21571-3847
- Unique Name: 21571-3847RST2189
- RA: 21 57 07.82
- Dec: -38 47 15.5
- Discoverer: RST
- Discoverer Number: 2189
- Components:
- First year: 1934
- Last year: 1945
- Observations: 2
- First position angle: 203
- Last position angle: 201
- First separation: 0.8
- Last separation: 0.8
- Mag first component: 10.2
- Mag second component: 11.6
- Spectral type:
- Primary proper motion RA: 90
- Primary proper motion DEC: -71
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: -3914493
- Notes: