When in the vacuum of space, how do astronauts dictate up from down? ?

Like if there’s a star worth studying, how would we direct a drone towards said star? Is there a north south east and west in space? How are astronauts not constantly disoriented?

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  • YKhan
    Lv 7
    1 month ago

    If they are in low-Earth orbit, they use Earth-based astronomical coordinate systems, such as ascensions, inclination, etc.

    If they are travelling through deep space in the solar system, then they would be using constellations as reference. If they are in the far future and travelling through interstellar space, who knows what they would use, as that isn't a thing yet?

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  • 1 month ago

    There is no up or down in space. Astronauts probably refer to a direction by saying "towards to sun" or "towards Earth" . Stars and planets have coordinates using right ascension and declination.

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  • 2 months ago

    Astronaughts do not dictate. They don't determine up and down. They are in frreefall. The ISS and a capsule have an informal coordinate system that the astronauts understand, or they each have their own subjective personal coordinate system for the ISS or space capsule. Up is away from the surface of a celestial body and down is toed the surface e or center of a celestial body.

    Your may have an internal coordinate system for your house, apartment, apartment complex or neighborhood. Citied can have unique coordinate systems. Greater New Orleans doesnt have north, south east and west. The directions are to or from the river (Mississippi), to or from the lake (Pontchartrain) uptown /upriver and downtown today Canal St. If cross canal St you are still going downtown until you drop off into the industrial canal cone back up in New Orleans East and drop off into lake Borgne which is more of a bay than a lake..

    Greater Oklahoma Cit is unique too.

    Astronauts do not dictate up and down.

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  • Nyx
    Lv 7
    2 months ago

    Spatial coordinates are based on a fixed origin point. So in the case of a star, planet, or other object those coordinates are listed as Right Acesention, and Declination - based from Earth.

    https://askdruniverse.wsu.edu/2017/10/11/in-space-...

    http://astronomy.swin.edu.au/cosmos/C/Celestial+Co...

    Or, if you want to get really fancy, you use a galactic coordinate system.

    http://astronomy.swin.edu.au/cosmos/G/Galactic+Coo...

    Celestial mechanics also has several other things that are used.

    https://farside.ph.utexas.edu/teaching/celestial/C...

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  • 2 months ago

    towards the pull of gravity is down. against it is up. so in space above earth... down would be anything pulling you towards earth adn up would be any movement away fro earth

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  • 2 months ago

    In the confines of earth, we use a terrestrial coordinate system of longitude and latitude. Dealing with space, this gets expanded to a 3 dimensional system based on the ecliptic, Known as the celestial coordinate system. The declination, is the degrees north or south, and the right ascension  the number of degrees from a zero that goes to the very center of the galaxy. Up, usually defines 90* north, that also happens to be near the direction of earth axis pointing to Polaris. The 3rd dimension is the distance or magnitude of this pointer.

    Mainly used to navigate and know exact location anywhere in space.

    Say on board the ISS, UP it what ever the crafts orientation is. Except for being weightless and not using gravity for reference, up is like your room, so not like disorientation.  This is how:

    https://en.wikipedia.org/wiki/Celestial_coordinate...

    You want to find Andromeda galaxy, here is where you look:

    RA 0h 42m 44s | Dec +41° 16′ 9″

    2.4 million light years distance, now you know exactly where it is relative to earth.

    > Not to confuse, but the solar system has its coordinate system, as does the galaxy. They all correlate together. the galactic center IE: is 0*/0H:0M:0S

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    • CarolOklaNola
      Lv 7
      1 month agoReport

      has moved east not quite one whole constellation in 5000 years. The age of Aquarius doesnt start until Some time in the 2300s. 

      This us where your quick scanning of articles backfires so you post misinformation online destroying your own online credibility. 

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  • jehen
    Lv 7
    2 months ago

    Up is away from the earth, down is toward the earth - at least in LEO

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  • Mark
    Lv 7
    2 months ago

    "North" is generally the galactic centre.  "South" is AWAY from the galaxy.

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    • Morningfox
      Lv 7
      1 month agoReport

      Astronauts and space probes don't use galactic coordinates. And besides that, galactic coordinates are in terms of X, Y, and Z. We don't call them "north" or "east".

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