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Questions and Answers
What is the Crab Nebula?
What is the Crab Nebula?
- A protostar collapsing into a brown dwarf
- A supernova remnant formed from an exploding star in 1054 (correct)
- A planetary nebula formed from a dying low-mass star
- A nebula where new stars are being born
What is a protostar?
What is a protostar?
- A collapsed gas cloud that may become a star
- A type of nebula where stars are born
- A star in its final stages of life
- A star that has not yet achieved nuclear fusion (correct)
What happens if a protostar runs out of material before achieving nuclear fusion?
What happens if a protostar runs out of material before achieving nuclear fusion?
- It will continue to collapse indefinitely
- It will become a brown dwarf (correct)
- It will become a neutron star
- It will become a black hole
Which of the following is NOT a characteristic of a protostar?
Which of the following is NOT a characteristic of a protostar?
What was the Crab Nebula formed from?
What was the Crab Nebula formed from?
Which of the following statements about protostars is true?
Which of the following statements about protostars is true?
What is the difference between a protostar and a brown dwarf?
What is the difference between a protostar and a brown dwarf?
What is the significance of the Crab Nebula?
What is the significance of the Crab Nebula?
What is the primary difference between a nebula and a protostar?
What is the primary difference between a nebula and a protostar?
What is the first step in forming a star?
What is the first step in forming a star?
What celestial event led to the formation of the Crab Nebula?
What celestial event led to the formation of the Crab Nebula?
What is the role of Chinese astronomers in the history of the Crab Nebula?
What is the role of Chinese astronomers in the history of the Crab Nebula?
What happens if a protostar does not become large enough to achieve nuclear fusion?
What happens if a protostar does not become large enough to achieve nuclear fusion?
What is the defining characteristic of a protostar?
What is the defining characteristic of a protostar?
What celestial event led to the formation of the Crab Nebula?
What celestial event led to the formation of the Crab Nebula?
What is the primary difference between a protostar and a brown dwarf?
What is the primary difference between a protostar and a brown dwarf?
What is the role of Chinese astronomers in the history of the Crab Nebula?
What is the role of Chinese astronomers in the history of the Crab Nebula?
Why might a protostar never become a star?
Why might a protostar never become a star?
What is a common fate for protostars that do not achieve nuclear fusion?
What is a common fate for protostars that do not achieve nuclear fusion?
What is the significant milestone in a protostar's development when it becomes a star?
What is the significant milestone in a protostar's development when it becomes a star?
What class of celestial objects is a brown dwarf placed between?
What class of celestial objects is a brown dwarf placed between?
What is the defining characteristic of protostars?
What is the defining characteristic of protostars?
What is the reason behind the formation of protostars?
What is the reason behind the formation of protostars?
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