21084+5118
- Unique Name: 21084+5118COU2693
- RA: 21 08 21.97
- Dec: +51 16 57.1
- Discoverer: COU
- Discoverer Number: 2693
- Components:
- First year: 1991
- Last year: 1992
- Observations: 2
- First position angle: 138
- Last position angle: 126
- First separation: 0.5
- Last separation: 0.5
- Mag first component: 11.21
- Mag second component: 11.17
- Spectral type: F5:
- Primary proper motion RA: 18
- Primary proper motion DEC: 7
- Secondary proper motion RA: 18
- Secondary proper motion DEC: 7
- Durchmusterung: +50 3270
- Notes: