21211-1811
- Unique Name: 21211-1811UC 4453
- RA: 21 21 08.35
- Dec: -18 11 23.3
- Discoverer: UC
- Discoverer Number: 4453
- Components:
- First year: 1998
- Last year: 1999
- Observations: 2
- First position angle: 293
- Last position angle: 294
- First separation: 18.2
- Last separation: 18.2
- Mag first component: 11.8
- Mag second component: 14.4
- Spectral type:
- Primary proper motion RA: 58
- Primary proper motion DEC: 30
- Secondary proper motion RA: 51
- Secondary proper motion DEC: 30
- Durchmusterung:
- Notes: V