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#mimas — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #mimas, aggregated by home.social.

  1. Oblate Mimas

    NASA Cassini spacecraft reveals the cratered surface of Mimas, a moon whose shape is flattened at the poles.

    More: images.nasa.gov/details/PIA116
    Credit: NASA/JPL/Space Science Institute

    #mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics

  2. Mimas Polar Maps - June 2012

    The northern and southern hemispheres of Saturn moon Mimas are seen in these polar stereographic maps, mosaicked from the best-available NASA Cassini and Voyager images.

    More: images.nasa.gov/details/PIA149
    Credit: NASA/JPL-Caltech/Space Science Institute

    #mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics

  3. Farewell to Mimas

    In its season of "lasts," NASA's Cassini spacecraft made its final close approach to Saturn's moon Mimas on January 30, 2017. At closest approach, Cassini passed 25,620 miles (41,230 kilometers) from Mimas. All future observations of Mimas will be from more than twice this distance. This mosaic is one of ...

    More: images.nasa.gov/details/PIA172
    Credit: NASA/JPL-Caltech/Space Science Institute

    #mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics

  4. Farewell to Mimas

    In its season of "lasts," NASA's Cassini spacecraft made its final close approach to Saturn's moon Mimas on January 30, 2017. At closest approach, Cassini passed 25,620 miles (41,230 kilometers) from Mimas. All future observations of Mimas will be from more than twice this distance. This mosaic is one of ...

    More: images.nasa.gov/details/PIA172
    Credit: NASA/JPL-Caltech/Space Science Institute

    #mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics

  5. Streaked Craters in False-Color

    A false-color view of Saturn moon Mimas from NASA Cassini spacecraft accentuates terrain-dependent color differences and shows dark streaks running down the sides of some of the craters on the region of the moon that leads in its orbit around Saturn.

    More: images.nasa.gov/details/PIA125
    Credit: NASA/JPL/Space Science Institute

    #mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics

  6. Mimas Mountain

    Shadows cast across Mimas' defining feature, Herschel Crater, provide an indication of the size of the crater's towering walls and central peak. Named after the icy moon's discoverer, astronomer William Herschel, the crater stretches 86 miles (139 kilometers) wide -- almost one-third of the diameter of Mimas...

    More: images.nasa.gov/details/PIA205
    Credit: NASA/JPL-Caltech/Space Science Institute

    #mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics

  7. Dot Against the Dark

    As if trying to get our attention, Mimas is positioned against the shadow of Saturn's rings, bright on dark. As we near summer in Saturn's northern hemisphere, the rings cast ever larger shadows on the planet. With a reflectivity of about 96 percent, Mimas (246 miles, or 396 kilometers across) appears ...

    More: images.nasa.gov/details/PIA182
    Credit: NASA/JPL-Caltech/Space Science Institute

    #mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics

  8. Dot Against the Dark

    As if trying to get our attention, Mimas is positioned against the shadow of Saturn's rings, bright on dark. As we near summer in Saturn's northern hemisphere, the rings cast ever larger shadows on the planet. With a reflectivity of about 96 percent, Mimas (246 miles, or 396 kilometers across) appears ...

    More: images.nasa.gov/details/PIA182
    Credit: NASA/JPL-Caltech/Space Science Institute

    #mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics

  9. Map of Mimas - February 2010

    This global map of Saturn moon Mimas was created using images taken during NASA Cassini spacecraft flybys, with NASA Voyager images filling in the gaps in Cassini coverage.

    More: images.nasa.gov/details/PIA127
    Credit: NASA/JPL/Space Science Institute

    #mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics

  10. Multicolor Mimas

    This extreme false-color view of Mimas shows color variation across the moon surface

    More: images.nasa.gov/details/PIA088
    Credit: NASA/JPL/Space Science Institute

    #mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics

  11. Farewell to Mimas

    In its season of "lasts," NASA's Cassini spacecraft made its final close approach to Saturn's moon Mimas on January 30, 2017. At closest approach, Cassini passed 25,620 miles (41,230 kilometers) from Mimas. All future observations of Mimas will be from more than twice this distance. This mosaic is one of ...

    More: images.nasa.gov/details/PIA172
    Credit: NASA/JPL-Caltech/Space Science Institute

    #mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics

  12. Crescent Mimas

    A thin sliver of Mimas is illuminated, the long shadows showing off its many craters, indicators of the moon's violent history. The most famous evidence of a collision on Mimas (246 miles, or 396 kilometers across) is the crater Herschel that gives Mimas its Death Star-like appearance. See PIA12568 for more ...

    More: images.nasa.gov/details/PIA182
    Credit: NASA/JPL-Caltech/Space Science Institute

    #mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics

  13. Crescent Mimas

    A thin sliver of Mimas is illuminated, the long shadows showing off its many craters, indicators of the moon's violent history. The most famous evidence of a collision on Mimas (246 miles, or 396 kilometers across) is the crater Herschel that gives Mimas its Death Star-like appearance. See PIA12568 for more ...

    More: images.nasa.gov/details/PIA182
    Credit: NASA/JPL-Caltech/Space Science Institute

    #mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics

  14. Streaked Craters in False-Color

    A false-color view of Saturn moon Mimas from NASA Cassini spacecraft accentuates terrain-dependent color differences and shows dark streaks running down the sides of some of the craters on the region of the moon that leads in its orbit around Saturn.

    More: images.nasa.gov/details/PIA125
    Credit: NASA/JPL/Space Science Institute

    #mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics

  15. Shadows and Rings

    Among the interplay of Saturn shadow and rings, Mimas, which appears in the lower-right corner of the image, orbits Saturn as a set of the ever-intriguing spokes appear in the B ring to the right of center in this image from NASA Cassini spacecraft.

    More: images.nasa.gov/details/PIA171
    Credit: NASA/JPL-Caltech/Space Science Institute

    #mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics

  16. Shadows and Rings

    Among the interplay of Saturn shadow and rings, Mimas, which appears in the lower-right corner of the image, orbits Saturn as a set of the ever-intriguing spokes appear in the B ring to the right of center in this image from NASA Cassini spacecraft.

    More: images.nasa.gov/details/PIA171
    Credit: NASA/JPL-Caltech/Space Science Institute

    #mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics

  17. Mimas Northern Polar Maps - February 2010

    The northern hemisphere of Saturn moon Mimas is seen in these polar stereographic maps, mosaicked from the best-available NASA Cassini and Voyager images.

    Credit: NASA/JPL/Space Science Institute

    #mimas #cassini #cassinihuygens #astronomy #astrophotography #astrophysics

  18. Mimas Three-Quarter Portrait

    Appearing like a cyclops gazing off into space, Saturn moon Mimas and its large Herschel Crater are profiled from NASA Cassini spacecraft. Herschel Crater is 130 kilometers 80 miles wide and covers most of the left of this image.

    Credit: NASA/JPL/Space Science Institute

    #mimas #cassini #cassinihuygens #astronomy #astrophotography #astrophysics

  19. Mimas Three-Quarter Portrait

    Appearing like a cyclops gazing off into space, Saturn moon Mimas and its large Herschel Crater are profiled from NASA Cassini spacecraft. Herschel Crater is 130 kilometers 80 miles wide and covers most of the left of this image.

    Credit: NASA/JPL/Space Science Institute

    #mimas #cassini #cassinihuygens #astronomy #astrophotography #astrophysics

  20. these icy little moons are becoming more and more fascinating and dynamic, and in the background there is always the possibility of Life...

    phys.org/news/2025-11-oceans-l

    #Space #Astrodon #Mimas #Enceladus #Miranda

  21. these icy little moons are becoming more and more fascinating and dynamic, and in the background there is always the possibility of Life...

    phys.org/news/2025-11-oceans-l

    #Space #Astrodon #Mimas #Enceladus #Miranda

  22. In this video I am comparing:

    The Conklin Duragraph with Diamine Walnut ink

    The Just Turnings Mimas with Colorverse Milky Way ink.

    The Retro51 Tornado with Diamine Raspberry Rose ink.

    Which pen will come out on top?

    youtu.be/YkTIpv0BYyE

    #fountainpens #fountainpen #penreview #writing #Conklin #Duragraph #Diamine #DiamineInkvent #inkvent #JustTurnings #JustTurningMimas #JustTurning #Mimas #Colorverse #ColorverseColorvent #Colorvent #retro51 #retro51

  23. #Mimas is a moon of #Saturn that is covered in craters. It is the smallest of Saturn's major moons and is also known as Saturn I.

    Mimas was discovered by William Herschel on September 17, 1789.

    Mimas is the smallest astronomical body known to be roughly rounded in shape due to its own gravity.

    knowledgezone.co.in/kbits/67a1

  24. #Mimas is a moon of #Saturn that is covered in craters. It is the smallest of Saturn's major moons and is also known as Saturn I.

    Mimas was discovered by William Herschel on September 17, 1789.

    Mimas is the smallest astronomical body known to be roughly rounded in shape due to its own gravity.

    knowledgezone.co.in/kbits/67a1

  25. #PhotoOfTheDay: #Mimas: Small #Moon with a Big #Crater

    Whatever hit Mimas nearly destroyed it. What remains is one of the largest impact craters on one of Saturn's smallest round moons. Analysis indicates that a slightly larger impact would have destroyed Mimas entirely.

    The huge crater, named #Herschel, spans about 130 kilometers and is featured here.

    apod.nasa.gov/apod/ap250112.ht

  26. #PhotoOfTheDay: #Mimas: Small #Moon with a Big #Crater

    Whatever hit Mimas nearly destroyed it. What remains is one of the largest impact craters on one of Saturn's smallest round moons. Analysis indicates that a slightly larger impact would have destroyed Mimas entirely.

    The huge crater, named #Herschel, spans about 130 kilometers and is featured here.

    apod.nasa.gov/apod/ap250112.ht

  27. Here is the northern hemisphere of Mimas in that full Voyager mosaic.

    These maps are never going to look great compared with Cassini imaging. My intention here is to show how some details not noticed at the time were indeed present in Voyager images. We will see some more of these in the coming days. #maps #Saturn #Voyager #Mimas

  28. Here is the northern hemisphere of Mimas in that full Voyager mosaic.

    These maps are never going to look great compared with Cassini imaging. My intention here is to show how some details not noticed at the time were indeed present in Voyager images. We will see some more of these in the coming days. #maps #Saturn #Voyager #Mimas

  29. At last, here is the composite map using Voyager 1 and 2 images of little Mimas. Most of the surface is covered. You might like to compare it with this Cassini map:

    jpl.nasa.gov/images/pia17214-m

    I pointed out that my map and the USGS map don't agree in crater positions in places. Neither of them match this very well. Pointing uncertainties, an incorrect shape model of Mimas in early mapping (not really a sphere) and other errors affect both of them. #Saturn #Voyager #Mimas

  30. At last, here is the composite map using Voyager 1 and 2 images of little Mimas. Most of the surface is covered. You might like to compare it with this Cassini map:

    jpl.nasa.gov/images/pia17214-m

    I pointed out that my map and the USGS map don't agree in crater positions in places. Neither of them match this very well. Pointing uncertainties, an incorrect shape model of Mimas in early mapping (not really a sphere) and other errors affect both of them. #Saturn #Voyager #Mimas

  31. The same for Voyager 2. Those rather unpromising images actually do have some details to add in the northern hemisphere. Tomorrow - putting it all together. #Saturn #Voyager #Mimas

  32. The same for Voyager 2. Those rather unpromising images actually do have some details to add in the northern hemisphere. Tomorrow - putting it all together. #Saturn #Voyager #Mimas

  33. Enough of the individual images, let's make a map! Here is a cylindrical projection photomosaic map made using the Voyager 1 images. Compare it with the USGS shaded relief map we started with. It extends a bit further out in some areas (e.g. north and south of the biggest crater, Herschel). If you overlay this map on the USGS map in photo-editing software, you will notice that features don't match exactly, there is some mis-registration. We'll look at this later. #Saturn #Voyager #Mimas

  34. Enough of the individual images, let's make a map! Here is a cylindrical projection photomosaic map made using the Voyager 1 images. Compare it with the USGS shaded relief map we started with. It extends a bit further out in some areas (e.g. north and south of the biggest crater, Herschel). If you overlay this map on the USGS map in photo-editing software, you will notice that features don't match exactly, there is some mis-registration. We'll look at this later. #Saturn #Voyager #Mimas

  35. Putting those images together is a bit tricky because there's a bit of rotation between them, but here is the result. More images would give better results - I'll look out for a better example later. With pictures like these you have to do everything you can. Now we are spoiled by amazing Cassini images, but imagine some future time when a super-telescope is imaging planets around other stars. You do what you can even with poor images. #Saturn #Voyager #Mimas

  36. Putting those images together is a bit tricky because there's a bit of rotation between them, but here is the result. More images would give better results - I'll look out for a better example later. With pictures like these you have to do everything you can. Now we are spoiled by amazing Cassini images, but imagine some future time when a super-telescope is imaging planets around other stars. You do what you can even with poor images. #Saturn #Voyager #Mimas

  37. Let's look at that idea with Mimas images. It's not the greatest example - it only uses 2 images - but I did this over 20 years ago and it's not always easy to find the files. Here are two Voyager 1 images taken during approach, enlarged 5 times without resampling (i.e. nearest neighbor), letting us see the pixels. All the same features are present but not sampled exactly the same by the pixel grid. With 2 images it's not real super-resolution, more just noise reduction. #Saturn #Voyager #Mimas

  38. Let's look at that idea with Mimas images. It's not the greatest example - it only uses 2 images - but I did this over 20 years ago and it's not always easy to find the files. Here are two Voyager 1 images taken during approach, enlarged 5 times without resampling (i.e. nearest neighbor), letting us see the pixels. All the same features are present but not sampled exactly the same by the pixel grid. With 2 images it's not real super-resolution, more just noise reduction. #Saturn #Voyager #Mimas

  39. A quick look at the images: Voyager 1 at the top (14 frames), Voyager 2 at the bottom (6 frames). Voyager 2 doesn't add much, but it adds something. The last 2 images show the night side illuminated (vastly exaggerated here) by light reflected off the planet and its rings, but I can't see any detail in there. The best images are of the southern hemisphere far from the biggest crater. Let's get mapping! #Saturn #Voyager #Mimas

  40. A quick look at the images: Voyager 1 at the top (14 frames), Voyager 2 at the bottom (6 frames). Voyager 2 doesn't add much, but it adds something. The last 2 images show the night side illuminated (vastly exaggerated here) by light reflected off the planet and its rings, but I can't see any detail in there. The best images are of the southern hemisphere far from the biggest crater. Let's get mapping! #Saturn #Voyager #Mimas

  41. Here is the full set of MImas images. As with other indexes like this which I have made, I'm using multispectral sequences, but not for colour... I use them to make super-resolution images. What's that? The technique is now widely used (e,g astronomical image-stacking, and in planetary applications, combining multiple frames of one scene to increase effective resolution. We'll look at his process later. I was an early user of the method. #Saturn #Voyager #Mimas

  42. Here is the full set of MImas images. As with other indexes like this which I have made, I'm using multispectral sequences, but not for colour... I use them to make super-resolution images. What's that? The technique is now widely used (e,g astronomical image-stacking, and in planetary applications, combining multiple frames of one scene to increase effective resolution. We'll look at his process later. I was an early user of the method. #Saturn #Voyager #Mimas

  43. Next door to Enceladus is Mimas, the one that looks like the Death Star if you are so minded. Let's start this time with the USGS map. Like their Enceladus map, it has big blank areas, but the situation is different. I said the Enceladus shaded relief map couldn't be extended because you can't see relief in the low resolution areas. That's not the case with Mimas. Let's check the images... #Saturn #Voyager #Mimas