- You may also be looking for the Armus.
Armus IX was the ninth planet of the Armus planetary system.
On a mission to this planet in the early 2360s, William Riker had to wear a costume decorated with feathers during a diplomatic conference. In 2364, Riker referenced this event in a conversation with Natasha Yar and Deanna Troi in his preparations for his meeting with Beata, the Elected One of Angel I, on the lengths to which he would go to meet local customs. (TNG: "Angel One")
The year was not specified in the dialog. It may have occurred prior to or in the year 2364.
The planet might have been named after TNG writer Burton Armus.