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    maragos's Avatar
    maragos Posts: 1, Reputation: 1
    New Member
     
    #1

    Aug 12, 2007, 03:19 AM
    Special relativity
    How long it takes a spaceship (proper time) to go to some planet 500 light years away from earth, if it moves with a speed 99.999% of the speed of light?
    maragos
    spacefire5458's Avatar
    spacefire5458 Posts: 84, Reputation: 1
    Junior Member
     
    #2

    Aug 12, 2007, 02:21 PM
    I not sure but I think it is 185998.14*2.932848*10^15.
    Hope this helps
    :)
    Estakhr's Avatar
    Estakhr Posts: 22, Reputation: 0
    New Member
     
    #3

    Apr 30, 2010, 10:11 PM

    TT=tt(1-BetaSquare)
    T=time for spaceship
    t=time for us500LY
    beta=speed parametr0.99999
    T=500*0.004472125LY
    T=2.236LY
    Estakhr's Avatar
    Estakhr Posts: 22, Reputation: 0
    New Member
     
    #4

    Nov 18, 2010, 05:54 AM
    time-space relativity
    τc=tc-x.x

    x.x=x+y+z=r

    v=r/t

    τ=t(1-v/c)=t(1-β)

    τ=t(1-β)^=t/γ

    t=τγ

    τ=time for spaceship

    t=time for us 500LY

    β(beta)=speed parametr0.99999

    γ(lorentz factor)=1/(1-β)^

    τ=500*0.004472125LY
    τ=2.236LY
    :-O

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