21281+0440
- Unique Name: 21281+0440HDS3056
- RA: 21 28 03.49
- Dec: +04 40 02.3
- Discoverer: HDS
- Discoverer Number: 3056
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 189
- Last position angle: 189
- First separation: 0.2
- Last separation: 0.2
- Mag first component: 10.22
- Mag second component: 10.4
- Spectral type: F2
- Primary proper motion RA: -29
- Primary proper motion DEC: -35
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +04 4679
- Notes: X
