21572-5105
- Unique Name: 21572-5105HJ 5309
- RA: 21 57 13.22
- Dec: -51 04 16.2
- Discoverer: HJ
- Discoverer Number: 5309
- Components:
- First year: 1834
- Last year: 1999
- Observations: 15
- First position angle: 349
- Last position angle: 349
- First separation: 5.0
- Last separation: 8.9
- Mag first component: 10.22
- Mag second component: 10.48
- Spectral type: F8
- Primary proper motion RA: 0
- Primary proper motion DEC: -14
- Secondary proper motion RA: 0
- Secondary proper motion DEC: -6
- Durchmusterung: -5113125
- Notes: