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| | ASTRONOMY B PRACTICE EXAM |
 | | 60 The Sun is most like spectral type a) A b) B c) F d) G e) K. 61 The spectral lines of hydrogen are the strongest in stars whose effective temperatures are near a) 425, b) 2000, c) 9700, d) 22000, e) 40000 Kelvin. |
 | | It is a a) G2 V, b) M1 Ia, c) A1 VI, d) K3 III, e) N7 II star 68 Kruger 60 B has a V magnitude of 11.3 and a parallax of 0.25 arcsecond. |
 | | The absolute magnitude of Kruger 60 B is a) +13.68, b) +11.7, c) +13.32, d) +10.4, e) +13.00. |
| www.physics.uq.edu.au /people/ross/phys2080/practice.htm (2120 words) |
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