21218-5428
- Unique Name: 21218-5428UC 4458
- RA: 21 21 45.59
- Dec: -54 27 39.5
- Discoverer: UC
- Discoverer Number: 4458
- Components:
- First year: 1998
- Last year: 2000
- Observations: 2
- First position angle: 171
- Last position angle: 171
- First separation: 11.6
- Last separation: 11.4
- Mag first component: 13.1
- Mag second component: 16.2
- Spectral type:
- Primary proper motion RA: 80
- Primary proper motion DEC: -17
- Secondary proper motion RA: 84
- Secondary proper motion DEC: -20
- Durchmusterung:
- Notes: V