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New Horizons

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  • Registered Users, Registered Users 2 Posts: 959 ✭✭✭ZeRoY


    Little 3X stack of Pluto using the latest New Horizon pics using Registax 6!

    19484015639_941bc88334_o_d.jpg

    Sources


  • Closed Accounts Posts: 4,029 ✭✭✭shedweller


    Top job! It really brings out the detail eh?!


  • Registered Users, Registered Users 2 Posts: 959 ✭✭✭ZeRoY


    shedweller wrote: »
    Top job! It really brings out the detail eh?!

    It sure did! I wish we had better res pictures but not for a long time, I understand the calibrated images wont be avail for at least 9 months to a year!


  • Registered Users, Registered Users 2 Posts: 2,708 ✭✭✭Curly Judge


    nhpf20150701_0312.svg

    Anyone see anything wrong with this official NASA graphic?


  • Registered Users, Registered Users 2 Posts: 18,321 ✭✭✭✭namloc1980


    nhpf20150701_0312.svg

    Anyone see anything wrong with this official NASA graphic?

    ?


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  • Closed Accounts Posts: 4,029 ✭✭✭shedweller


    Do i win a box of usa biscuits?


  • Registered Users, Registered Users 2 Posts: 13,080 ✭✭✭✭Maximus Alexander


    nhpf20150701_0312.svg

    Anyone see anything wrong with this official NASA graphic?

    They accidentally made a graphic for ants?


  • Registered Users, Registered Users 2 Posts: 11,174 ✭✭✭✭Captain Chaos



    Anyone see anything wrong with this official NASA graphic?

    Pluto's orbit should cut just inside Neptune's at that point shown but it doesn't. According to that graphic Pluto never comes closer to the sun than Neptune at any point in it's orbit which is wrong. Unless it does off plane axis that can't be seen at this angle but is possibly there.


  • Registered Users, Registered Users 2 Posts: 2,708 ✭✭✭Curly Judge


    Hint: what is one of the reasons the Pluto probe is travelling so fast?


  • Registered Users, Registered Users 2 Posts: 11,174 ✭✭✭✭Captain Chaos


    Hint: what is one of the reasons Pluto is travelling so fast?

    Because it almost at it's aphelion in it's orbit?


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  • Registered Users, Registered Users 2 Posts: 2,708 ✭✭✭Curly Judge


    Because it almost at it's aphelion in it's orbit?

    Sorry....I screwed up on post 160.
    Please read the edited version again


  • Registered Users, Registered Users 2 Posts: 13,080 ✭✭✭✭Maximus Alexander


    Sorry....I screwed up on post 160.
    Please read the edited version again

    Ah, are you saying that the line should intersect with Jupiter?

    I think Jupiter has moved since NH crossed its path. ;)


  • Registered Users, Registered Users 2 Posts: 1,630 ✭✭✭ps200306


    Pluto's orbit should cut just inside Neptune's at that point shown but it doesn't. According to that graphic Pluto never comes closer to the sun than Neptune at any point in it's orbit which is wrong. Unless it does off plane axis that can't be seen at this angle but is possibly there.
    Your last bit is right. Pluto's orbit is highly inclined to the ecliptic, so the angle we are looking at here is misleading. In fact, if you were to view it as a flat plane, and bearing in mind that the planets are orbiting the sun counter-clockwise as viewed from the celestial north pole (which you know this view is from, by looking at the direction that New Horizons orbits the Sun after leaving Earth) you would imagine that Pluto is only now heading for perihelion, whereas it passed it decades ago when it was multiple AU "above" the orbit of Neptune. An interesting factoid is that Pluto approaches Uranus closer than it ever does Neptune (about 17 AU), due to its distance above the ecliptic plane whenever it crosses Neptune's orbit.
    Because it [Pluto is] almost at it's aphelion in it's orbit?
    Wouldn't Pluto be moving fastest at perihelion?
    Hint: what is one of the reasons the Pluto probe is travelling so fast?
    Are you getting at the fact that New Horizons slingshotted around Jupiter, but its trajectory doesn't appear to come close to Jupiter in the graphic? Could that be explained by the fact that the graphic shows a snapshot in time as of now, so the planets have moved from the positions they were at when New Horizons crossed their orbits?

    (Doh! Max. Alexander got in seconds before me! :pac: )


  • Closed Accounts Posts: 4,029 ✭✭✭shedweller


    Did you lot have your coffee intravaenously this morning??!!


  • Registered Users, Registered Users 2 Posts: 9,520 ✭✭✭irishgeo


    Is the earth visible that far out if it turned its camera back towards the sun?


  • Registered Users, Registered Users 2 Posts: 1,630 ✭✭✭ps200306


    A subtler form of the Jupiter conspiracy is that the NH Jupiter flyby was nearly 5.5 years ago, which in turn is nearly half a Jupiter orbit. In the graphic, it doesn't look like Jupiter has moved anything close to half an orbit, but could be just a perspective thing.


  • Registered Users, Registered Users 2 Posts: 2,708 ✭✭✭Curly Judge


    Ah, are you saying that the line should intersect with Jupiter?

    I think Jupiter has moved since NH crossed its path. ;)

    For me the key word here is trajectory
    New Horizons crossed the orbit of Jupiter nearly eight years ago.
    I'm at a loss to know what the position of Jupiter today adds to our pool of information?


  • Closed Accounts Posts: 4,029 ✭✭✭shedweller


    87,000 miles to go!


  • Registered Users, Registered Users 2 Posts: 1,630 ✭✭✭ps200306


    ps200306 wrote: »
    A subtler form of the Jupiter conspiracy is that the NH Jupiter flyby was nearly 5.5 years ago, which in turn is nearly half a Jupiter orbit. In the graphic, it doesn't look like Jupiter has moved anything close to half an orbit, but could be just a perspective thing.
    For me the key word here is trajectory
    New Horizons crossed the orbit of Jupiter nearly eight years ago.
    I'm at a loss to know what the position of Jupiter today adds to our pool of information?

    Clearly I've forgotten how to subtract. :o
    Yep, it was 8.5 years ago, three quarters of a Jupiter orbit, and the orbit is counter clockwise so it looks just about right!
    My guess is whatever software produced the graphic puts in the positions of the planets, so it was easier to leave them in than take them out. :pac:


  • Registered Users, Registered Users 2 Posts: 2,708 ✭✭✭Curly Judge


    ps200306 wrote: »
    Clearly I've forgotten how to subtract. :o
    Yep, it was 8.5 years ago, three quarters of a Jupiter orbit, and the orbit is counter clockwise so it looks just about right!
    My guess is whatever software produced the graphic puts in the positions of the planets, so it was easier to leave them in than take them out. :pac:

    Not the end of the world, one way or the other.
    Just a little parlour quiz to pass the time while we await the main event.


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  • Closed Accounts Posts: 4,029 ✭✭✭shedweller


    According to the "eyes" program, the camera LORRI is looking at Charon now and it more than fills the viewfinder! 78,000 miles to go now and New Horizons is really moving about now!


  • Registered Users, Registered Users 2 Posts: 2,708 ✭✭✭Curly Judge


    _84258903_pluto_charon_976.jpg

    Courtesy of the BBC


  • Closed Accounts Posts: 4,029 ✭✭✭shedweller


    41,000 miles. LORRI, ALICE and RALPH are scanning Charon.


  • Closed Accounts Posts: 2,320 ✭✭✭Ace Attorney


    How close is charons orbit to pluto?


  • Registered Users, Registered Users 2 Posts: 2,708 ✭✭✭Curly Judge


    Paradoxically, this might be the least interesting time from an armchair observers point of view as the probe will be so busy absorbing and storing information that earth bound viewers will probably be left atthe back of the queue.
    Rightly, if perhaps annoyingly, so!
    It will take up to 16 months to get it all transmitted back to earth.


  • Registered Users, Registered Users 2 Posts: 11,174 ✭✭✭✭Captain Chaos


    No point in looking for new info as nothing will be sent back until midnight. It will take months for all the photos to be sent back.


  • Closed Accounts Posts: 4,029 ✭✭✭shedweller


    How close is charons orbit to pluto?
    https://en.wikipedia.org/wiki/Charon_%28moon%29
    17,500 km to the barycentre.


  • Closed Accounts Posts: 4,029 ✭✭✭shedweller


    Big turn towards Nix. 19,900 miles left. 36 mins. Lovin this!


  • Registered Users, Registered Users 2 Posts: 17,808 ✭✭✭✭bilston


    I'm no expert on these things but this is an astonishing achievement. To be taking detailed photos of a planetary bodies billions of kilometres away just blows the mind.


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  • Closed Accounts Posts: 4,029 ✭✭✭shedweller


    bilston wrote: »
    I'm no expert on these things but this is an astonishing achievement. To be taking detailed photos of a planetary bodies billions of kilometres away just blows the mind.
    It is amazing what we can do.


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