Class/Section: starry Night Student Exercise-Answer Sheet (continues on back): S
ID: 3308818 • Letter: C
Question
Class/Section: starry Night Student Exercise-Answer Sheet (continues on back): Stars and the H-R Diagram . Luminosity and temperature of bright stars in Hercules: 2. Luminosity and temperature of nearby stars: Luminosity Temperature (K) Luminosity Temperature (K) 9008- 502s Star Sun HIP71683 5770 I Epsion Hercule ! 1 1.8 5715 Eta Hercuis Gamma Herculis ota Hercule HIP7 16811 .61 12015-S-15S5) 1928 Lambda Herculis 883 S3635 3.0 s 554 60 8 HIP54035 349 | 2 85 HIP165373513 o 17.5 0800 Mu Herculs Omicron Herculis Pi Herculis Pi Herculis HIP37279 HIP1088702.0 HIP439 1352 a2 62 2022 08 628 ho Herculisuk 32 8902 8413 8980 Sigma Herculis Tau Herculis 188 heta Hercule 321 383 Xi Hercuies Zeta Herculis 6161 5- suns unknow nExplanation / Answer
4. Most of the bright stars lie near the main sequence whereas in case of the nearby stars we can not make the same statement as in this case a lot of stars are away from the main sequence. While answering this problem the stars with unkown or uk luminosity have not been considered and have been neglected from the assumptions.
5. Nearby stars are more representative of "average" stars in our galaxy. The reason behind this is the average temperature and luminosity of the stars in this set as compared to their counterparts in bright stars. Most of the stars in our galaxy are yellow dwarf stars which are not very bright and the nearby stars fit this description quite perfectly.