21133+3100
- Unique Name: 21133+3100BRT 286
- RA: 21 13 17.44
- Dec: +30 59 32.7
- Discoverer: BRT
- Discoverer Number: 286
- Components:
- First year: 1900
- Last year: 2000
- Observations: 3
- First position angle: 210
- Last position angle: 247
- First separation: 3.5
- Last separation: 6.2
- Mag first component: 12.91
- Mag second component: 13.09
- Spectral type:
- Primary proper motion RA: 27
- Primary proper motion DEC: -21
- Secondary proper motion RA: -12
- Secondary proper motion DEC: -16
- Durchmusterung:
- Notes: B
