ASTR 121 Final: ASTR 121 Final Exam Formula Sheet

• School: University of Maryland
• Department: Astronomy
• Course: ASTR 121
• Professor: Derek Richardson

Document Summary

M v = pgmr/r or mr = rv2/g f = c/ . E = hf z ( o s)/ s = (fs fo)/fo z = v/c (v c) L = 4 r2 t 4 d = 1/p, d in pc, p in arcsec m2 m1 = 2. 5 log10(f1/f2) m m = 5 log10(d/10 pc) 1. 0 1010(m/m ) 2. 5 yr v = h0d. 1 ly = 9. 461 1015 m = 6. 324 104 au. 1 pc = 3. 086 1016 m = 3. 262 ly = 2. 063 105 au. 1 yr = 365. 25 d/yr 24 h/d 60 min/h 60 s/min = 3. 15576 107 s. L = 3. 839 1026 w mh = 1. 674 10 27 kg. Boltzmann constant c = 2. 998 108 m s 1. G = 6. 673 10 11 m3 kg 1 s 2 h = 6. 626 10 34 m2 kg s 1. = 5. 670 10 8 w m 2 k 4 kb = 1. 381 10 23 j k 1.