21129+2330
- Unique Name: 21129+2330POU5254AD
- RA: 21 12 50.48
- Dec: +23 29 40.6
- Discoverer: POU
- Discoverer Number: 5254
- Components: AD
- First year: 1898
- Last year: 2009
- Observations: 4
- First position angle: 220
- Last position angle: 218
- First separation: 30.5
- Last separation: 30.9
- Mag first component: 12.6
- Mag second component: 13.4
- Spectral type:
- Primary proper motion RA: -56
- Primary proper motion DEC: 137
- Secondary proper motion RA: -42
- Secondary proper motion DEC: -22
- Durchmusterung:
- Notes: