om/courses/62709/discussion topics/1231156?module_item_id=4649863 smic Evolution-831 Discussions > Discussion Week 10 Stars and Protostars Object Spectral Class Absolute Magnitude V K6 W A4 X G7 Y Z M1 09 +6 -4 +2 +3 -6 Search this course 1. Which objects (V, W, X, Y, Z) are protostars? 2. Which protostar(s) will form a high mass star? That means which one or more will become O, B, or A main sequence stars. 3. Which protostar will take the longest time to become a star? 4. The Luminosity of both a star and a protostar in the H-R D depends on their Surface Temperature and Radius. If you like equations, it looks like this: L=4RT That mean radius R2 In this question, you will decide how luminosity and temperature affect the size. The two sentences from the Week 3 Math Shortcut will help with this. In the H-R Diagram, compare object V and object Y. a. Which object has the bigger temperature. V or Y? b. Which object has the bigger luminosity, V or Y? c. Based on your answers to a and b, which object has the bigger radius? d. Is your answer what you expected based on what you learned about how stars formed in the Content Slides? Why or why not? Which Content Slide tells you this? 5. Which image in the Content Slides this week was your favorite? Let me know which slide number your choice is so I can find it easily. Tell us why you liked it in at least two full sentences. X PART II: Peer Review Due Sunday at 10 pm. You will be assigned one student's post to read. Please kindly and respectfully comment on their answer to question 5 (and anything else that intrigues you) in at least four full thoughtful sentences. Reflect on the ideas shared by your peer and provide a reply that offers helpful guidance or supportive feedback. You can view peer review notifications in Canvas in the Recent Activity Stream, the To Do list, and from the individual discussion page. Once peer reviews are assigned, you can also be notified according to your Canvas notification preferences. Click on "Review Now." To complete the peer review you must review the student's discussion reply and add your comment in the comment sidebar. Remember, the rubric mentioned below is for you to see how to be successful on an assignment and for me to assess your work; students cannot use it to grade anyone. Peer reviews are not for giving grades to the students. Once your student for peer review is assigned, the notification you receive allows you to access them to leave your comments. I am looking for gentle, guiding advice, questions, appreciation and other < Previous Next▸ 5:53 PM om/courses/62709/discussion topics/1231156?module_item_id=4649863 smic Evolution-831 Discussions > Discussion Week 10 Stars and Protostars Object Spectral Class Absolute Magnitude V K6 W A4 X G7 Y Z M1 09 +6 -4 +2 +3 -6 Search this course 1. Which objects (V, W, X, Y, Z) are protostars? 2. Which protostar(s) will form a high mass star? That means which one or more will become O, B, or A main sequence stars. 3. Which protostar will take the longest time to become a star? 4. The Luminosity of both a star and a protostar in the H-R D depends on their Surface Temperature and Radius. If you like equations, it looks like this: L=4RT That mean radius R2 In this question, you will decide how luminosity and temperature affect the size. The two sentences from the Week 3 Math Shortcut will help with this. In the H-R Diagram, compare object V and object Y. a. Which object has the bigger temperature. V or Y? b. Which object has the bigger luminosity, V or Y? c. Based on your answers to a and b, which object has the bigger radius? d. Is your answer what you expected based on what you learned about how stars formed in the Content Slides? Why or why not? Which Content Slide tells you this? 5. Which image in the Content Slides this week was your favorite? Let me know which slide number your choice is so I can find it easily. Tell us why you liked it in at least two full sentences. X PART II: Peer Review Due Sunday at 10 pm. You will be assigned one student's post to read. Please kindly and respectfully comment on their answer to question 5 (and anything else that intrigues you) in at least four full thoughtful sentences. Reflect on the ideas shared by your peer and provide a reply that offers helpful guidance or supportive feedback. You can view peer review notifications in Canvas in the Recent Activity Stream, the To Do list, and from the individual discussion page. Once peer reviews are assigned, you can also be notified according to your Canvas notification preferences. Click on "Review Now." To complete the peer review you must review the student's discussion reply and add your comment in the comment sidebar. Remember, the rubric mentioned below is for you to see how to be successful on an assignment and for me to assess your work; students cannot use it to grade anyone. Peer reviews are not for giving grades to the students. Once your student for peer review is assigned, the notification you receive allows you to access them to leave your comments. I am looking for gentle, guiding advice, questions, appreciation and other < Previous Next▸ 5:53 PM