21165+4554
- Unique Name: 21165+4554HDS3027
- RA: 21 16 31.73
- Dec: +45 54 27.9
- Discoverer: HDS
- Discoverer Number: 3027
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 51
- Last position angle: 51
- First separation: 0.4
- Last separation: 0.4
- Mag first component: 10.3
- Mag second component: 12.79
- Spectral type: B8
- Primary proper motion RA: 0
- Primary proper motion DEC: -3
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +45 3479
- Notes: