21454+4356
- Unique Name: 21454+4356HO 168AE
- RA: 21 45 24.12
- Dec: +43 56 08.1
- Discoverer: HO
- Discoverer Number: 168
- Components: AE
- First year: 1906
- Last year: 2013
- Observations: 4
- First position angle: 35
- Last position angle: 20
- First separation: 32.8
- Last separation: 28.3
- 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: 3
- Secondary proper motion DEC: 2
- Durchmusterung:
- Notes: