Kerbol Eclipse
From Kerbal Space Program Wiki
A Kerbol eclipse happens when the star Kerbol comes inline with the Mun effectively hiding Kerbol from Kerbals watching it.
Kerbol eclipses on other planets
It is theoretically possible to oobserve a Kerbol eclipse on other planets provided they have a moon or the planet itself is a moon a and its parent body is covering Kerbol.
Kerbol eclipses on Duna
Kerbol eclipses are the most common on Duna since its moon Ike is in a near synchronous orbit letting Kerbals observe a Kerbol eclipse every day.
A Kerbol eclipse visible on top of a rocket with Minmus being visible from the insde of the blue circle.
