21542+0459
- Unique Name: 21542+0459OSO 160AB
- RA: 21 54 11.34
- Dec: +04 58 44.8
- Discoverer: OSO
- Discoverer Number: 160
- Components: AB
- First year: 1994
- Last year: 2000
- Observations: 4
- First position angle: 321
- Last position angle: 316
- First separation: 12.9
- Last separation: 13.8
- Mag first component: 9.26
- Mag second component: 14.9
- Spectral type:
- Primary proper motion RA: 273
- Primary proper motion DEC: -15
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +04 4762
- Notes: N
