• driving_crooner@lemmy.eco.br
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    4 hours ago

    So conditioned that NDT is talking bullshit and people dunking on him that I had to read it a couple of times to understand it.

  • rumba@lemmy.zip
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    6 hours ago

    From that picture, it looks like you’d be on mercury and look up, see nothing but sun, But realistically it’s 60% closer than earth

    looks kinda like this from the surface

    • Mr_Dr_Oink@lemmy.world
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      5 hours ago

      Im struggling to parse this. The picture of the sun with the tiny dot when compared with the artists impression you posted. It just wont click together. How can the sun appear so big from the telescope compared to mercury but be so small from mercury’s perspective?

      Edit. Actually i think it clicked. Mercury is so far from us and so smalkl that it appears like a small dot through that telescope even when zoomed in enough to see the sun that closley. Its actually still really far from the sun but our perspective and that flat picture makes it seem like its about to be consumed by the sun. If it was off to the side the distance would be more clear.

      So more like this

      S—‐-------------------------------M--------------------------------------V----------------------------------E

      Than

      S—M‐---------------------------------------------------------------------V----------------------------------E

      • rumba@lemmy.zip
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        2 hours ago

        Yep, zoom and narrow aperture really messes with perspective.

        It’s kind of opposite of the tilt shift photos that make real life things look fake.

  • ALoafOfBread@lemmy.ml
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    14 hours ago

    Too autistic for this. Why would it be unsettling? Mercury is much smaller than the sun. If it was suddenly bigger in proportion to the sun, then I’d be unsettled.

    • Zess@lemmy.world
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      5 hours ago

      Right, I feel like no astronomer should be unsettled by just a picture of our solar system.

    • rudyharrelson@lemmy.radio
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      14 hours ago

      It doesn’t exactly unsettle me, but pondering the mind-boggling scale of celestial bodies and the cosmos can certainly be… humbling, I guess?

      I had a co-worker a while back who couldn’t talk about the great scale of the universe cause he’d get freaked out. It didn’t come up much, but when it did, he’d be like, “Please stop, it’s stressing me out” so we’d change the subject.

    • fishos@lemmy.world
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      14 hours ago

      Less about size and more about size and relative distance. Think about being on Mercury and the entire sky is blazing sun - and yet it survives.

      • CitizenKong@lemmy.world
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        10 hours ago

        I mean, nothing on Mercury survives. At night it’s -170 degrees Celsius and +430 degrees at day.

        • Lyrl@lemm.ee
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          3 hours ago

          There was a time people thought Mercury would have some “twilight” acreage that was always at habitable temperatures. Then we learned that, while yes it is tidally locked with the Sun, it is locked in a 3:2 resonance so it does rotate with respect to the sun, and everywhere gets both scorched and frozen to uninhabitability.

      • BigBenis@lemmy.world
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        11 hours ago

        on Mercury and the entire sky is blazing sun

        I’ve never thought about this and holy shit

        • stebo@lemmy.dbzer0.com
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          10 hours ago

          That’s not the case though. Sure the sun would seem bigger on mercury but it’s not gonna fill the entire sky.

          Edit: According to NASA the sun would appear 3 times bigger and 7 times brighter on mercury.

    • LaLuzDelSol@lemmy.world
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      14 hours ago

      It’s very hard to convey the size of the sun in a photo. On earth, it isn’t bigger than the moon. I don’t think I’ve ever seen, in a real photo, just how massive the sun is. I absolutely dwarfs a planet, which is kind of chilling. I’ve never seen a photo that shows anything further away from the camera than a planet AND that much bigger.

  • Justin@lemmy.jlh.name
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    16 hours ago

    This small circle is the sun, absolutely dwarfed by the earth taking up the rest of the frame. Definitely unsettling.

  • thespcicifcocean@lemmy.world
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    12 hours ago

    This reminds me of that part of that space opera I read where there was a nomadic colony on mercury which needed to always be moving at exactly the right speed to stay on the dark side of the terminator.

    • BalderSion@real.lemmy.fan
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      12 hours ago

      Wow. I was in middle school and had to do a creative writing assignment, and I wrote a science fiction short story set in a colony on that boundary of Mercury. I thought Mercury was tidal locked. I was praised for my creativity.

      I was today years old when I found that Mercury is not tidal locked.

      • Lyrl@lemm.ee
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        3 hours ago

        The 3:2 resonance Klear references is considered a type of tidal locking.

      • Klear@lemmy.world
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        5 hours ago

        Same here. I was so going to ackchyually that guy, but I did a quick check before and turns out there is a day/night cycle.

        Apparently one Mercury day takes exactly two Mercury years due to some fuckery involving “3:2 spin-orbit resonance” which is something I’m too drunk to comprehend right now.

        Gonna be an interesting wikipedia binge at work tomorrow tho

    • Weirdfish@lemmy.world
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      12 hours ago

      That was in the Red / Green / Blue mars trilogy, one of my favorites. Though I think I’ve seen the concept in other works as well.

      Basically the temp difference between day / night caused contraction of the rail tracks, pushing the whole city forward so it was always just ahead of dawn.

      • dubyakay@lemmy.ca
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        9 hours ago

        The nomadic colony got expanded on in KSR’s novel 2312. I don’t actually remember much about it in the Mars Trilogy.

        But I’ve seen the concept before in an old EU Star Wars novel, one of the Solo books maybe, where Lando was operating something similar as his new venture.

        And before that maybe mentioned by Sagan. And before that…

          • dubyakay@lemmy.ca
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            5 hours ago

            Adjacent, probably. Very similar, and seems to purposefully be set a hundred years after Blue Mars ends (2212).

            But it starts and ends on Mercury after a voyage through the solar system, not spending much story time on Mars.

  • Juice@midwest.social
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    14 hours ago

    I guess because of perspective, Mercury being millions of miles closer to the camera than it is to the sun, the actual proportions would have the planet being much smaller by comparison

    • nexguy@lemmy.world
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      13 hours ago

      Mercury’s apparent size in the sky when close to us is about twice the size as when mercury is in the other side of the sun from us. So mercury would appear about 75% the size it is in this photo of it were next to the sun (so about the same distance away as the sun is).