21129-6407
- Unique Name: 21129-6407RSS 555
- RA: 21 12 52.86
- Dec: -64 07 14.8
- Discoverer: RSS
- Discoverer Number: 555
- Components:
- First year: 1892
- Last year: 2000
- Observations: 5
- First position angle: 102
- Last position angle: 96
- First separation: 12.2
- Last separation: 8.8
- Mag first component: 8.42
- Mag second component: 12.0
- Spectral type: K1III
- Primary proper motion RA: 23
- Primary proper motion DEC: 1
- Secondary proper motion RA: -4
- Secondary proper motion DEC: 6
- Durchmusterung: -64 4104
- Notes: