• BossDj@lemm.ee
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    8 months ago

    Image from 2022 using infrared imaging with the goal of spotting clouds on Titan. The white spot that looks like a bubble reflection on the upper right of the image (1 o’clock?) is a cloud.

    This is not true color, but colors assigned to different the wavelengths that we otherwise cannot see. Visible light would not have allowed imaging deep enough into the atmosphere to see clouds.

      • BossDj@lemm.ee
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        8 months ago

        Nope! They got to see two cloud actually! A second set of images exists from Keck Observatory with the other cloud.

        The thick atmosphere isn’t cloudy, just dense with methane.

        I’m not 100%, but the clouds are exciting I think because they demonstrate seasonal changes.

  • Doll_Tow_Jet-ski@kbin.social
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    8 months ago

    A clearer picture, for those interested:

    http://annesastronomynews.com/wp-content/uploads/2012/02/Titan.jpg

    Source

    From the source:

    Titan is the only object other than Earth where liquid hydrocarbon lakes and seas have actually been found (by Cassini) in its polar regions – in abundance in the north polar region and at least one of approximately 20,000 km2, called Ontario Lacus, on its south pole. Just recently, there have also been long-standing methane lakes, or puddles, in Titan’s “tropics” discovered.

  • Godric@lemmy.world
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    8 months ago

    Well, are they gonna let it out before Saturn notices its missing??? Saturn’s a big planet, I hope it doesn’t notice

    • zaphod
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      8 months ago

      In infrared. Titan basically looks like a brownish grey blob to the naked eye due to its incredibly dense atmosphere.

      • 🇰 🌀 🇱 🇦 🇳 🇦 🇰 ℹ️@yiffit.net
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        8 months ago

        Knowing it’s just color shifted makes me wonder if that white band in the upper right that looks like a reflection off the atmosphere is actually a reflection off the atmosphere. And also what method of color shifting was used. Are the colors representative of anything or did they just pick what made for the best photo?

        • zaphod
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          8 months ago

          They basically remap wavelengths, so yes, absolutely those would be representative of real features, either in the atmosphere or on the ground.

          That said, absolutely, sometimes there’s a bit of artistic license in how the wavelengths are mapped.

          Edit: the space.com article on the image describes some of the physical features depicted:

          https://www.space.com/james-webb-space-telescope-saturn-moon-titan

  • dan1101@lemm.ee
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    8 months ago

    Titan is about 40% the size of the planet Earth, and is the 10th largest object in the solar system.

    • elephantium@lemmy.world
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      8 months ago

      Going from memory here…

      Sun, Jupiter, Saturn, Uranus/Neptune (don’t recall which order those two belong in), Earth, Venus, Mars, Mercury, then finally Titan.

      I’ll look it up in a moment, but I wanted to post off the top of my head.

    • kinsnik@lemmy.world
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      8 months ago

      yeah, i believe that JWST can’t see visible spectrum at all, so this must be infrared light

  • HootinNHollerin@lemmy.world
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    8 months ago

    Very blurry for a powerful telescope. Wonder if it’s because moon is moving fast relative to close telescope so the effective shutter speed needs to be relatively high?

  • unreasonabro@lemmy.world
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    8 months ago

    odd that it can pick up light from the universe’s placenta but can’t get a good shot of that kid down the street

    • rappo@lemmy.world
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      8 months ago

      remember that JWST doesn’t do visible spectrum and, regardless, it’s specialized for faint distant objects. From JWST’s perspective, Titan emits a lot of light. It’s kind of like using a telephoto lens to take a picture of your foot.

      • MeanEYE@lemmy.world
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        8 months ago

        People in general don’t understand focal length and spectrums. It’s just oooh 400x zoom, fancy, let’s see atoms.

  • corsicanguppy
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    8 months ago

    The bad English makes it read as if there are other, larger, moons of Saturn, but the JWST hasn’t captured them yet.

  • eskimofry@lemmy.world
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    8 months ago

    People saying this is blurry… have you considered: every other image is stitched, edited, overlaid and colorized, whereas this is a picture that’s actually quite close to that from the camera of JWST.

    • Zron@lemmy.world
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      8 months ago

      JWST doesn’t see visible light, so it’s blurry and false color.

      But JWST also wasn’t designed to take pictures of moons in our solar system, it was designed to take picture of the cosmic background and find stars with planets around them.

      This is like trying to use a telescope to look at your globe across the living room, it’s going to be blurry because it wasn’t designed for that.