21202+4509
- Unique Name: 21202+4509LDS2510
- RA: 21 20 16.35
- Dec: +45 10 29.5
- Discoverer: LDS
- Discoverer Number: 2510
- Components:
- First year: 1954
- Last year: 2000
- Observations: 3
- First position angle: 340
- Last position angle: 345
- First separation: 21.0
- Last separation: 20.4
- Mag first component: 13.3
- Mag second component: 18.5
- Spectral type:
- Primary proper motion RA: 132
- Primary proper motion DEC: 15
- Secondary proper motion RA: 126
- Secondary proper motion DEC: 16
- Durchmusterung:
- Notes: