21123-0142
- Unique Name: 21123-0142LYS 37AC
- RA: 21 12 17.95
- Dec: -01 42 01.1
- Discoverer: LYS
- Discoverer Number: 37
- Components: AC
- First year: 1984
- Last year: 2013
- Observations: 5
- First position angle: 85
- Last position angle: 85
- First separation: 33.3
- Last separation: 33.2
- Mag first component: 11.47
- Mag second component: 13.42
- Spectral type:
- Primary proper motion RA: 2
- Primary proper motion DEC: -6
- Secondary proper motion RA: 43
- Secondary proper motion DEC: 12
- Durchmusterung:
- Notes: N
