21237-3947
- Unique Name: 21237-3947SKF1173
- RA: 21 23 40.56
- Dec: -39 46 43.7
- Discoverer: SKF
- Discoverer Number: 1173
- Components:
- First year: 1880
- Last year: 2010
- Observations: 6
- First position angle: 153
- Last position angle: 153
- First separation: 95.0
- Last separation: 94.3
- Mag first component: 7.5
- Mag second component: 8.9
- Spectral type: F3IV+F6V
- Primary proper motion RA: 40
- Primary proper motion DEC: -41
- Secondary proper motion RA: 40
- Secondary proper motion DEC: -43
- Durchmusterung:
- Notes: V