WebAnswer: Use the equation for brightness: B = L/4 π D^ 2. Start with Luminosity: We know Star A is 3 times more luminous, that makes star A get 3 times brighter. Now go to distance. We know that Star A is 5 times closer. Closer is brighter. Since the distance is squared in the equation, that means. Star A is 5^2 = 25 times brighter. WebO and B stars only occur in the galactic. disk / disc. The Sun orbits the center of the galaxy about once every. 200,000,000 years. True or False: The center of the galaxy has been studied extensively using visible light. False. An astronomer named _______________ used globular clusters to locate the center of the galaxy. Shapley.
Stellar Classification National Schools
WebE) surface temperature. Answer: A. A star's luminosity is the. A) apparent brightness of the star in our sky. B) surface temperature of the star. C) lifetime of the star. D) total amount of energy that the star will radiate over its entire lifetime. E) total amount of energy that the star radiates each second. Answer: E. WebMar 13, 2024 · Prior to start Adobe Premiere Pro 2024 Free Download, ensure the availability of the below listed system specifications. Software Full Name: Adobe Premiere Pro 2024. Setup File Name: Adobe_Premiere_Pro_v23.2.0.69.rar. Setup Size: 8.9 GB. Setup Type: Offline Installer / Full Standalone Setup. Compatibility Mechanical: 64 Bit (x64) albertaferretti.com
Chapter 15 Flashcards Quizlet
WebStudy with Quizlet and memorize flashcards containing terms like Which of the following statements about star clusters are true?, Which of the following statements about a globular cluster is true? -All stars in the cluster are approximately at the same stage in evolution. -Most of the stars in the cluster are younger than 10 billion years old. -Most stars in the … WebStudy with Quizlet and memorize flashcards containing terms like In comparing first magnitude Deneb with second magnitude Polaris, we find that:, The motion of a star across the sky (perpendicular) to our line of sight) is called its, Why are astronomers much more interested in the luminosity of a star than its apparent brightness? and more. alberta ferretti fall winter 2023 2024