Consider these real data for three Cepheid variable stars in a…

Question Answered step-by-step Consider these real data for three Cepheid variable stars in a… Consider these real data for three Cepheid variable stars in a distant galaxy. These luminosities were calculated using the period-luminosity relationship discoveredy by Henrietta Swan Leavitt.(a) (b)• • •Calculate the distance to this galaxy using each of the 3 Cepheid variable stars, give the distance in both m and in parsecs.Do the 3 calculated distances agree? Based on your results, how uncertain is this measurement? (Remember that W means Watts, and remember how the brightness of an object drops off with distance – check your lecture notes) [3 points]Cepheid #1: luminosity = 3.3×1030 W, apparent brightness = 9.3×10-19 W/m2 Cepheid #2: luminosity = 1.1×1030 W, apparent brightness = 3.8×10-19 W/m2 Cepheid #3: luminosity = 2.5×1030 W, apparent brightness = 8.7×10-19 W/m2 Science Astronomy ASTR 101 Share QuestionEmailCopy link Comments (0)