forms a trio of stars popular called the Summer Triangle, which in the northern hemisphere announces the beginning of summer. For the absolute luminosity of stars, see, Name does not appear in the IAU Catalog of Star Names, List of brightest natural objects in the sky, Stellar brightness is traditionally based on the, A select number of stars, thought to be uniformly fixed in brightness, are used as. This list is currently limited mostly to objects in our galaxy and the Magellanic Clouds,, but a few stars in other local group galaxies can now be examined in enough detail to determine the luminosities. • Constellation: Bootes For example, some red supergiants in the Magellanic Clouds are suspected to have slightly different limiting temperatures and … • Constellation: Eridanus • Distance: 1400 light years The 30 brightest stars. This list of nearest bright stars is a table of stars found within 15 parsecs … Based upon parallax measurements obtained during the Hipparcos mission, the distance to Gamma Arietis from the Sun is approximately 164 light-years. It has an apparent visual magnitude of +3.87, which is bright enough to be seen with the naked eye. August 16, 2015 The annual parallax shift of 2.6 mas provides a distance estimate of around 1,200 light years. Also known as Suhel, Suhail, Alpha Carinae, HR 2326, HD 45348. Delta Velorum is a triple star system in the southern constellation of Vela, near the border with Carina, and is part of the False Cross. Rigel, designated β Orionis, is a blue supergiant star in the constellation of Orion, approximately 860 light-years (260 pc) from Earth. Binary system containing two luminous WNh stars. Variable, luminosity was five times higher at outburst in 1994. www.astronomytrek.com/list-of-10-brightest-stars-in-the-night-sky : 0.2 Also known as Haris-el-sema, Alpha Bootis, HR 5340, HD 124897. • Apparent mag: 0.50 (Variable.) Stars can be as bright as absolute magnitude -8 16 BRIGHTEST STARS (Visible in the Northern Hemisphere) APPARENT STAR DIST BRIGHTNESS LUMINOSITY Temperature TYPE (LY) (Sun at (Sun = 1) of Surface(K) 32.6 LY=1) 1. Rigel is the brightest and most massive component—and the eponym—of a star system of at least four stars that appear as a single blue-white point of light to the naked eye. Alpha Orionis Betelgeuse 05 55 +7.4 199.8 -9.0 M2Ib 0.55v -5.04v 7.63 1.64 430 11. This is not the same as a list of the brightest stars as seen with the naked eye, because close binary or multiple star systems will appear as a single star brighter than their individual components. • Constellation: Carina Based on parallax measurements obtained during the Hipparcos mission, it is approximately 960 light-years distant from the Sun. It is also expected to increase considerably in luminosity as it approaches the solar system in the far distant future. Also known as Alpha Eridani, HR 472, HD 10144. The name, Procyon, derives from the Greek phrase “before the dog”, referring to the fact that it rises before Sirius, the “Dog Star.” This yellow-white star is twice the size of our sun and seven times as luminous, but appears so bright because it is relatively close at 11.4 light-years. • Apparent mag. Mu Sagittarii is a multiple star system in the constellation of Sagittarius. are really nearby, on a cosmic scale, and that they are generally In 1862 Sirius was discovered to be a binary star system, with a companion star. The Albireo system is a double star designated Beta Cygni. The binary system Alpha Centauri has an apparent magnitude of -0.27, but the brightest individual star is Alpha Centauri A with the apparent magnitude as listed here of -0.01. It's likely that you do, even though Achernar is the primary component of the binary system designated Alpha Eridani, which is the brightest star in the constellation of Eridanus, and the ninth-brightest in the night sky. It is moving further away from Earth with a heliocentric radial velocity of +10 km/s. For perspective, the overall range of stellar luminosities runs from dwarfs less than 1/10,000th as luminous as the Sun to supergiants over 1,000,000 times more luminous.

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