21428+6018
- Unique Name: 21428+6018HDS3093
- RA: 21 42 46.63
- Dec: +60 17 45.3
- Discoverer: HDS
- Discoverer Number: 3093
- Components:
- First year: 1991
- Last year: 2007
- Observations: 2
- First position angle: 282
- Last position angle: 267
- First separation: 0.1
- Last separation: 0.1
- Mag first component: 9.35
- Mag second component: 10.96
- Spectral type: B2V
- Primary proper motion RA: -3
- Primary proper motion DEC: -2
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +59 2412
- Notes: