21556-2108
- Unique Name: 21556-2108HJ 3065AC
- RA: 21 55 38.39
- Dec: -21 08 23.6
- Discoverer: HJ
- Discoverer Number: 3065
- Components: AC
- First year: 1904
- Last year: 1999
- Observations: 6
- First position angle: 329
- Last position angle: 332
- First separation: 57.6
- Last separation: 65.7
- Mag first component: 7.34
- Mag second component: 11.44
- Spectral type: M3III
- Primary proper motion RA: -37
- Primary proper motion DEC: -30
- Secondary proper motion RA: 7
- Secondary proper motion DEC: -12
- Durchmusterung:
- Notes: