21209+2455
- Unique Name: 21209+2455UC 4448
- RA: 21 20 54.56
- Dec: +24 55 25.8
- Discoverer: UC
- Discoverer Number: 4448
- Components:
- First year: 1997
- Last year: 2001
- Observations: 2
- First position angle: 196
- Last position angle: 196
- First separation: 30.2
- Last separation: 30.1
- Mag first component: 16.3
- Mag second component: 16.3
- Spectral type:
- Primary proper motion RA: -54
- Primary proper motion DEC: 20
- Secondary proper motion RA: -61
- Secondary proper motion DEC: 52
- Durchmusterung:
- Notes: V
