Where I can find Oberon items? German/english

[Ryt1x]

Hey i want the Oberon blaupause but where i can find it ?
Many says on the earth other on pluto.

[Lucernam]

Neither. Blueprints for Oberon's parts have a chance to fall from any Eximus unit on any planet. When they drop they will shine with a purple beam of light. It will look like the picture below.

[The_Mustachio]

Oberon parts drop from Eximus units. So the best place to find them are higher level missions. The more Eximus units the better. If you can play the daily sorites, look out for the eximus stronghold condition. I can almost get a full set each time. 

[TrickshotMcGee]

I see you've got answers already, but I recommend a Survival mission. Later on, increasingly more Eximus enemies spawn in and give lots of drops. They also never stop coming and it's easier than a Sortie.

If you're confident in your skills, the Sorties are a good place to go, as someone mentioned above, but I dislike them. 

[(XBOX)DataStorm 8Bit]

If you want a disappointing warframe, go ahead and kill eximus enemies (the shiny annoying and tanky units)