21454+4356
- Unique Name: 21454+4356HO 168AC
- RA: 21 45 24.12
- Dec: +43 56 08.1
- Discoverer: HO
- Discoverer Number: 168
- Components: AC
- First year: 1905
- Last year: 2002
- Observations: 3
- First position angle: 267
- Last position angle: 268
- First separation: 17.7
- Last separation: 18.3
- Mag first component: 9.46
- Mag second component: 14.2
- Spectral type: K0
- Primary proper motion RA: 68
- Primary proper motion DEC: 8
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: