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| 1 | +<html> |
| 2 | +<head> |
| 3 | + |
| 4 | + |
| 5 | +<title>Planetary Fact Sheet - Ratio to Earth</title> |
| 6 | +</head> |
| 7 | + |
| 8 | +<p> <!-- text and html formatting by drw at n.s.s.d c --> |
| 9 | +<hr> |
| 10 | +<h1>Planetary Fact Sheet - Ratio to Earth Values</h1> |
| 11 | +<hr> |
| 12 | +<p> |
| 13 | + |
| 14 | +<table role="presentation" border="2" cellspacing="1" cellpadding="4"> |
| 15 | +<tr> |
| 16 | + <td align="left"><b> </b></td> |
| 17 | + <td align="center" bgcolor="F5F5F5"><b> <a href="mercuryfact.html">MERCURY</a> </b></td> |
| 18 | + <td align="center"><b> <a href="venusfact.html">VENUS</a> </b></td> |
| 19 | + <td align="center" bgcolor="F5F5F5"><b> <a href="earthfact.html">EARTH</a> </b></td> |
| 20 | + <td align="center"><b> <a href="moonfact.html">MOON</a> </b></td> |
| 21 | + <td align="center" bgcolor="F5F5F5"><b> <a href="marsfact.html">MARS</a> </b></td> |
| 22 | + <td align="center"><b> <a href="jupiterfact.html">JUPITER</a> </b></td> |
| 23 | + <td align="center" bgcolor="F5F5F5"><b> <a href="saturnfact.html">SATURN</a> </b></td> |
| 24 | + <td align="center"><b> <a href="uranusfact.html">URANUS</a> </b></td> |
| 25 | + <td align="center" bgcolor="F5F5F5"><b> <a href="neptunefact.html">NEPTUNE</a> </b></td> |
| 26 | + <td align="center"><b> <a href="plutofact.html">PLUTO</a> </b></td> |
| 27 | +</tr> |
| 28 | +<tr> |
| 29 | + <td align="left"><b><a href="planetfact_ratio_notes.html#mass">Mass</a></b></td> |
| 30 | + <td align="center" bgcolor="F5F5F5">0.0553</td> |
| 31 | + <td align="center" bgcolor="FFFFFF">0.815</td> |
| 32 | + <td align="center" bgcolor="F5F5F5">1</td> |
| 33 | + <td align="center" bgcolor="FFFFFF">0.0123</td> |
| 34 | + <td align="center" bgcolor="F5F5F5">0.107</td> |
| 35 | + <td align="center" bgcolor="FFFFFF">317.8</td> |
| 36 | + <td align="center" bgcolor="F5F5F5">95.2</td> |
| 37 | + <td align="center" bgcolor="FFFFFF">14.5</td> |
| 38 | + <td align="center" bgcolor="F5F5F5">17.1</td> |
| 39 | + <td align="center" bgcolor="FFFFFF">0.0022</td> |
| 40 | +</tr> |
| 41 | +<tr> |
| 42 | + <td align="left"><b><a href="planetfact_ratio_notes.html#diam">Diameter</a></b></td> |
| 43 | + <td align="center" bgcolor="F5F5F5">0.383</td> |
| 44 | + <td align="center" bgcolor="FFFFFF">0.949</td> |
| 45 | + <td align="center" bgcolor="F5F5F5">1</td> |
| 46 | + <td align="center" bgcolor="FFFFFF">0.2724</td> |
| 47 | + <td align="center" bgcolor="F5F5F5">0.532</td> |
| 48 | + <td align="center" bgcolor="FFFFFF">11.21</td> |
| 49 | + <td align="center" bgcolor="F5F5F5">9.45</td> |
| 50 | + <td align="center" bgcolor="FFFFFF">4.01</td> |
| 51 | + <td align="center" bgcolor="F5F5F5">3.88</td> |
| 52 | + <td align="center" bgcolor="FFFFFF">0.187</td> |
| 53 | +</tr> |
| 54 | +<tr> |
| 55 | + <td align="left"><b><a href="planetfact_ratio_notes.html#dens">Density</a></b></td> |
| 56 | + <td align="center" bgcolor="F5F5F5">0.985</td> |
| 57 | + <td align="center" bgcolor="FFFFFF">0.951</td> |
| 58 | + <td align="center" bgcolor="F5F5F5">1</td> |
| 59 | + <td align="center" bgcolor="FFFFFF">0.606</td> |
| 60 | + <td align="center" bgcolor="F5F5F5">0.714</td> |
| 61 | + <td align="center" bgcolor="FFFFFF">0.241</td> |
| 62 | + <td align="center" bgcolor="F5F5F5">0.125</td> |
| 63 | + <td align="center" bgcolor="FFFFFF">0.230</td> |
| 64 | + <td align="center" bgcolor="F5F5F5">0.297</td> |
| 65 | + <td align="center" bgcolor="FFFFFF">0.336</td> |
| 66 | +</tr> |
| 67 | +<tr> |
| 68 | + <td align="left"><b><a href="planetfact_ratio_notes.html#grav">Gravity</a></b></td> |
| 69 | + <td align="center" bgcolor="F5F5F5">0.378</td> |
| 70 | + <td align="center" bgcolor="FFFFFF">0.907</td> |
| 71 | + <td align="center" bgcolor="F5F5F5">1</td> |
| 72 | + <td align="center" bgcolor="FFFFFF">0.166</td> |
| 73 | + <td align="center" bgcolor="F5F5F5">0.377</td> |
| 74 | + <td align="center" bgcolor="FFFFFF">2.36</td> |
| 75 | + <td align="center" bgcolor="F5F5F5">0.916</td> |
| 76 | + <td align="center" bgcolor="FFFFFF">0.889</td> |
| 77 | + <td align="center" bgcolor="F5F5F5">1.12</td> |
| 78 | + <td align="center" bgcolor="FFFFFF">0.071</td> |
| 79 | +</tr> |
| 80 | +<tr> |
| 81 | + <td align="left"><b><a href="planetfact_ratio_notes.html#escv">Escape Velocity</a></b></td> |
| 82 | + <td align="center" bgcolor="F5F5F5">0.384</td> |
| 83 | + <td align="center" bgcolor="FFFFFF">0.926</td> |
| 84 | + <td align="center" bgcolor="F5F5F5">1</td> |
| 85 | + <td align="center" bgcolor="FFFFFF">0.213</td> |
| 86 | + <td align="center" bgcolor="F5F5F5">0.450</td> |
| 87 | + <td align="center" bgcolor="FFFFFF">5.32</td> |
| 88 | + <td align="center" bgcolor="F5F5F5">3.17</td> |
| 89 | + <td align="center" bgcolor="FFFFFF">1.90</td> |
| 90 | + <td align="center" bgcolor="F5F5F5">2.10</td> |
| 91 | + <td align="center" bgcolor="FFFFFF">0.116</td> |
| 92 | +</tr> |
| 93 | +<tr> |
| 94 | + <td align="left"><b><a href="planetfact_ratio_notes.html#rotp">Rotation Period</a></b></td> |
| 95 | + <td align="center" bgcolor="F5F5F5">58.8</td> |
| 96 | + <td align="center" bgcolor="FFFFFF">-244</td> |
| 97 | + <td align="center" bgcolor="F5F5F5">1</td> |
| 98 | + <td align="center" bgcolor="FFFFFF">27.4</td> |
| 99 | + <td align="center" bgcolor="F5F5F5">1.03</td> |
| 100 | + <td align="center" bgcolor="FFFFFF">0.415</td> |
| 101 | + <td align="center" bgcolor="F5F5F5">0.445</td> |
| 102 | + <td align="center" bgcolor="FFFFFF">-0.720</td> |
| 103 | + <td align="center" bgcolor="F5F5F5">0.673</td> |
| 104 | + <td align="center" bgcolor="FFFFFF">6.41</td> |
| 105 | +</tr> |
| 106 | +<tr> |
| 107 | + <td align="left"><b><a href="planetfact_ratio_notes.html#leng">Length of Day</a></b></td> |
| 108 | + <td align="center" bgcolor="F5F5F5">175.9</td> |
| 109 | + <td align="center" bgcolor="FFFFFF">116.8</td> |
| 110 | + <td align="center" bgcolor="F5F5F5">1</td> |
| 111 | + <td align="center" bgcolor="FFFFFF">29.5</td> |
| 112 | + <td align="center" bgcolor="F5F5F5">1.03</td> |
| 113 | + <td align="center" bgcolor="FFFFFF">0.414</td> |
| 114 | + <td align="center" bgcolor="F5F5F5">0.444</td> |
| 115 | + <td align="center" bgcolor="FFFFFF">0.718</td> |
| 116 | + <td align="center" bgcolor="F5F5F5">0.671</td> |
| 117 | + <td align="center" bgcolor="FFFFFF">6.39</td> |
| 118 | +</tr> |
| 119 | +<tr> |
| 120 | + <td align="left"><b><a href="planetfact_ratio_notes.html#dist">Distance from Sun</a></b></td> |
| 121 | + <td align="center" bgcolor="F5F5F5">0.387</td> |
| 122 | + <td align="center" bgcolor="FFFFFF">0.723</td> |
| 123 | + <td align="center" bgcolor="F5F5F5">1</td> |
| 124 | + <td align="center" bgcolor="FFFFFF">0.00257*</td> |
| 125 | + <td align="center" bgcolor="F5F5F5">1.52</td> |
| 126 | + <td align="center" bgcolor="FFFFFF">5.20</td> |
| 127 | + <td align="center" bgcolor="F5F5F5">9.57</td> |
| 128 | + <td align="center" bgcolor="FFFFFF">19.17</td> |
| 129 | + <td align="center" bgcolor="F5F5F5">30.18</td> |
| 130 | + <td align="center" bgcolor="FFFFFF">39.48</td> |
| 131 | +</tr> |
| 132 | +<tr> |
| 133 | + <td align="left"><b><a href="planetfact_ratio_notes.html#peri">Perihelion</a></b></td> |
| 134 | + <td align="center" bgcolor="F5F5F5">0.313</td> |
| 135 | + <td align="center" bgcolor="FFFFFF">0.731</td> |
| 136 | + <td align="center" bgcolor="F5F5F5">1</td> |
| 137 | + <td align="center" bgcolor="FFFFFF">0.00247*</td> |
| 138 | + <td align="center" bgcolor="F5F5F5">1.41</td> |
| 139 | + <td align="center" bgcolor="FFFFFF">5.04</td> |
| 140 | + <td align="center" bgcolor="F5F5F5">9.23</td> |
| 141 | + <td align="center" bgcolor="FFFFFF">18.58</td> |
| 142 | + <td align="center" bgcolor="F5F5F5">30.40</td> |
| 143 | + <td align="center" bgcolor="FFFFFF">30.16</td> |
| 144 | +</tr> |
| 145 | +<tr> |
| 146 | + <td align="left"><b><a href="planetfact_ratio_notes.html#peri">Aphelion</a></b></td> |
| 147 | + <td align="center" bgcolor="F5F5F5">0.459</td> |
| 148 | + <td align="center" bgcolor="FFFFFF">0.716</td> |
| 149 | + <td align="center" bgcolor="F5F5F5">1</td> |
| 150 | + <td align="center" bgcolor="FFFFFF">0.00267*</td> |
| 151 | + <td align="center" bgcolor="F5F5F5">1.64</td> |
| 152 | + <td align="center" bgcolor="FFFFFF">5.37</td> |
| 153 | + <td align="center" bgcolor="F5F5F5">9.91</td> |
| 154 | + <td align="center" bgcolor="FFFFFF">19.73</td> |
| 155 | + <td align="center" bgcolor="F5F5F5">29.97</td> |
| 156 | + <td align="center" bgcolor="FFFFFF">48.49</td> |
| 157 | +</tr> |
| 158 | +<tr> |
| 159 | + <td align="left"><b><a href="planetfact_ratio_notes.html#orbp">Orbital Period</a></b></td> |
| 160 | + <td align="center" bgcolor="F5F5F5">0.241</td> |
| 161 | + <td align="center" bgcolor="FFFFFF">0.615</td> |
| 162 | + <td align="center" bgcolor="F5F5F5">1</td> |
| 163 | + <td align="center" bgcolor="FFFFFF">0.0748*</td> |
| 164 | + <td align="center" bgcolor="F5F5F5">1.88</td> |
| 165 | + <td align="center" bgcolor="FFFFFF">11.9</td> |
| 166 | + <td align="center" bgcolor="F5F5F5">29.4</td> |
| 167 | + <td align="center" bgcolor="FFFFFF">83.7</td> |
| 168 | + <td align="center" bgcolor="F5F5F5">163.7</td> |
| 169 | + <td align="center" bgcolor="FFFFFF">247.9</td> |
| 170 | +</tr> |
| 171 | +<tr> |
| 172 | + <td align="left"><b><a href="planetfact_ratio_notes.html#orbv">Orbital Velocity</a></b></td> |
| 173 | + <td align="center" bgcolor="F5F5F5">1.59</td> |
| 174 | + <td align="center" bgcolor="FFFFFF">1.18</td> |
| 175 | + <td align="center" bgcolor="F5F5F5">1</td> |
| 176 | + <td align="center" bgcolor="FFFFFF">0.0343*</td> |
| 177 | + <td align="center" bgcolor="F5F5F5">0.808</td> |
| 178 | + <td align="center" bgcolor="FFFFFF">0.439</td> |
| 179 | + <td align="center" bgcolor="F5F5F5">0.325</td> |
| 180 | + <td align="center" bgcolor="FFFFFF">0.228</td> |
| 181 | + <td align="center" bgcolor="F5F5F5">0.182</td> |
| 182 | + <td align="center" bgcolor="FFFFFF">0.157</td> |
| 183 | +</tr> |
| 184 | +<tr> |
| 185 | + <td align="left"><b><a href="planetfact_ratio_notes.html#orbe">Orbital Eccentricity</a></b></td> |
| 186 | + <td align="center" bgcolor="F5F5F5">12.3</td> |
| 187 | + <td align="center" bgcolor="FFFFFF">0.401</td> |
| 188 | + <td align="center" bgcolor="F5F5F5">1</td> |
| 189 | + <td align="center" bgcolor="FFFFFF">3.29</td> |
| 190 | + <td align="center" bgcolor="F5F5F5">5.60</td> |
| 191 | + <td align="center" bgcolor="FFFFFF">2.93</td> |
| 192 | + <td align="center" bgcolor="F5F5F5">3.38</td> |
| 193 | + <td align="center" bgcolor="FFFFFF">2.74</td> |
| 194 | + <td align="center" bgcolor="F5F5F5">0.677</td> |
| 195 | + <td align="center" bgcolor="FFFFFF">14.6</td> |
| 196 | +</tr> |
| 197 | +<tr> |
| 198 | + <td align="left"><b><a href="planetfact_ratio_notes.html#orbo">Obliquity to Orbit</a></b></td> |
| 199 | + <td align="center" bgcolor="F5F5F5">0.001</td> |
| 200 | + <td align="center" bgcolor="FFFFFF">0.113*</td> |
| 201 | + <td align="center" bgcolor="F5F5F5">1</td> |
| 202 | + <td align="center" bgcolor="FFFFFF">0.285</td> |
| 203 | + <td align="center" bgcolor="F5F5F5">1.07</td> |
| 204 | + <td align="center" bgcolor="FFFFFF">0.134</td> |
| 205 | + <td align="center" bgcolor="F5F5F5">1.14</td> |
| 206 | + <td align="center" bgcolor="FFFFFF">4.17*</td> |
| 207 | + <td align="center" bgcolor="F5F5F5">1.21</td> |
| 208 | + <td align="center" bgcolor="FFFFFF">2.45*</td> |
| 209 | +</tr> |
| 210 | +<tr> |
| 211 | + <td align="left"><b><a href="planetfact_ratio_notes.html#surp">Surface Pressure</a></b></td> |
| 212 | + <td align="center" bgcolor="F5F5F5">0</td> |
| 213 | + <td align="center" bgcolor="FFFFFF">92</td> |
| 214 | + <td align="center" bgcolor="F5F5F5">1</td> |
| 215 | + <td align="center" bgcolor="FFFFFF">0</td> |
| 216 | + <td align="center" bgcolor="F5F5F5">0.01</td> |
| 217 | + <td align="center" bgcolor="FFFFFF">Unknown*</td> |
| 218 | + <td align="center" bgcolor="F5F5F5">Unknown*</td> |
| 219 | + <td align="center" bgcolor="FFFFFF">Unknown*</td> |
| 220 | + <td align="center" bgcolor="F5F5F5">Unknown*</td> |
| 221 | + <td align="center" bgcolor="FFFFFF">0.00001</td> |
| 222 | +</tr> |
| 223 | +<tr> |
| 224 | + <td align="left"><b><a href="planetfact_ratio_notes.html#sats">Number of Moons</a></b></td> |
| 225 | + <td align="center" bgcolor="F5F5F5">0</td> |
| 226 | + <td align="center" bgcolor="FFFFFF">0</td> |
| 227 | + <td align="center" bgcolor="F5F5F5">1</td> |
| 228 | + <td align="center" bgcolor="FFFFFF">0</td> |
| 229 | + <td align="center" bgcolor="F5F5F5">2</td> |
| 230 | + <td align="center" bgcolor="FFFFFF">92</td> |
| 231 | + <td align="center" bgcolor="F5F5F5">83</td> |
| 232 | + <td align="center" bgcolor="FFFFFF">27</td> |
| 233 | + <td align="center" bgcolor="F5F5F5">14</td> |
| 234 | + <td align="center" bgcolor="FFFFFF">5</td> |
| 235 | +</tr> |
| 236 | +<tr> |
| 237 | + <td align="left"><b><a href="planetfact_ratio_notes.html#ring">Ring System?</a></b></td> |
| 238 | + <td align="center" bgcolor="F5F5F5">No</td> |
| 239 | + <td align="center" bgcolor="FFFFFF">No</td> |
| 240 | + <td align="center" bgcolor="F5F5F5">No</td> |
| 241 | + <td align="center" bgcolor="FFFFFF">No</td> |
| 242 | + <td align="center" bgcolor="F5F5F5">No</td> |
| 243 | + <td align="center" bgcolor="FFFFFF">Yes</td> |
| 244 | + <td align="center" bgcolor="F5F5F5">Yes</td> |
| 245 | + <td align="center" bgcolor="FFFFFF">Yes</td> |
| 246 | + <td align="center" bgcolor="F5F5F5">Yes</td> |
| 247 | + <td align="center" bgcolor="FFFFFF">No</td> |
| 248 | +</tr> |
| 249 | +<tr> |
| 250 | + <td align="left"><b><a href="planetfact_ratio_notes.html#magf">Global Magnetic Field?</a></b></td> |
| 251 | + <td align="center" bgcolor="F5F5F5">Yes</td> |
| 252 | + <td align="center" bgcolor="FFFFFF">No</td> |
| 253 | + <td align="center" bgcolor="F5F5F5">Yes</td> |
| 254 | + <td align="center" bgcolor="FFFFFF">No</td> |
| 255 | + <td align="center" bgcolor="F5F5F5">No</td> |
| 256 | + <td align="center" bgcolor="FFFFFF">Yes</td> |
| 257 | + <td align="center" bgcolor="F5F5F5">Yes</td> |
| 258 | + <td align="center" bgcolor="FFFFFF">Yes</td> |
| 259 | + <td align="center" bgcolor="F5F5F5">Yes</td> |
| 260 | + <td align="center" bgcolor="FFFFFF">Unknown</td> |
| 261 | +</tr> |
| 262 | +<tr> |
| 263 | + <td align="left"><b> </b></td> |
| 264 | + <td align="center" bgcolor="F5F5F5"><b> <a href="mercuryfact.html">MERCURY</a> </b></td> |
| 265 | + <td align="center"><b> <a href="venusfact.html">VENUS</a> </b></td> |
| 266 | + <td align="center" bgcolor="F8F8F8"><b> <a href="earthfact.html">EARTH</a> </b></td> |
| 267 | + <td align="center"><b> <a href="moonfact.html">MOON</a> </b></td> |
| 268 | + <td align="center" bgcolor="F7F7F7"><b> <a href="marsfact.html">MARS</a> </b></td> |
| 269 | + <td align="center"><b> <a href="jupiterfact.html">JUPITER</a> </b></td> |
| 270 | + <td align="center" bgcolor="F6F6F6"><b> <a href="saturnfact.html">SATURN</a> </b></td> |
| 271 | + <td align="center"><b> <a href="uranusfact.html">URANUS</a> </b></td> |
| 272 | + <td align="center" bgcolor="F5F5F5"><b> <a href="neptunefact.html">NEPTUNE</a> </b></td> |
| 273 | + <td align="center"><b> <a href="plutofact.html">PLUTO</a> </b></td> |
| 274 | +</tr> |
| 275 | +</table> |
| 276 | + |
| 277 | +<p> |
| 278 | +* - See the |
| 279 | +<a href="planetfact_ratio_notes.html"> Fact Sheet Notes.</a> |
| 280 | +<p> |
| 281 | +<hr> |
| 282 | +<p> |
| 283 | + |
| 284 | +<b> |
| 285 | +<a href="index.html"> Planetary Fact Sheet in Metric Units</a><p> |
| 286 | + |
| 287 | +<a href="planet_table_british.html"> Planetary Fact Sheet in U.S. Units</a><p> |
| 288 | + |
| 289 | + |
| 290 | +<a href="/web/20230608230829/https://nssdc.gsfc.nasa.gov/planetary/planetfact.html"> Index of Planetary Fact Sheets</a> |
| 291 | +- More detailed fact sheets for each planet<p> |
| 292 | + |
| 293 | +<a href="planetfact_ratio_notes.html"> Notes on the Fact Sheet</a> |
| 294 | +- Explanations of the values and headings in the fact sheet<p> |
| 295 | + |
| 296 | +<a href="/web/20230608230829/https://nssdc.gsfc.nasa.gov/planetary/education/schoolyard_ss/"> Schoolyard Solar System</a> |
| 297 | +- Demonstration scale model of the solar system for the classroom<br> |
| 298 | + |
| 299 | +</b> |
| 300 | +<hr> |
| 301 | + |
| 302 | +<img vspace="5" align="left" alt="NASA" src="../img/nasa_logo.png"> |
| 303 | +<address> |
| 304 | +Author/Curator:<br> |
| 305 | +Dr. David R. Williams, <a href="mailto:dave.williams@nasa.gov">dave.williams@nasa.gov</a><br> |
| 306 | +NSSDCA, Mail Code 690.1<br> |
| 307 | +NASA Goddard Space Flight Center<br> |
| 308 | +Greenbelt, MD 20771<br> |
| 309 | ++1-301-286-1258<br> |
| 310 | +</address> |
| 311 | +<br clear="left"> |
| 312 | +<hr> |
| 313 | +<h6>NASA Official: Dave Williams, david.r.williams@nasa.gov<br> |
| 314 | + |
| 315 | + |
| 316 | +Last Updated: 11 February 2023, DRW</h6> |
| 317 | + |
| 318 | +</body> |
| 319 | +</html> |
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