21233+1520
- Unique Name: 21233+1520HEI 189
- RA: 21 23 20.83
- Dec: +15 20 41.5
- Discoverer: HEI
- Discoverer Number: 189
- Components:
- First year: 1981
- Last year: 1997
- Observations: 3
- First position angle: 49
- Last position angle: 48
- First separation: 0.4
- Last separation: 0.4
- Mag first component: 11.4
- Mag second component: 11.4
- Spectral type:
- Primary proper motion RA: -10
- Primary proper motion DEC: -11
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +14 4603
- Notes: