Very (Martian crater)
Very is a crater on Mars , located south of the planet's equator in the heavily cratered highlands of Terra Sirenum in the Phaethontis quadrangle at 49.6°S and 177.1°W. It measures approximately 115 kilometers in diameter. Approved by the International Astronomical Union in 1973, the crater was named after Frank Washington Very . [1] About half a crater diameter to the west is the 180th meridian marking the easternmost and the westernmost extremities of the planet.
Page Revisions
| Year | Metadata | Sections | Top Words | First Paragraph |
| 2018 |
83628 characters 4 sections 4 paragraphs 6 images 658 internal links 9 external links |
changes 0.340 gullies 0.275 dry 0.242 frost 0.228 extremities 0.182 bjerknes 0.163 hsin 0.156 liu 0.151 easternmost 0.147 180th 0.143 rossby 0.143 177 0.131 westernmost 0.125 tending 0.121 gasa 0.121 |
Very is a crater on Mars , located south of the planet's equator in the heavily cratered highlands of Terra Sirenum in the Phaethontis quadrangle at 49.6°S and 177.1°W. It measures approximately 115 kilometers in diameter. Approved by the International Astronomical Union in 1973, the crater was named after Frank Washington Very . [1] About half a crater diameter to the west is the 180th meridian marking the easternmost and the westernmost extremities of the planet. |
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| 2017 |
42282 characters 4 sections 4 paragraphs 9 images 168 internal links 9 external links |
changes 0.340 gullies 0.275 dry 0.242 frost 0.228 extremities 0.182 bjerknes 0.163 hsin 0.156 liu 0.151 easternmost 0.147 180th 0.143 rossby 0.143 177 0.131 westernmost 0.125 tending 0.121 gasa 0.121 |
Very is a crater on Mars , located south of the planet's equator in the heavily cratered highlands of Terra Sirenum in the Phaethontis quadrangle at 49.6°S and 177.1°W. It measures approximately 115 kilometers in diameter. Approved by the International Astronomical Union in 1973, the crater was named after Frank Washington Very . [1] About half a crater diameter to the west is the 180th meridian marking the easternmost and the westernmost extremities of the planet. |
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| 2016 |
37624 characters 3 sections 1 paragraphs 9 images 156 internal links 8 external links |
changes 0.406 gullies 0.329 dry 0.289 frost 0.272 177 0.157 tending 0.145 gasa 0.145 frank 0.136 lubricate 0.133 carving 0.129 granular 0.128 sirenum 0.124 ice 0.122 experts 0.122 researchers 0.121 |
Very is a crater on Mars located south of the planet's equator in the heavily cratered highlands of Terra Sirenum in the Phaethontis quadrangle at 49.6°S and 177.1°W. Its name was approved in 1973, and it was named after Frank Washington Very . [1] On the basis of their form, aspects, positions, and location amongst and apparent interaction with features thought to be rich in water ice, many researchers believed that the processes carving the gullies involve liquid water. However, this remains a topic of active research. As soon as gullies were discovered, [2] researchers began to image many gullies over and over, looking for possible changes. By 2006, some changes were found. [3] Later, with further analysis it was determined that the changes could have occurred by dry granular flows rather than being driven by flowing water. [4] [5] [6] With continued observations many more changes were found in Gasa Crater and others. [7] With more repeated observations, more and more changes have been found; since the changes occur in the winter and spring, experts are tending to believe that gullies were formed from dry ice. Before-and-after images demonstrated the timing of this activity coincided with seasonal carbon-dioxide frost and temperatures that would not have allowed for liquid water. When dry ice frost changes to a gas, it may lubricate dry material to flow especially on steep slopes. [8] [9] [10] In some years frost, perhaps as thick as 1 meter. |
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| 2015 |
37542 characters 3 sections 1 paragraphs 9 images 156 internal links 8 external links |
changes 0.406 gullies 0.329 dry 0.289 frost 0.272 177 0.157 tending 0.145 gasa 0.145 frank 0.136 lubricate 0.133 carving 0.129 granular 0.128 sirenum 0.124 ice 0.122 experts 0.122 researchers 0.121 |
Very is a crater on Mars located south of the planet's equator in the heavily cratered highlands of Terra Sirenum in the Phaethontis quadrangle at 49.6°S and 177.1°W. Its name was approved in 1973, and it was named after Frank Washington Very . [1] On the basis of their form, aspects, positions, and location amongst and apparent interaction with features thought to be rich in water ice, many researchers believed that the processes carving the gullies involve liquid water. However, this remains a topic of active research. As soon as gullies were discovered, [2] researchers began to image many gullies over and over, looking for possible changes. By 2006, some changes were found. [3] Later, with further analysis it was determined that the changes could have occurred by dry granular flows rather than being driven by flowing water. [4] [5] [6] With continued observations many more changes were found in Gasa Crater and others. [7] With more repeated observations, more and more changes have been found; since the changes occur in the winter and spring, experts are tending to believe that gullies were formed from dry ice. Before-and-after images demonstrated the timing of this activity coincided with seasonal carbon-dioxide frost and temperatures that would not have allowed for liquid water. When dry ice frost changes to a gas, it may lubricate dry material to flow especially on steep slopes. [8] [9] [10] In some years frost, perhaps as thick as 1 meter. |