21528+2458
- Unique Name: 21528+2458POU5542AB
- RA: 21 52 48.14
- Dec: +24 58 41.2
- Discoverer: POU
- Discoverer Number: 5542
- Components: AB
- First year: 1898
- Last year: 2001
- Observations: 3
- First position angle: 177
- Last position angle: 181
- First separation: 10.6
- Last separation: 10.5
- Mag first component: 14.39
- Mag second component: 14.3
- Spectral type:
- Primary proper motion RA: 11
- Primary proper motion DEC: -22
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: