21504-5818
- Unique Name: 21504-5818HDS3109
- RA: 21 50 23.73
- Dec: -58 18 17.4
- Discoverer: HDS
- Discoverer Number: 3109
- Components:
- First year: 1991
- Last year: 2012
- Observations: 5
- First position angle: 307
- Last position angle: 139
- First separation: 0.2
- Last separation: 0.0
- Mag first component: 8.56
- Mag second component: 9.07
- Spectral type: G6V
- Primary proper motion RA: 50
- Primary proper motion DEC: -94
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: -58 7901
- Notes: