#mimas — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #mimas, aggregated by home.social.
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Oblate Mimas
NASA Cassini spacecraft reveals the cratered surface of Mimas, a moon whose shape is flattened at the poles.
More: https://images.nasa.gov/details/PIA11642
Credit: NASA/JPL/Space Science Institute#mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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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: https://images.nasa.gov/details/PIA14927
Credit: NASA/JPL-Caltech/Space Science Institute#mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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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: https://images.nasa.gov/details/PIA17213
Credit: NASA/JPL-Caltech/Space Science Institute#mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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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: https://images.nasa.gov/details/PIA17213
Credit: NASA/JPL-Caltech/Space Science Institute#mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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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: https://images.nasa.gov/details/PIA12571
Credit: NASA/JPL/Space Science Institute#mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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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: https://images.nasa.gov/details/PIA20515
Credit: NASA/JPL-Caltech/Space Science Institute#mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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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: https://images.nasa.gov/details/PIA18282
Credit: NASA/JPL-Caltech/Space Science Institute#mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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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: https://images.nasa.gov/details/PIA18282
Credit: NASA/JPL-Caltech/Space Science Institute#mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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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: https://images.nasa.gov/details/PIA12780
Credit: NASA/JPL/Space Science Institute#mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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Multicolor Mimas
This extreme false-color view of Mimas shows color variation across the moon surface
More: https://images.nasa.gov/details/PIA08841
Credit: NASA/JPL/Space Science Institute#mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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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: https://images.nasa.gov/details/PIA17213
Credit: NASA/JPL-Caltech/Space Science Institute#mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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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: https://images.nasa.gov/details/PIA18285
Credit: NASA/JPL-Caltech/Space Science Institute#mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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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: https://images.nasa.gov/details/PIA18285
Credit: NASA/JPL-Caltech/Space Science Institute#mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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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: https://images.nasa.gov/details/PIA12571
Credit: NASA/JPL/Space Science Institute#mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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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: https://images.nasa.gov/details/PIA17154
Credit: NASA/JPL-Caltech/Space Science Institute#mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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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: https://images.nasa.gov/details/PIA17154
Credit: NASA/JPL-Caltech/Space Science Institute#mimas #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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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
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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
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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
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these icy little moons are becoming more and more fascinating and dynamic, and in the background there is always the possibility of Life...
https://phys.org/news/2025-11-oceans-lurk-beneath-ice-solar.html
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these icy little moons are becoming more and more fascinating and dynamic, and in the background there is always the possibility of Life...
https://phys.org/news/2025-11-oceans-lurk-beneath-ice-solar.html
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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?
#fountainpens #fountainpen #penreview #writing #Conklin #Duragraph #Diamine #DiamineInkvent #inkvent #JustTurnings #JustTurningMimas #JustTurning #Mimas #Colorverse #ColorverseColorvent #Colorvent #retro51 #retro51
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#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.
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#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.
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#Mimas: Small #Moon with a Big #Crater
#Astronomy #Picture of the Day -
#Mimas: Small #Moon with a Big #Crater
#Astronomy #Picture of the Day -
Mars2020 - Sol 1358 - MastCam-Z 🪐
#atlas #cassini #enceladus #mars #mars2020 #mastcamz #mimas #navcam
⏩ 8 new pictures from @kevinmgill https://commons.wikimedia.org/wiki/Special:ListFiles?limit=8&user=OptimusPrimeBot&ilshowall=1&offset=20241221110335
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Mars2020 - Sol 1358 - MastCam-Z 🪐
#atlas #cassini #enceladus #mars #mars2020 #mastcamz #mimas #navcam
⏩ 8 new pictures from @kevinmgill https://commons.wikimedia.org/wiki/Special:ListFiles?limit=8&user=OptimusPrimeBot&ilshowall=1&offset=20241221110335
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In this video I am focusing on the Just Turnings Mimas fountain pen.
We take a look at the pen and how it writes with Diamine Inkvent 2021 Vintage Copper ink.
#fountainpens #fountainpen #penreview #writing #JustTurningsMimas #JustTurnings #Mimas #handmade #turnedpen #handturned #handturned #turned #DiamineVintageCopper #InkventVintageCopper #Diamine
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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
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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
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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:
https://www.jpl.nasa.gov/images/pia17214-mimas-global-map-june-2017/
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
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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:
https://www.jpl.nasa.gov/images/pia17214-mimas-global-map-june-2017/
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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
