Vagra II
Vagra II was the formerly inhabited second planet of its star system. The planet was located in the Zed Lapis sector. Prior to 2364, little information on the planet was kept in the library computer, other than the fact of its existence. Sensors indicated no signs of lifeforms, virtually no vegetation, and the minimum atmosphere requirements for humanoids. 

A "race of s" once brought out from within themselves all evil and negative attributes that had bound them to destructiveness. As a by-product of this procedure, the unwanted substance spread and coalesced into a dank and vile second skin, Armus, a "skin of evil". The race rejected this malevolent sentient substance and abandoned it on Vagra II. 

In 2364, Armus threatened the crew of a  shuttlecraft that had crash landed on the surface. It also killed Lieutenant Natasha Yar, who was part of the away team assigned to recover them. After the crew of the Enterprise-D escaped, they destroyed the shuttle wreckage to trap Armus on the planet. Vagra II was subsequently placed under quarantine. ()

In 2367, Ishara Yar learned from Data that her sister had died on Vagra II. ()

In 2381, Ensign Beckett Mariner and Bradward Boimler used a submanifold casting stone so as to send a prank call to Vagra II in order to taunt Armus. ()

Appendices

Background information 
According to the script for "Skin of Evil", Vagra II was a planet in the Zed Lapis system and Vagra was pronounced as "VAY-GRA".  StarTrek.com describes Vagra II as a minimally M-class planet. 

According to , the species that created Armus was native to Vagra II.

The shot of Vagra II from orbit was first used to represent Aldea in .

Apocrypha 
In John Vornholt's  , Vagra II was the site where a scientist working aboard the Enterprise-D trapped a species of sub-microbe able to pass through the most advanced biofilter.

Planets of the UFP presents the  system, identifying Vagra II as Class H.

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