21018+4411
- Unique Name: 21018+4411HO 600
- RA: 21 01 47.44
- Dec: +44 11 13.6
- Discoverer: HO
- Discoverer Number: 600
- Components:
- First year: 1896
- Last year: 1970
- Observations: 6
- First position angle: 80
- Last position angle: 96
- First separation: 2.0
- Last separation: 1.9
- Mag first component: 6.7
- Mag second component: 10.9
- Spectral type: Am
- Primary proper motion RA: 23
- Primary proper motion DEC: -75
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +43 3789
- Notes: