21456-3451
- Unique Name: 21456-3451HDS3099
- RA: 21 45 38.47
- Dec: -34 50 47.2
- Discoverer: HDS
- Discoverer Number: 3099
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 42
- Last position angle: 42
- First separation: 0.2
- Last separation: 0.2
- Mag first component: 10.02
- Mag second component: 12.16
- Spectral type: F5
- Primary proper motion RA: 108
- Primary proper motion DEC: 14
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: -3514946
- Notes: