Kerbal Star Systems Wiki

Hal is a dwarf planet orbiting in the Trans-Naalian region. It's one of the biggest egg shaped objects known to kerbal scientists.

In-game Description

"Discovered as part of the effort to locate Planet 9 in the Trans-Naalian region of the Kerbol System, Hal is the smallest and oddest dwarf planet in its neighborhood. The dwarf planet itself maintains a stable ellipsoidal shape through its rapid rotation, which is thought to have been caused by a past collision with another Trans-Naalian object. Remnants of this ancient collision include the discolorations on the surface of Hal, as well as its small moon. Please not confuse this object with a red potato, as it is most certainly not edible."

Physical Characteristics

Hal is one of the lesser known dwarf planets, not being as well known as Kel or Dres. However, Hal is a very unique world. This is because Hal has a super fast rotation compared to most bodies, rotating fast enough to be seen without having to accelerate time. Scientists believe that in the past Hal once had a large moon, similar to Kel. Eventually, the moon crashed into the planet, likely forming the Methane Plains seen today. The other result of this impact is the rapid rotation experienced today, along with the moon Ud.


Another side effect of the ancient collision is the faint ring system around Hal. These rings aren't as magnificent as those around Voon, but it is used as proof that small rocky worlds are equally as likely to host rings as a large gas planet.


Hal has only 1 moon, Ud. Scientists believe that Ud formed as a result of the impact that caused Hal to rotate rapidly.


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  • Methane Ice Plains
  • Nitrogen Ice Plains
  • Impact Craters
  • Midlands
  • Ice