21215+4002
- Unique Name: 21215+4002SEI1511
- RA: 21 21 33.35
- Dec: +40 01 11.0
- Discoverer: SEI
- Discoverer Number: 1511
- Components:
- First year: 1895
- Last year: 2002
- Observations: 5
- First position angle: 280
- Last position angle: 282
- First separation: 29.5
- Last separation: 28.6
- Mag first component: 11.24
- Mag second component: 11.86
- Spectral type:
- Primary proper motion RA: 1
- Primary proper motion DEC: -1
- Secondary proper motion RA: 12
- Secondary proper motion DEC: 11
- Durchmusterung:
- Notes: