Alpha Ursae Majoris is brighter. It has a magnitude of 1.81 whereas, Epsilon Ursae Majoris has a magnitude of 1.76.
The greek letter A (alpha) comes before the Greek letter E (epsilon) in the Greek alphabet. Astronomers named stars according to their brightness. Starting with 'A' (alpha) being the brightest and (Omega) being the dimmest.
Epsilon Ursae Majoris (yes, epsilon. Alpha is the second-brightest, though it's a very close second.) It's also sometimes called Alioth.
Eta Ursae Majoris (Alkaid) is a star in the constellation Ursa Major.It is approximately 101 light years from us.
Beta Ursae Majoris (Merak) is a star in the constellation of Ursa Major.Apparent magnitude: +2.34Absolute magnitude: 0.41See related question for the difference.
Dubhe is the traditional name for Alpha Ursae Majoris, a star system in the Plough constellation (Big Dipper). The main star is a orange/red supergiant, but two other smaller yellowish white stars are also part of the same system.
Alkaid, also commonly known as Benetnash and Eta Ursae Majoris, has a magnitude of 1.84. This is the easternmost star in the Big Dipper constellation.
Zeta Leonis Epsilon Canis Majoris Epsilon Tauri Eta Lyrae Gamma Andromedae Mu Lyrae Beta Virginis Pi Sagittarii Epsilon Aquarii Beta Cygni Alpha Corvi 80 Ursae Majoris
Epsilon Ursae Majoris (yes, epsilon. Alpha is the second-brightest, though it's a very close second.) It's also sometimes called Alioth.
Alioth or Epsilon Ursae Majoris
Alpha Ursae Majoris (Dubhe) and Beta Ursae Majoris (Merak), which point to Polaris. (Northern Hemisphere)Alpha Centauri and Beta Centauri, which point to the Southern Cross. (Southern Hemisphere)
The Great Bear or Ursa Major has Stars and is the 3rd biggest constelation as viewed from Earth. The constelation contains the most famous and recognisable of all the astersms in the sky the Big Dipper.The Big DipperFrom the bowl to the handle.Dubhe - (Alpha Ursae Majoris - 124 ly.Merek - (Beta Ursae Majoris - 79 ly.Phecda - (Gamma Ursae Majoris) - 84 ly.Megrez - (Delta Ursae Majoris) - 81 ly.Alioth - (Epsilon Ursae Majoris) - 81 ly.Mizar - (Zeta Ursae Majoris) - 78 ly.Alkaid (Eta Ursae Majoris) - 101 ly.Other starsTalitha (Iota Ursae Majoris) - 487 ly.Tania Borealis (Lambda Ursae Majoris) - 134 ly.Tania Australis (Mu Ursae Majoris) - 249 ly.Alula Borealis (Nu Ursae Majoris) - 421 ly.Alula Australis (Xi Ursae Majoris) - 27 ly.Muscida (Omicron Ursae Majoris) - 81 ly.Alcor (80 Ursae Majoris) - 81 ly.Messier ObjetsM40 - Winecke 4 - Double Star - 510 lyM81 - Bode's Galaxy - Spiral Galaxy - 11.9 Mly. (million)M82 - The Cigar Galaxy - Irregular Galaxy - 11.5 Mly.M97 - The Owl Nebula - Planetary Nebular - 2.6 Kly. (thousand)M101 - The Pinwheel Galaxy - Spiral Galaxy - 27 Mly.M108 - Spiral Galaxy - 46 Mly.M109 - Spiral Galaxy - 46 Mly.
Epsilon Ursae Majoris (Alioth) is the brightest star in the constellation Ursa Major.It is approximately 81 light years from us.
Epsilon Ursae Majoris (Alioth) is the brightest star in the constellation Ursa Major.It is about 3.7 times larger than our Sun.
There is normally no similarity between stars in a constellation or asterism other than the direction they are in relation to Earth. They are normally a collection of dimmer near by stars and brighter further away stars.An example of this is the constellation Centaurus. AlphaCentauri is the closest star system to earth. It has 3 stars, Proxima Centauri which is about 4.2 light years and Alpha Centauri A and B that are 4.3 light years away.On the other side Beta Centauri or Hadar is a bright star 350 light years away.There are however examples where some or most of the stars are connected.Take the asterism the big dipper or plough in the constellation Ursa Major. Merek (Beta Ursae Majoris), Phecda (Gamma Ursae Majoris), Megrez (Delta Ursae Majoris), Alioth (Epsilon Ursae Majoris) and Mizar (Zeta Ursae Majoris) all seem to be about the same distance from Earth (between 78 and 84 light years) and all seem to be moving in the same direction. They are known as the Ursa Major Moving Group.Only Dubhe (Alpha Ursae Majoris) and Alkaid (Eta Ursae Majoris) do not seem to be connected.
Beta Ursae Majoris (Merak) is a star in the constellation of Ursa Major.It is about twice the size of our Sun.
Epsilon Ursae Majoris (Alioth) is the brightest star in the constellation Ursa Major (Big Dipper).It has a spectral class of A0 which means it is a white to white-blue star.
Neither. Epsilon Ursae Majoris (Alioth) is a white star, although it's spectrum is odd, implying that it has a mass about fifteen times the size of Jupiter orbiting it in a highly eccentric orbit.
Pointer stars are stars which are used to find an area of the sky. For example, you might be looking for a dim galaxy or small star. You can use two bright stars on a map, find those in the sky, and then find the approximate position of what you are trying to look at by using the location and spacing of the more obvious pointer stars.