21345+5545
- Unique Name: 21345+5545STI2572
- RA: 21 34 27.75
- Dec: +55 44 50.3
- Discoverer: STI
- Discoverer Number: 2572
- Components:
- First year: 1903
- Last year: 2011
- Observations: 4
- First position angle: 243
- Last position angle: 245
- First separation: 12.5
- Last separation: 12.9
- Mag first component: 11.56
- Mag second component: 12.6
- Spectral type:
- Primary proper motion RA: -2
- Primary proper motion DEC: -2
- Secondary proper motion RA: -2
- Secondary proper motion DEC: 0
- Durchmusterung:
- Notes: