21421+4414
- Unique Name: 21421+4414A 403
- RA: 21 42 08.42
- Dec: +44 13 34.4
- Discoverer: A
- Discoverer Number: 403
- Components:
- First year: 1902
- Last year: 2009
- Observations: 11
- First position angle: 79
- Last position angle: 78
- First separation: 0.4
- Last separation: 0.5
- Mag first component: 10.09
- Mag second component: 9.92
- Spectral type: F2
- Primary proper motion RA: -2
- Primary proper motion DEC: -7
- Secondary proper motion RA: -2
- Secondary proper motion DEC: -7
- Durchmusterung: +43 4017
- Notes: