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  1. #1
    Mick's Avatar
    Mick Guest

    Default retrograde motion



    Isn't mars going to retrograde in motion as earth overtakes it in August?



  2. #2
    Mick's Avatar
    Mick Guest

    Default retrograde motion


    "bwhiting" <bwhiting@stargate.net> wrote in message
    news:3F44DEA6.3040503@stargate.net...

    Ok..why doesn't become stationary at opposition on Aug 27 when earth is
    parallel?



  3. #3
    Mike Simmons's Avatar
    Mike Simmons Guest

    Default retrograde motion

    Mick wrote:

    At opposition the Earth is passing by Mars so the red planet appears to
    be going "backwards". In fact, since we're on parallel paths the
    retrograde motion is maximized. And because it's closer to us then it
    seems to be backing up even faster than when the distance is greater.
    So Aug. 27 is roughly when it's in the middle of its retrograde loop and
    losing ground the fastest. Not until we're moving more in a line away
    from it rather than passing it by will it resume its apparent direct
    motion.

    Mike Simmons

  4. #4
    Howard Lester's Avatar
    Howard Lester Guest

    Default retrograde motion

    So, Claudius, have you forgotten to explain your epicycles?

    ;^)

    "Mike Simmons" wrote




 

 

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