21583+2440
- Unique Name: 21583+2440POU5592
- RA: 21 58 15.96
- Dec: +24 39 22.7
- Discoverer: POU
- Discoverer Number: 5592
- Components:
- First year: 1897
- Last year: 2009
- Observations: 4
- First position angle: 102
- Last position angle: 99
- First separation: 8.1
- Last separation: 9.2
- Mag first component: 11.6
- Mag second component: 12.9
- Spectral type:
- Primary proper motion RA: -12
- Primary proper motion DEC: -10
- Secondary proper motion RA: 3
- Secondary proper motion DEC: 0
- Durchmusterung:
- Notes: