21506+2216
- Unique Name: 21506+2216HO 467AC
- RA: 21 50 37.14
- Dec: +22 15 31.0
- Discoverer: HO
- Discoverer Number: 467
- Components: AC
- First year: 1892
- Last year: 2001
- Observations: 5
- First position angle: 339
- Last position angle: 334
- First separation: 39.6
- Last separation: 41.6
- Mag first component: 8.1
- Mag second component: 12.0
- Spectral type: K2
- Primary proper motion RA: 22
- Primary proper motion DEC: -9
- Secondary proper motion RA: -36
- Secondary proper motion DEC: 7
- Durchmusterung:
- Notes: