21571+2509
- Unique Name: 21571+2509POU5582
- RA: 21 57 07.13
- Dec: +25 08 47.3
- Discoverer: POU
- Discoverer Number: 5582
- Components:
- First year: 1897
- Last year: 2009
- Observations: 4
- First position angle: 25
- Last position angle: 338
- First separation: 7.8
- Last separation: 7.7
- Mag first component: 13.4
- Mag second component: 13.4
- Spectral type:
- Primary proper motion RA: 0
- Primary proper motion DEC: -11
- Secondary proper motion RA: -66
- Secondary proper motion DEC: 42
- Durchmusterung:
- Notes: