| |
| | Posidonius Lunar Ray |
 | | Posidonius +419,+526 - A majestic ring, 62 miles in diameter, with low and narrow walls, rising at their highest point 6,000 feet about the light interior and broad on the west, but especially narrow on the east, where they rapidly thin and end in a distinct break. |
 | | To the southeast of Posidonius is a large, ancient ring, from the south-east of which a strong mountain ridge runs, in a somewhat serpentine fashion, southwards across the mare Serenitatis. |
 | | Of the craters connected with Posidonius, Arthur found that J has a hill on the southwest part of its floor and a ridge on the inner north and east. |
| www.lunar-occultations.com /rlo/rays/posidonius.htm (877 words) |
|