21403-4424
- Unique Name: 21403-4424DON1013
- RA: 21 40 18.74
- Dec: -44 24 17.9
- Discoverer: DON
- Discoverer Number: 1013
- Components:
- First year: 1931
- Last year: 1991
- Observations: 6
- First position angle: 260
- Last position angle: 261
- First separation: 1.4
- Last separation: 1.7
- Mag first component: 9.03
- Mag second component: 12.29
- Spectral type: K1III
- Primary proper motion RA: 25
- Primary proper motion DEC: -11
- Secondary proper motion RA: 22
- Secondary proper motion DEC: -11
- Durchmusterung: -4414590
- Notes: