21247-3458
- Unique Name: 21247-3458B 528
- RA: 21 24 39.78
- Dec: -34 58 03.0
- Discoverer: B
- Discoverer Number: 528
- Components:
- First year: 1912
- Last year: 1933
- Observations: 3
- First position angle: 171
- Last position angle: 170
- First separation: 6.7
- Last separation: 6.8
- Mag first component: 7.0
- Mag second component: 13.0
- Spectral type: K1III
- Primary proper motion RA: 9
- Primary proper motion DEC: -19
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: -3514761
- Notes: