21133+3743
- Unique Name: 21133+3743SMA 142
- RA: 21 13 17.53
- Dec: +37 40 50.3
- Discoverer: SMA
- Discoverer Number: 142
- Components:
- First year: 1923
- Last year: 2011
- Observations: 5
- First position angle: 175
- Last position angle: 176
- First separation: 12.3
- Last separation: 12.5
- Mag first component: 10.57
- Mag second component: 12.7
- Spectral type:
- Primary proper motion RA: 1
- Primary proper motion DEC: -2
- Secondary proper motion RA: 4
- Secondary proper motion DEC: -2
- Durchmusterung:
- Notes: