21453+2722
- Unique Name: 21453+2722HO 606
- RA: 21 45 18.05
- Dec: +27 21 41.0
- Discoverer: HO
- Discoverer Number: 606
- Components:
- First year: 1895
- Last year: 2008
- Observations: 6
- First position angle: 90
- Last position angle: 93
- First separation: 16.2
- Last separation: 18.3
- Mag first component: 8.41
- Mag second component: 13.78
- Spectral type: G9III-IV
- Primary proper motion RA: 2
- Primary proper motion DEC: -3
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +26 4256
- Notes: