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NASA’s Parker Solar Probe delayed to Sunday

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  • 11-08-2018 7:03pm
    #1
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 91,400 Mod ✭✭✭✭


    d4h_scrub1-678x381.jpeg

    The rocket’s launch with NASA’s Parker Solar Probe has been rescheduled for Sunday at 3:31 a.m. EDT (0731 GMT).

    Europe will be sending up a solar probe in a few years http://sci.esa.int/solar-orbiter/


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    #2
    Poulgorm
    Registered Users Posts: 783 ✭✭✭Poulgorm


    This solar probe will travel at 430,000 miles per hour. Why so fast? And how do they achieve that speed?


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    #3
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 91,400 Mod ✭✭✭✭Capt'n Midnight


    Poulgorm wrote: »
    This solar probe will travel at 430,000 miles per hour. Why so fast? And how do they achieve that speed?
    The Moon takes about a month per orbit around the earth. Geosynch satellites take a day and the ISS in low Earth orbit takes an hour and a half. The closer in you are the faster you orbit.

    That close to the Sun, and that deep in it's gravity well you travel very fast.
    Eventually up to 692,000 km/h.

    It's not a circular orbit


    The probe weighs 555Kg, a little over half a tonne.
    The Delta IV Heavy launcher was about 733 tonnes.
    You'll pick up a fair lick of speed with that sort of ratio.


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    #4
    dxhound2005
    Registered Users Posts: 20,975 ✭✭✭✭dxhound2005


    My name has gone to the Sun.

    https://www.boards.ie/vbulletin/showthread.php?t=2057858517


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