21503+7410
- Unique Name: 21503+7410UC 4578AC
- RA: 21 50 19.43
- Dec: +74 09 36.3
- Discoverer: UC
- Discoverer Number: 4578
- Components: AC
- First year: 2000
- Last year: 2003
- Observations: 2
- First position angle: 120
- Last position angle: 120
- First separation: 51.2
- Last separation: 51.1
- Mag first component: 15.05
- Mag second component: 16.6
- Spectral type:
- Primary proper motion RA: -10
- Primary proper motion DEC: 97
- Secondary proper motion RA: -5
- Secondary proper motion DEC: 95
- Durchmusterung:
- Notes: V
