Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    2
    ReputationRep:
    Hi,
    I really have no idea what happens to a star after the main sequence period in order for it to become a black dwarf. I don't even know what the main sequence is?
    If some one knows please could they help me
    Thank you


    Posted from TSR Mobile
    • Community Assistant
    Offline

    21
    ReputationRep:
    Community Assistant
    Main sequence is the part of a Star's lifespan where it spends the majority of its lifespan and is most stable. It ends when it runs out of hydrogen in its core. The steps towards a black dwarf is this: main sequence > red giant > white dwarf > black dwarf.
    • Aston Villa FC Supporter
    Offline

    3
    ReputationRep:
    Aston Villa FC Supporter
    (Original post by zarrii)
    Hi,
    I really have no idea what happens to a star after the main sequence period in order for it to become a black dwarf. I don't even know what the main sequence is?
    If some one knows please could they help me
    Thank you


    Posted from TSR Mobile
    After main sequence. it becomes a red giant (like the sun will be)

    Then it sheds its outer layers in a nebula, with a white dwarf left over.

    This white dwarf then cools down to become a black dwarf
    • Thread Starter
    Offline

    2
    ReputationRep:
    (Original post by Vikingninja)
    Main sequence is the part of a Star's lifespan where it spends the majority of its lifespan and is most stable. It ends when it runs out of hydrogen in its core. The steps towards a black dwarf is this: main sequence > red giant > white dwarf > black dwarf.
    Thank you so much!!


    Posted from TSR Mobile
    • Thread Starter
    Offline

    2
    ReputationRep:
    (Original post by Kyx)
    After main sequence. it becomes a red giant (like the sun will be)

    Then it sheds its outer layers in a nebula, with a white dwarf left over.

    This white dwarf then cools down to become a black dwarf
    Thank you very much but what is a nebula?


    Posted from TSR Mobile
    • Community Assistant
    Offline

    21
    ReputationRep:
    Community Assistant
    (Original post by zarrii)
    Thank you very much but what is a nebula?


    Posted from TSR Mobile
    Cloud of dust and gas in space.
    • Aston Villa FC Supporter
    Offline

    3
    ReputationRep:
    Aston Villa FC Supporter
    (Original post by zarrii)
    Thank you very much but what is a nebula?


    Posted from TSR Mobile
    A cloud of gas and dust.

    Such as the 'Eagle Nebula' or the 'Horsehead nebula' or the 'Crab nebula' or the 'Orion nebula' or the 'Cat's eye nebula' (to name just a few, if you want to google images of them )
    • Thread Starter
    Offline

    2
    ReputationRep:
    (Original post by Vikingninja)
    Cloud of dust and gas in space.
    Thank you


    Posted from TSR Mobile
    • Thread Starter
    Offline

    2
    ReputationRep:
    (Original post by Kyx)
    A cloud of gas and dust.

    Such as the 'Eagle Nebula' or the 'Horsehead nebula' or the 'Crab nebula' or the 'Orion nebula' or the 'Cat's eye nebula' (to name just a few, if you want to google images of them )
    Thank you :*


    Posted from TSR Mobile
    • Aston Villa FC Supporter
    Offline

    3
    ReputationRep:
    Aston Villa FC Supporter
    (Original post by zarrii)
    Thank you :*


    Posted from TSR Mobile
    np
    • Aston Villa FC Supporter
    Offline

    3
    ReputationRep:
    Aston Villa FC Supporter
    More specifically, it will be a planetary nebula

    It has nothing to do with planets, though
    • Thread Starter
    Offline

    2
    ReputationRep:
    (Original post by Kyx)
    More specifically, it will be a planetary nebula

    It has nothing to do with planets, though
    Your amazing thank you so much for your help!!!!! Xxxx


    Posted from TSR Mobile
    • Aston Villa FC Supporter
    Offline

    3
    ReputationRep:
    Aston Villa FC Supporter
    (Original post by zarrii)
    Your amazing thank you so much for your help!!!!! Xxxx


    Posted from TSR Mobile
    np
    If you need any more help, just PM me

    or ou can talk to me here http://socratic.org/users/kyx

    • Community Assistant
    Offline

    21
    ReputationRep:
    Community Assistant
    To add to the phase of going from a white to a black dwarf it just cools down over time. The white dwarf has no nuclear reactions anymore in it but because space is a vacuum it takes ages to cool down. Not sure what detail you need to include with the main sequence going into a red giant and then into a white dwarf for GCSE but it gets more in depth at A level.
    • Thread Starter
    Offline

    2
    ReputationRep:
    (Original post by Vikingninja)
    To add to the phase of going from a white to a black dwarf it just cools down over time. The white dwarf has no nuclear reactions anymore in it but because space is a vacuum it takes ages to cool down. Not sure what detail you need to include with the main sequence going into a red giant and then into a white dwarf for GCSE but it gets more in depth at A level.
    Thank you for all your help


    Posted from TSR Mobile
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Have you ever participated in a Secret Santa?
    Useful resources
    AtCTs

    Ask the Community Team

    Got a question about the site content or our moderation? Ask here.

    Welcome Lounge

    Welcome Lounge

    We're a friendly bunch. Post here if you're new to TSR.

    Groups associated with this forum:

    View associated groups
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Quick reply
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.