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A star map is a map that shows you different constellations. This is an example of a star map; it shows you many of the different constellations. This is a star map of the Northern Hemisphere and the different constellations that you can see. [1] The Northern star can be easily spotted because of its brightness. It is one of the brightest start and is easily found, that is why it is used for direction and because you can locate it easily, because of its apparent magnitude.

A constellation is a group of stars that seem to form shapes or patterns, a good example of that is the big and small dipper. Those are easy to spot because they a in the shape of a spoon, and can be seen very easy when the stars are shining. Constellations can be used as calendars, time keepers, and direction finders for those who know how to read the stars. The ancient Greeks, Orion was a great hunter, and he was a part founder of the constellations. [2] The Greeks were the main founders of constellations because they used them to guide them in their long journeys throughout lands. Polaris is an easy star to spot in the sky and it is used for navigation purposes; because they will know which way they are suppose to go from there.

Sun || -26.72 || 4.8 || [|Sirius] || -1.46 || -2.5 || [|Canopus] || -0.72 || -2.5 || [|Rigil Kentaurus] || -0.27 || 4.4 || [|Arcturus] || -0.04 || 0.2 || [|Vega] || 0.03 || 0.6 || [|Capella] || 0.08 || 0.4 || [|Rigel] || 0.12 || -8.1 || [|Procyon] || 0.38 || 2.6 || [|Achernar] || 0.46 || -1.3 || [|Betelgeuse] || 0.50 (var.) || -7.2 || [|Hadar] || 0.61 (var.) || -4.4 || [|Acrux] || 0.76 || -4.6 || [|Altair] || 0.77 || 2.3 || [|Aldebaran] || 0.85 (var.) || -0.3 || [|Antares] || 0.96 (var.) || -5.2 || [|Spica] || 0.98 (var.) || -3.2 || [|Pollux] || 1.14 || 0.7 || [|Fomalhaut] || 1.16 || 2.0 || [|Becrux] || 1.25 (var.) || -4.7 || [|Deneb] || 1.25 || -7.2 || [|Regulus] || 1.35 || -0.3 || [|Adhara] || 1.50 || -4.8 || [|Castor] || 1.57 || 0.5 || [|Gacrux] || 1.63 (var.) || -1.2 || [|Shaula] || 1.63 (var.) || -3.5 || The left side represents the commonly known name, the middle column reprensents apparent magnitude, and the right side represents absolute magnitude. This table represents 'apparent and absolute magnitudes'. Apparent magnitude is the measure of brightness the viewer can see. [3] Meaning that; the brightness we see from earth is calculated and can be given a measure, that measure is called Apparent Magnitude. Absolute magnitude measures a celestial object's intrinsic brightness [4]. Meaning that it is a measure of a star or moons naturally produced brightness. Stellar brightness is a star's brightness as we see it from Earth. Meaning that how we see the stars brightness. [5]  The Greeks discovered 48 of the 88 constellations that have been discovered. Many of the other 40 constellations were discovered by the Arabs, Egyptians, & the Babylonian. Some of the constellations were named after some of the people that found them, a good example of that is Orion, because he was a Greek astronomer that discovered constellations. [6]

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