21590+4807
- Unique Name: 21590+4807COU2446
- RA: 21 58 58.47
- Dec: +48 06 54.6
- Discoverer: COU
- Discoverer Number: 2446
- Components:
- First year: 1986
- Last year: 2007
- Observations: 2
- First position angle: 59
- Last position angle: 56
- First separation: 0.4
- Last separation: 0.4
- Mag first component: 10.8
- Mag second component: 11.4
- Spectral type: A2
- Primary proper motion RA: 10
- Primary proper motion DEC: -1
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +47 3641
- Notes: