21166-2746
- Unique Name: 21166-2746BRT3100
- RA: 21 16 35.25
- Dec: -27 45 53.0
- Discoverer: BRT
- Discoverer Number: 3100
- Components:
- First year: 1913
- Last year: 1999
- Observations: 3
- First position angle: 219
- Last position angle: 172
- First separation: 2.7
- Last separation: 6.0
- Mag first component: 10.63
- Mag second component: 12.01
- Spectral type: K7V
- Primary proper motion RA: -29
- Primary proper motion DEC: 68
- Secondary proper motion RA: -4
- Secondary proper motion DEC: -117
- Durchmusterung: -2817203
- Notes: