21566+0633
- Unique Name: 21566+0633HU 381
- RA: 21 56 33.16
- Dec: +06 32 30.8
- Discoverer: HU
- Discoverer Number: 381
- Components:
- First year: 1901
- Last year: 2009
- Observations: 10
- First position angle: 42
- Last position angle: 232
- First separation: 0.5
- Last separation: 0.2
- Mag first component: 10.4
- Mag second component: 10.5
- Spectral type: F2
- Primary proper motion RA: -4
- Primary proper motion DEC: -8
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +05 4903
- Notes: