21018+3916
- Unique Name: 21018+3916STF2746
- RA: 21 01 50.05
- Dec: +39 15 38.4
- Discoverer: STF
- Discoverer Number: 2746
- Components:
- First year: 1830
- Last year: 2011
- Observations: 132
- First position angle: 276
- Last position angle: 322
- First separation: 0.9
- Last separation: 1.2
- Mag first component: 7.92
- Mag second component: 8.71
- Spectral type: F0
- Primary proper motion RA: -14
- Primary proper motion DEC: -25
- Secondary proper motion RA: -14
- Secondary proper motion DEC: -25
- Durchmusterung: +38 4318
- Notes: