Moons of Mars
The two moons of Mars are Phobos and Deimos . [1] Both were discovered by Asaph Hall in August 1877 [2] and are named after the Greek mythological twin characters Phobos (panic/fear) and Deimos (terror/dread) who accompanied their father Ares , god of war, into battle. Ares was known as Mars to the Romans .
Page Revisions
| Year | Metadata | Sections | Top Words | First Paragraph |
| 2018 |
139919 characters 14 sections 29 paragraphs 20 images 425 internal links 41 external links |
phobos 0.616 deimos 0.363 swift 0.188 moons 0.185 laputa 0.130 gulliver 0.109 satellites 0.091 1877 0.087 voltaire 0.086 hall 0.084 hayall 0.077 sierras 0.077 mission 0.066 hoax 0.065 lagado 0.065 |
The two moons of Mars are Phobos and Deimos . [1] Both were discovered by Asaph Hall in August 1877 [2] and are named after the Greek mythological twin characters Phobos (panic/fear) and Deimos (terror/dread) who accompanied their father Ares , god of war, into battle. Ares was known as Mars to the Romans . |
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| 2017 |
128331 characters 14 sections 27 paragraphs 20 images 415 internal links 37 external links |
phobos 0.623 deimos 0.386 moons 0.197 swift 0.175 satellites 0.097 voltaire 0.092 hall 0.090 hayall 0.082 sierras 0.082 mission 0.070 1877 0.069 hoax 0.069 laputa 0.069 tidal 0.068 sample 0.065 |
The two moons of Mars are Phobos and Deimos . [1] Both moons were discovered in August 1877 by Asaph Hall [2] and are named after the characters Phobos (panic/fear) and Deimos (terror/dread) who, in Greek mythology , accompanied their father Ares , god of war, into battle. Ares was known as Mars to the Romans . |
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| 2016 |
127498 characters 14 sections 27 paragraphs 19 images 411 internal links 39 external links |
phobos 0.626 deimos 0.397 moons 0.204 swift 0.171 satellites 0.095 voltaire 0.090 hall 0.088 hayall 0.080 sierras 0.080 mission 0.068 1877 0.068 hoax 0.068 laputa 0.068 tidal 0.067 sample 0.064 |
The two moons of Mars are Phobos and Deimos . [1] Both moons were discovered in 1877 by Asaph Hall [2] and are named after the characters Phobos (panic/fear) and Deimos (terror/dread) who, in Greek mythology , accompanied their father Ares , god of war, into battle. Ares was known as Mars to the Romans . It is possible that Mars may have moons smaller than 50–100 meters and a dust ring between Phobos and Deimos, but none have been discovered. [3] |
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| 2015 |
123939 characters 14 sections 25 paragraphs 19 images 413 internal links 36 external links |
phobos 0.610 deimos 0.390 moons 0.186 swift 0.185 satellites 0.103 voltaire 0.097 hall 0.095 hayall 0.087 sierras 0.087 mission 0.074 1877 0.074 hoax 0.073 laputa 0.073 tidal 0.072 sample 0.069 |
The moons of Mars are Phobos and Deimos . [1] Both moons were discovered in 1877 by Asaph Hall [2] and are named after the characters Phobos (panic/fear) and Deimos (terror/dread) who, in Greek mythology , accompanied their father Ares , god of war, into battle. Ares was known as Mars to the Romans . It is possible that Mars may have moons smaller than 50–100 meters and a dust ring between Phobos and Deimos, but none have been discovered. [3] |
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| 2014 |
118509 characters 13 sections 21 paragraphs 18 images 398 internal links 36 external links |
phobos 0.521 deimos 0.360 swift 0.228 moons 0.185 voltaire 0.120 hall 0.117 satellites 0.112 hayall 0.107 sierras 0.107 1877 0.091 hoax 0.090 laputa 0.090 tidal 0.089 capture 0.082 origin 0.082 |
Mars has two moons , Phobos and Deimos , [1] which are thought to be captured asteroids . [2] Both satellites were discovered in 1877 by Asaph Hall [3] and are named after the characters Phobos (panic/fear) and Deimos (terror/dread) who, in Greek mythology , accompanied their father Ares , god of war, into battle. Ares was known as Mars to the Romans . It is possible that Mars may have moons smaller than 50–100 meters and a dust ring between Phobos and Deimos may be present but none has been discovered. [4] |
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| 2013 |
116184 characters 12 sections 18 paragraphs 17 images 396 internal links 34 external links |
phobos 0.505 deimos 0.379 moons 0.210 swift 0.137 voltaire 0.126 hall 0.123 hayall 0.113 sierras 0.113 satellites 0.103 1877 0.095 hoax 0.095 laputa 0.095 tidal 0.093 capture 0.086 origin 0.086 |
Mars has two known moons , Phobos and Deimos , [1] which are thought to be captured asteroids . [2] Both satellites were discovered in 1877 by Asaph Hall [3] and are named after the characters Phobos (panic/fear) and Deimos (terror/dread) who, in Greek mythology , accompanied their father Ares , god of war, into battle. Ares was known as Mars to the Romans . It is possible that Mars may have moons smaller than 50 – 100 meters and a dust ring between Phobos and Deimos may be present but none has been discovered. [4] |
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| 2012 |
100556 characters 10 sections 13 paragraphs 15 images 389 internal links 22 external links |
phobos 0.472 deimos 0.346 moons 0.162 clock 0.124 voltaire 0.123 august 0.123 hall 0.120 hayall 0.110 sierras 0.110 object 0.108 satellites 0.101 swift 0.101 1877 0.093 hoax 0.093 laputa 0.093 |
Mars has two moons , Phobos and Deimos , which are thought to be captured asteroids . Both satellites were discovered in 1877 by Asaph Hall and are named after the characters Phobos (panic/fear) and Deimos (terror/dread) who, in Greek mythology , accompanied their father Ares , god of war, into battle. Ares was known as Mars to the Romans . |
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| 2011 |
105040 characters 8 sections 14 paragraphs 15 images 390 internal links 26 external links |
phobos 0.512 deimos 0.375 moons 0.175 voltaire 0.134 hall 0.130 hayall 0.119 sierras 0.119 satellites 0.110 swift 0.109 1877 0.101 hoax 0.101 laputa 0.101 tidal 0.099 capture 0.091 origin 0.091 |
Mars has two small moons , Phobos and Deimos , which are thought to be captured asteroids . Both satellites were discovered in 1877 by Asaph Hall , and are named after the characters Phobos (panic/fear) and Deimos (terror/dread) who, in Greek mythology , accompanied their father Ares , god of war, into battle. Ares was known as Mars to the Romans . |
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| 2010 |
92849 characters 9 sections 16 paragraphs 15 images 367 internal links 14 external links |
phobos 0.425 deimos 0.403 hall 0.210 moons 0.205 swift 0.156 1877 0.145 voltaire 0.144 satellites 0.134 hayall 0.128 sierras 0.128 hoax 0.108 laputa 0.108 slowly 0.091 asaph 0.088 rises 0.087 |
Mars has two small moons , Phobos and Deimos , which are thought to be captured asteroids . Both satellites were discovered in 1877 by Asaph Hall , and are named after the characters Phobos (panic/fear) and Deimos (terror/dread) who, in Greek mythology , accompanied their father Ares , god of war, into battle. Ares was known as Mars to the Romans . |
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| 2009 |
92985 characters 10 sections 14 paragraphs 15 images 372 internal links 14 external links |
phobos 0.397 deimos 0.366 hall 0.223 moons 0.199 swift 0.165 1877 0.153 voltaire 0.152 satellites 0.142 hayall 0.136 sierras 0.136 hoax 0.115 laputa 0.115 slowly 0.097 asaph 0.094 rises 0.092 |
Both satellites were discovered in 1877 by Asaph Hall , and are named after the characters Phobos (panic/fear) and Deimos (terror/dread) who, in Greek mythology , accompanied their father Ares , god of war, into battle. Ares was known as Mars to the Romans . |
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| 2008 |
90881 characters 7 sections 18 paragraphs 13 images 383 internal links 13 external links |
phobos 0.413 deimos 0.386 swift 0.242 hall 0.217 voltaire 0.198 moons 0.194 1877 0.149 satellites 0.121 laputa 0.112 1726 0.106 novel 0.096 slowly 0.094 gulliver 0.094 diameters 0.093 asaph 0.091 |
If viewed from the surface of Mars near its equator, full Phobos looks about one third as big as the Earth's full moon from Earth. It has an angular diameter of between 8' (rising) and 12' (overhead). It would look smaller when the observer is further away from the Martian equator, and is completely invisible (always beyond the horizon) from Mars' polar ice caps. Deimos looks more like a bright star or planet for an observer on Mars, only slightly bigger than Venus looks from earth; it has an angular diameter of about 2'. The Sun's angular diameter as seen from Mars, by contrast, is about 21'. Thus there are no total solar eclipses on Mars, as the moons are far too small to completely cover the Sun. On the other hand, total lunar eclipses of Phobos are very common, happening almost every night [1] . See also Transit of Phobos from Mars and Transit of Deimos from Mars for eclipse-like events. |
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| 2007 |
50589 characters 3 sections 11 paragraphs 10 images 235 internal links 2 external links |
phobos 0.461 deimos 0.443 voltaire 0.147 slowly 0.141 rises 0.134 moons 0.132 satellites 0.129 swift 0.120 eclipses 0.119 angular 0.118 speedy 0.099 satirical 0.089 arcminutes 0.089 astron 0.089 local 0.087 |
If viewed from the surface of Mars near its equator, full Phobos looks about one third as big as the Earth's full moon from Earth. It has an angular diameter of between 8' (rising) and 12' (overhead). It would look smaller when the observer is further away from the Martian equator, and is completely invisible (always beyond the horizon) from Mars' polar ice caps. Deimos looks more like a bright star or planet for an observer on Mars, only slightly bigger than Venus looks from earth; it has an angular diameter of about 2'. The Sun's angular diameter as seen from Mars, by contrast, is about 21'. Thus there are no total solar eclipses on Mars, as the moons are far too small to completely cover the Sun. On the other hand, total lunar eclipses of Phobos are very common, happening almost every night. See also Transit of Phobos from Mars and Transit of Deimos from Mars for eclipse-like events. |
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| 2006 |
44950 characters 3 sections 11 paragraphs 5 images 222 internal links 1 external links |
deimos 0.444 phobos 0.428 voltaire 0.164 slowly 0.157 rises 0.149 satellites 0.144 swift 0.134 angular 0.131 moons 0.117 speedy 0.110 satirical 0.099 arcminutes 0.099 astron 0.099 local 0.097 sphere 0.095 |
If viewed from the surface of Mars, the motions of Phobos and Deimos would appear very different from that of our own Moon. Speedy Phobos rises in the west, sets in the east, and rises again in just 11 hours, while Deimos, being only just outside synchronous orbit, rises as expected in the east but very slowly. Despite its 30 hour orbit, it takes 2.7 days to set in the west as it slowly falls behind the rotation of Mars, and as long again to rise. |
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| 2005 |
36588 characters 0 sections 9 paragraphs 6 images 208 internal links 0 external links |
phobos 0.430 deimos 0.371 slowly 0.197 rises 0.187 angular 0.164 moons 0.147 speedy 0.138 satirical 0.124 local 0.121 ares 0.119 strings 0.116 template 0.116 1752 0.116 tidal 0.114 dread 0.111 |
From the surface of Mars, the motions of Phobos and Deimos appear very different from that of our own moon. Speedy Phobos rises in the west, sets in the east, and rises again in just 11 hours, while Deimos, being only just outside synchronous orbit, rises as expected in the east but very slowly. Despite its 30 hour orbit, it takes 2.7 days to set in the west as it slowly falls behind the rotation of Mars, and as long again to rise. |