21145+4542
- Unique Name: 21145+4542COU2436
- RA: 21 14 29.58
- Dec: +45 41 46.4
- Discoverer: COU
- Discoverer Number: 2436
- Components:
- First year: 1986
- Last year: 2000
- Observations: 3
- First position angle: 254
- Last position angle: 267
- First separation: 1.1
- Last separation: 4.8
- Mag first component: 10.56
- Mag second component: 13.6
- Spectral type:
- Primary proper motion RA: -6
- Primary proper motion DEC: -2
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +45 3462
- Notes: