Constellations Index Stars Chart Astronomy Constellations Boötes No. Name Magni- tude Absolute Magnitude Distance (pc) Surface Temp. (K) Spectral Class Lumin- osity (suns) 4 Arcturus 0.0 -0.2 11 4600 K2 100 273 Nekkar 3.5 0.3 42 5200 G8 58 165 Seginus 3.0 0.4 32 8100 A7 53 274 3.5 0.3 43 5200 G8 61 80 Izar 2.4 -0.9 46 5000 K0 190 390 3.8 -0.1 63 9500 A2 99 109 Muphrid 2.7 2.7 9.6 5800 G0 6.4 562 4.1 3.5 13 6200 F7 3.2 1247 4.8 2.5 28 8100 A7 7.8 780 4.4 1.5 38 8100 A7 21 629 4.1 1.8 29 11000 A0 14 630 Alkalurops 4.1 2.9 18 7300 F0 5.6 1602 5.0 3.3 21 9500 A2 3.6 987 4.6 5.4 6.7 5200 G8 0.53 988 4.6 2.2 29 5000 K0 10 883 4.5 1.4 40 12000 B9 21 308 3.6 -0.1 56 4500 K3 94 884 4.5 3.3 17 6900 F2 3.8 885 4.5 3.4 16 6200 F7 3.3 563 4.1 -0.1 72 4200 K5 98 2044 5.1 3.1 26 5200 G8 4.6 2290 5.3 1.4 59 9500 A2 22 886 4.5 0.1 75 4600 K2 73 1248 4.8 4.7 91 4400 K4 82

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