21098+4624
- Unique Name: 21098+4624SMA 128
- RA: 21 09 46.42
- Dec: +46 23 37.5
- Discoverer: SMA
- Discoverer Number: 128
- Components:
- First year: 1893
- Last year: 2013
- Observations: 7
- First position angle: 169
- Last position angle: 170
- First separation: 12.2
- Last separation: 12.4
- Mag first component: 8.42
- Mag second component: 11.4
- Spectral type: B3IV
- Primary proper motion RA: -4
- Primary proper motion DEC: -4
- Secondary proper motion RA: -2
- Secondary proper motion DEC: -6
- Durchmusterung: +45 3430
- Notes: