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Thread: Where is Voyager 2

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    TonyC is offline Wizard Silver Subscriber
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    Where is Voyager 2

    Hi All,

    With Voyager 2 being in the news at the moment, got me wondering where it is.

    NASA has a neat web site that let's you spin it around and see the solar system in the background, it gives a good picture of how far away it is, but how do you define "where" it is, when at 20 billion km away, it has no reference point/direction to earth, or even our solar system.

    I assume there is a system to say "where" things in space are?

    Tony

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    BradC is offline Super Moderator
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    I always went with :
    - Low Earth Orbit
    - Near the moon
    - Somewhere around Pluto
    - Really, Really far away. Like much further than the corner shop.

    It's an interesting question. How would you assign a coordinate system to a theoretically continuously expanding space.
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    TonyC is offline Wizard Silver Subscriber
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    Quote Originally Posted by BradC View Post
    I always went with :
    - Low Earth Orbit
    - Near the moon
    - Somewhere around Pluto
    - Really, Really far away. Like much further than the corner shop.

    It's an interesting question. How would you assign a coordinate system to a theoretically continuously expanding space.
    The first three I can get my head around.
    The fourth sounds like a quote from The Hitch Hikers Guide 😁

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    Trying to get home from the Delta Quadrant?
    ​JayTee

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    BradC is offline Super Moderator
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    Quote Originally Posted by TonyC View Post
    The first three I can get my head around.
    The fourth sounds like a quote from The Hitch Hikers Guide 😁
    A quote? I don't think so. If it was a quote I'd have said something like “Space,” it says, “is big. Really big. You just won't believe how vastly, hugely, mindbogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space.”

    If you'd said perhaps "inspired by" or "loosely resembled" then perhaps I may agree. Between Spike Milligan and Douglas Adams I shamelessly pillage and paraphrase. They're both dead, so I fear no lawsuits.
    MY08 D3 - The Antichrist - "Permagrimace". Turn the key and play the "will it get me home again" lottery.

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    Quote Originally Posted by TonyC View Post
    Hi All,

    With Voyager 2 being in the news at the moment, got me wondering where it is.

    NASA has a neat web site that let's you spin it around and see the solar system in the background, it gives a good picture of how far away it is, but how do you define "where" it is, when at 20 billion km away, it has no reference point/direction to earth, or even our solar system.

    I assume there is a system to say "where" things in space are?

    Tony
    Sorry Tony, can't help you, I haven't got it.
    Quote Originally Posted by BradC View Post
    I always went with :
    - Low Earth Orbit
    - Near the moon
    - Somewhere around Pluto
    - Really, Really far away. Like much further than the corner shop.

    It's an interesting question. How would you assign a coordinate system to a theoretically continuously expanding space.
    Three dimensional co-ords at that. Clearly not with a Navman, it struggles with earthbound two dimensions.
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    Quote Originally Posted by V8Ian View Post
    Three dimensional co-ords at that.
    Four. Time, as in 'by the time you've got there it will. be somewhere else'.
    ​JayTee

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    One thing is for certain, you need a big pair of ears to hear from that craft. You guys have one of them huge dishes sitting around somewhere on the continent that they use to actually be able to pick that thing up!

    -P

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    Quote Originally Posted by prelude;[URL="tel:3200198"
    3200198[/URL]]One thing is for certain, you need a big pair of ears to hear from that craft. You guys have one of them huge dishes sitting around somewhere on the continent that they use to actually be able to pick that thing up!

    -P
    They even made a movie about it….. well, sort of.
    The Dish (2000) - IMDb
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    JDNSW is offline RoverLord Silver Subscriber
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    I think what you are after is this :-
    The galactic coordinate system is a celestial coordinate system in spherical coordinates, with the Sun as its center, the primary direction aligned with the approximate center of the Milky Way Galaxy, and the fundamental plane parallel to an approximation of the galactic plane but offset to its north. It uses the right-handed convention, meaning that coordinates are positive toward the north and toward the east in the fundamental plane.[1]

    https://en.wikipedia.org/wiki/Galact...rdinate_system
    John

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