These are discussions post and responses to two classmates.P
These are discussions post and responses to two classmates.Please make the initial post at least 250 words and the responses to classmates100 words. Please list all references that you may use.ASTRONOMY In this discussion activity, you will use whatyou have learned through the assigned readings on how stars end their lives asmain-sequence stars to investigate nearby stars for candidates for such fierydeaths. Before participating in the discussion:Â·Read 23.1-23.2Â·View Video: The death of a low-mass star (Links to an external site.)Linksto an external site. [Video file][2 min 22 sec]Â·View Video: The death of a massive star (Links to an external site.)Links to an external site.[Video file][4 min 19 sec]Now letâ€™s begin the discussion:What kinds of stars would you, as anastronomer sometime in the future, monitor if you wished to observe a supernovaexplosion from its very beginning?To helpanswer this question, consult the lists of the nearest and brightest stars,found in Appendix 4 of your textbook and on this webpage (Linksto an external site.)Links to an external site.,respectively.Which, if any, of these stars are possiblesupernova candidates? Explain. Compare your results with at least two of yourclassmates. Did the spectral-type of the stars they identified differ fromyours? Why?Remember that there are two types ofsupernova, Type IA and Type II. Choose one of these types for this activity.What is the difference between the types? What are the conditions necessary foreach to happen? The answers to these questions should guide you on your searchfor candidate stars.For full credit, you should explore at leastone resource besides your textbook. Be sure to cite references used.Joshua, Asan astronomer I would try and focus my efforts and monitor stars that are inthe red super-giant stage of their lives or the white dwarf stage. We would beable to narrow our search by limiting ourselves to monitor spectral the classesD, M, and K and ensure they are in the correct luminosity range to indicate asituation that is ripe for a potential supernova. A current star being observedas supernova candidate, Betelgeuse which sits in the constellation ofOrion is already in the M spectral class and is nearing the end of itslife. The interesting part of Betelgeuse is its relatively close toour system which would prove to be an awesome sight day and night(Sessions, 2019).Vincent,There aretwo types of supernova which are type IA and II. I believe that the Hadar willbecome a supernova type II. The major differences between type IA and II isthat type II supernova is about 5 times less luminous than type IA (OpenStax,2016, p. 850). Also type IA supernova ‘light output initially increasesand then slowly decreases over time’ (OpenStax, 2016, p. 850). Ibelieve that since the mass of the Hagar is 14.7 as greater than the Sun whenthe core collapses the fusion process will create an extremely powerfulexplosion.