21512+0321
- Unique Name: 21512+0321J 1724
- RA: 21 51 02.57
- Dec: +03 20 35.4
- Discoverer: J
- Discoverer Number: 1724
- Components:
- First year: 1910
- Last year: 2000
- Observations: 5
- First position angle: 25
- Last position angle: 25
- First separation: 5.7
- Last separation: 6.1
- Mag first component: 12.83
- Mag second component: 12.83
- Spectral type:
- Primary proper motion RA: -3
- Primary proper motion DEC: -10
- Secondary proper motion RA: 13
- Secondary proper motion DEC: 4
- Durchmusterung:
- Notes: N B
