21487-3351
- Unique Name: 21487-3351RSS 564
- RA: 21 48 44.45
- Dec: -33 50 32.1
- Discoverer: RSS
- Discoverer Number: 564
- Components:
- First year: 1911
- Last year: 1998
- Observations: 10
- First position angle: 192
- Last position angle: 174
- First separation: 53.8
- Last separation: 57.1
- Mag first component: 10.01
- Mag second component: 10.17
- Spectral type: F2
- Primary proper motion RA: 16
- Primary proper motion DEC: 11
- Secondary proper motion RA: 202
- Secondary proper motion DEC: -35
- Durchmusterung: -3415265
- Notes: