The Mekoria Quasar was a quasar with a high level of energy emissions. In this quasar, there was a protostar with accelerating core gases.
In 2370, Captain Jean-Luc Picard received a priority one message from Admiral Blackwell inquiring as to the status of the energy output of the Mekoria Quasar. (TNG: "The Pegasus")
The spelling of the name of the quasar comes from the script of the episode. A PADD for sale during It's A Wrap! sale and auction showed the name of the quasar as "Mecoria Quasar".