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  1. #1
    Senior Member
    Texas's Avatar

    Long way off - but got the pictures !

    https://petapixel.com/2019/01/03/the...-solar-system/

    How did they know a 21 mile long object was out there 4.1B miles away ?

    Then navigate near enough (18,000 miles) to photograph it ?

    And how many nano/femto watts of radio waves came back to earth with the picture ?


    › See More: Long way off - but got the pictures !
    D750, D100, Nikon 1 J5
    (Once owned: EL, F2AS, D50, D90, D200, D300s, and D7100)



  2. #2
    Senior Member
    Bikerbrent's Avatar

    Re: Long way off - but got the pictures !

    Well, if you are one of the flat earth bunch, these photos are all fakes, just like the moon landing!!
    Brent: Poway, CA
    D7200, D200, F100
    Tokina 12-24mm
    Nikon 18-200mm
    Tokina 28-70mm f2.6-2.8
    Nikon 80-200mm f2.8
    Sigma 150-600mm
    Nikon 50 AF f1.8
    Tokina 100mm f2.8 Macro
    Nikon SB800

  3. #3
    Senior Member
    desmobob's Avatar

    Re: Long way off - but got the pictures !

    The article I read the other day said the images would take a while to get here because the transmitter only had 15 watts of power.

    I don't have any knowledge of communications and electronics, but a fifteen-watt signal carrying photo info traveling over four billion miles? Wow!

    Stay sharp,
    Bob

  4. #4
    Senior Member
    Woodyg3's Avatar

    Re: Long way off - but got the pictures !

    I can't fathom how they do it, but it sure is cool.
    Woody Green

    Clear Eyes, Full Hearts, Can't Lose

    D500, D7200, D7100, D70





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