Whiting 1 is a faint and young globular cluster embedded in the Sagittarius stream. It was initially reported as an in-situ formed globular cluster in the galactic halo, however, its young age and moderately rich metallicity do not conform to our current understanding of typical galactic globular clusters.

A comparable age-metallicity relation as well as kinematics to that of the Sagittarius stream makes Whiting 1 a member of a rare class of objects. Astronomers are more inclined to believe Whiting 1 is a child of the Sagittarius dwarf galaxy.

Over the past few years, the fact that the Sagittarius dwarf galaxy can host globular clusters and contribute to the building up of the galactic halo has come to be believed. Regarding Whiting 1, it could be a cluster born in the Sagittarius dwarf galaxy that immigrated to our Galaxy along the Sagittarius stream by the galactic accretion. This is a good story about its origin, but the speculation needs to be confirmed.

The best way to explore the origin of Whiting 1 is to find relationship between the cluster and the Sagittarius dwarf galaxy. Past studies were mainly devoted to comparing cluster parameters to the Sagittarius dwarf galaxy, however, due to a lack of deeper data, there has been no new progress.