The sector R-4 was a sector of the galaxy.
Around the time of the Third Galactic War between the Galactic Republic and the Sith Empire, shipping route disruption due to gravitational anomaly was reported in the sector. The Sith then discovered that a fragment of the Mass Shadow Generator that destroyed the planet Malachor V was present in the sector R-4. The Empire then built a secret research station to rebuild the superweapon. Eventually, the Mass Shadow Generator was destroyed when the Eternal Alliance assaulted the research station and defeated the Sith cult known as the Unmasked.
Around the time of the Third Galactic War between the Galactic Republic and the Sith Empire, shipping route disruption due to gravitational anomaly was reported in the sector. The Sith then discovered that a fragment of the Mass Shadow Generator that destroyed the planet Malachor V was present in the sector R-4. The Empire then built a secret research station to rebuild the superweapon. Eventually, the Mass Shadow Generator was destroyed when the Eternal Alliance assaulted the research station and defeated the Sith cult known as the Unmasked.