21542-3802
- Unique Name: 21542-3802B 543
- RA: 21 54 09.35
- Dec: -38 02 19.6
- Discoverer: B
- Discoverer Number: 543
- Components:
- First year: 1927
- Last year: 2000
- Observations: 4
- First position angle: 242
- Last position angle: 268
- First separation: 2.6
- Last separation: 5.1
- Mag first component: 9.61
- Mag second component: 12.6
- Spectral type: F6V
- Primary proper motion RA: 8
- Primary proper motion DEC: 13
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: -3814780
- Notes: