21561+6539
- Unique Name: 21561+6539HU 974
- RA: 21 56 06.27
- Dec: +65 39 26.4
- Discoverer: HU
- Discoverer Number: 974
- Components:
- First year: 1895
- Last year: 2003
- Observations: 9
- First position angle: 105
- Last position angle: 101
- First separation: 4.5
- Last separation: 4.6
- Mag first component: 9.26
- Mag second component: 12.7
- Spectral type: F0
- Primary proper motion RA: -11
- Primary proper motion DEC: -11
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +64 1608
- Notes: