Starlink For Planets and Moons of The Solar System - How Many Are Enough For A Full Coverage
We will take as a base count the Earth Starlink satellites for a full coverage - 1500 satellites. They are flying at an altitude of about 550 km. The Earth's radius is 6371 km. So full radius of the Starlink satellites sphere is 6871 km. The Square of this sphere is 601932181 km2. So it's 1 satellite per 401 288 km2. Now we can calculate in ballpark how many satellites there will be needed for any other body of the Solar system.
Solar System Body | Radius, km2 | RadiusPlusStarlinkAltitude, km2 | Shere square, km2 | Satellites count |
Moon | 1737 | 2287 | 65726756 | 164 |
Jupiter | 69911 | 70461 | 62388920188 | 155472 |
Saturn | 58232 | 58782 | 43420875996 | 108204 |
Uranus | 25362 | 25912 | 8437460138 | 21026 |
Neptune | 24622 | 25172 | 7962424185 | 19843 |
Venus | 6052 | 6602 | 547722907 | 1365 |
Mars | 3389 | 3939 | 194976301 | 486 |
Ganymede | 2634 | 3184 | 127396056 | 318 |
Titan | 2574 | 3124 | 122639936 | 306 |
Mercury | 2439 | 2989 | 112269476 | 280 |
Callisto | 2410 | 2960 | 110101513 | 275 |
Io | 1821 | 2371 | 70643625 | 177 |
Europa | 1560 | 2110 | 55946739 | 140 |
Triton | 1353 | 1903 | 45507968 | 114 |
Pluto | 1188 | 1738 | 37958532 | 95 |
Eris | 1163 | 1713 | 36874369 | 92 |
Haumea | 798 | 1348 | 22834403 | 57 |
Titania | 788 | 1338 | 22496870 | 57 |
Rhea | 763 | 1313 | 21664034 | 54 |
Oberon | 761 | 1311 | 21598086 | 54 |
Iapetus | 735 | 1285 | 20749906 | 52 |
Makemake | 715 | 1265 | 20109021 | 51 |
Gonggong | 615 | 1165 | 17055393 | 43 |
Charon | 606 | 1156 | 16792894 | 42 |
Umbriel | 584 | 1134 | 16159800 | 41 |
Ariel | 578 | 1128 | 15989249 | 40 |
Dione | 561 | 1111 | 15510936 | 39 |
Quaoar | 560 | 1110 | 15483026 | 39 |
Tethys | 533 | 1083 | 14738958 | 37 |
Sedna | 498 | 1048 | 13801696 | 35 |
Ceres | 469 | 1019 | 13048430 | 33 |
Orcus | 458 | 1008 | 12768237 | 32 |
Salacia | 423 | 973 | 11896948 | 30 |