21242-1253
- Unique Name: 21242-1253HJ 5517
- RA: 21 24 11.44
- Dec: -12 52 41.3
- Discoverer: HJ
- Discoverer Number: 5517
- Components:
- First year: 1877
- Last year: 2000
- Observations: 4
- First position angle: 326
- Last position angle: 312
- First separation: 47.8
- Last separation: 50.7
- Mag first component: 5.49
- Mag second component: 13.0
- Spectral type: F1V
- Primary proper motion RA: 90
- Primary proper motion DEC: 9
- Secondary proper motion RA: 18
- Secondary proper motion DEC: -27
- Durchmusterung: -13 5923
- Notes: N