| Feature Name | Latitude | Longitude | Diameter (km) | Origin |
|---|
| Accolon | -65.7 | 175.3 | | Companion of Arthur's; he was tricked into jousting with Arthur. |
| Arthur | -33.2 | 164.4 | | King of the Round Table Assemblage. |
| Balin | 17.1 | -86.8 | | Knight of "matchless courage and virtue." |
| Ban | 39.2 | -156.4 | | King of Benwick; father of Sir Launcelot, ally of Arthur in the battle of Bedgrayne. |
| Bedivere | 9.5 | -152.3 | | Arthurian knight. |
| Bors | 39 | -166 | | King of Gaul; father of Sir Ector de Marys, Sir Bors, Sir Lyonel. |
| Dynas | 3.8 | -82.9 | | A knight of the Round Table. |
| Elaine | 44.5 | -108.2 | | Daughter of King Pelles, lover of Sir Launcelot and mother, by him, of Sir Galahad. |
| Gaheris | -40.9 | 61.6 | | Older son of King Lot; killed by Sir Launcelot in his rescue of Gwynevere from burning. |
| Galahad | -47 | -135 | | Bastard son of Launcelot and Elaine. He went on the quest to find the Holy Grail. |
| Gareth | -40.9 | 71.2 | | Youngest son of King Lot; killed by Sir Launcelot in his rescue of Gwynevere from burning. |
| Gawain | -58.4 | 99.4 | | Eldest son of King Lot; Arthur's favorite cousin. |
| Gwynevere | -16.8 | 36 | | Queen; wife of Arthur; lover of Launcelot. |
| Herschel | 2.9 | -109.5 | | William; German-British astronomer; discovered Mimas and Enceladus (1738-1822). |
| Igraine | -42.1 | 128.9 | | Wife of Uther; mother of Arthur. |
| Iseult | -46.4 | -36.4 | | Loved by Tristram. |
| Kay | 47 | -126.4 | | Royal seneschel at Arthur's court. |
| Lamerok | -61.3 | 68.6 | | Pellinore's son; sent testing horn to King Mark to expose adultery of Sir Tristram. |
| Launcelot | -10 | 31.8 | | King Arthur's favorite; champion and lover of Queen Gwynevere. |
| Lot | -31.1 | 128.4 | | Leader of the rebel kings of the north and west. Married Margawse and begat Sir Gawain, Sir Aggravayne, Sir Gaheris. |
| Mark | -29.7 | 59.9 | | King of Cornwall. |
| Merlin | -37.7 | 140.5 | | Magician and prophet; son of the devil; Arthur's mentor. |
| Modred | 5 | 147 | | Arthur's bastard son and mortal enemy; delivered fatal wound to Arthur but was killed by him. |
| Morgan | 23.6 | 117.4 | | Arthur's half sister; enchantress; plotted to destroy Arthur but failed. |
| Palomides | 4.1 | -168.5 | | Saracen enemy of Tristam. (IAU-defined longitude is 162 degrees.) |
| Pellinore | 29.5 | -139.5 | | King whose duty was to pursue the questing beast and either run it to earth or lose his strength. |
| Percivale | -1 | 179.8 | | Very pure knight; accomplished quest of Holy Grail. |
| Tristram | -52.2 | -28.1 | | Saved Iseult; fell in love with her. |
| Uther | -34.9 | 108.9 | | Ruler of all Britain; Arthur's father. |
