21576+2440
- Unique Name: 21576+2440POU5589
- RA: 21 57 36.30
- Dec: +24 39 52.7
- Discoverer: POU
- Discoverer Number: 5589
- Components:
- First year: 1897
- Last year: 2009
- Observations: 4
- First position angle: 30
- Last position angle: 26
- First separation: 12.1
- Last separation: 13.1
- Mag first component: 11.9
- Mag second component: 13.1
- Spectral type:
- Primary proper motion RA: 3
- Primary proper motion DEC: -19
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: