Margor

The tenth planet of the Jesenreth Crystal Sphere, Margor is a small, airless, low-gravity terrestrial world usually avoided by spelljammers as it is home to the mysterious Obelisks of Time, six towering gray stone pillars which appear blurry and indistinct, out of focus. Anyone who has touched them has disappeared permanently, and it is theorized that the Obelisks are moving backwards in time. Magic cannot effect them, and where those who touch them go is unknown.

Margor has a circumference of 9,817 miles.