PSU Astro 001 Unit 3 Exam | 50 Questions with 100% Correct Answers | Updated | Download to score A+

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A large luminosity star - ✔✔Emits more light than a low luminosity star If a red giant appears the same brightness as a red main sequence star, which one is further away? - ✔✔The red giant ... The heaviest nuclei of all are formed - ✔✔During a supernova explosion Hydrogen-2 + proton = ? - ✔✔Hydrogen-2 + proton = Helium-3 Why does the main sequence part of a star's life end? - ✔✔The hydrogen in the core is exhausted Many of the brightest 100 stars viewed from Earth are not on the main sequence (even though most stars are) because... - ✔✔The most luminous stars are giants and super giants that have already finished their main sequence lifetimes A 2 solar mass main sequence star is at the same distance as a 0.2 solar mass main sequence star. Which star appears brighter? - ✔✔The 2 solar mass main sequence star appears brighter The temp. of the photosphere of the Sun is closest to... - ✔✔6,000 kelvin [Show More]

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