Ragna (惑星ラグナ) is a planet introduced in the Macross Δ television series and its theatrical adaptation, Macross Δ Movie: Passionate Walküre. It is home to the Delta Flight and Walküre. Ragna is approximately 30 light years from Al Shahal. The natives of the planet are the Ragnans, along with the amphibious Mercats, and a lot of jellyfish.
The planet Ragna is one of the many planets similar to Earth in environmental structure, home to the Ragnans as well as other sea creatures, some of which are amphibious in nature. In the beginning, there were not many landmasses around the planet.
An Emigrant fleet settled here some years later and altered the topography to a certain degree. It is unclear whether or not there were conflicts in between, but as seen in A.D. 2067, the Ragnans seem to have coexisted well enough with the emigrant citizens.
Ragnans are seafarers by nature. Many of their houses are made on ships. Their main cultural symbol is the jellyfish: The Barette Jellyfish is a popular delicacy that can be eaten cooked, raw, or even processed into jellyfish chips. The spicy version of the aforementioned snack is a sought-after limited seasonal item.
Their most common produce are Sea Apples, which are salty compared to Windermere Apples, but tasty in their own way. Bananas are often fermented into wine and is an exotic drink that goes well with a lot of food.
Aside from jellyfish, Mercats are seen everywhere in and out of water. There are numerous products made in their image, the most proliferated of which is the Mercat mobile phone which is available in several colors. 
One notable traditional Ragnan celebration in particular is the Jellyfish Festival. This event is held during the first full moon in September when jellyfish come to the surface to lay eggs. According to Ragnan belief, a couple who confesses their love to each other underneath the floating jellyfish swarm will stay together for life.
In death, there is a Ragnan practice of making a miniature ship for the soul of the person to ride on. The loved ones of the departed drink and reminisce on a nearby coast, later sending off the soul to sea with farewells. Once relieved of sin and pain, the soul is believed to be reborn as a jellyfish.
The original name of the main Immigration Fleet Island that settled on Ragna. Connected to the mainland by several bridges. Currently referred to as Barette City, the central city of Ragna.
Chaos Ragna Branch Annex
A building situated in close vicinity to the Macross Elysion. Home to the Chaos Music Division and has facilities for performance lessons and auditions. Its headquarters is accessible via a network of suspension rail cars.
A restaurant managed by Chuck Mustang's family specializing in standard Chinese fare fused with Ragnan delicacies. It also doubles as a dormitory for the male members of Delta Flight. Despite the naming convention, Ragnyannyan is actually an independently-run establishment and not connected in any way with the Nyan-Nyan franchise.
Notes & Trivia
- The name of the planet is presumably derived from "Laguna", which is the Spanish/Italian word for "Lagoon".