Alderaan

Alderaan was an inhabited planet. The planet was home to the Alderaan Spaceport.

In 2365, the Federation starships USS Atlantis and NCC-21335 were on diplomatic missions to this planet. It was listed in the chart Starship Deploy Status, which was seen in the Starbase 173 courtroom. (, okudagram)

In 2369, a transport heading for Deep Space 9 departed from the Alderaan Spaceport. The Bajoran criminal Ibudan was a passenger on this transport. (, okudagram)

Background information
The name of this planet originally also appeared in, on an okudagram on Picard's desk monitor as the destination of HMS New Zealand in 2135. A legible version of the original okudagram appeared in the reference book, Star Trek: The Next Generation - The Continuing Mission.

In the remastered version of the episode, the planet was renamed as Aldebaran. The reference to this planet, as well as the wording of several okudagrams, was an in-joke. Alderaan was, of course, the adopted homeworld of Star Wars' Princess Leia, who claimed to be on a diplomatic mission to Alderaan when captured by Darth Vader in the opening scene of Star Wars Episode IV: A New Hope.

According to the reference book, in the "A" section of the locations index, this planet was listed as "Never visited by the crew of the USS Enterprise (NCC-1701-D)."