21579+1231
- Unique Name: 21579+1231SLW1257
- RA: 21 57 52.92
- Dec: +12 31 23.7
- Discoverer: SLW
- Discoverer Number: 1257
- Components:
- First year: 1998
- Last year: 2001
- Observations: 2
- First position angle: 237
- Last position angle: 237
- First separation: 138.4
- Last separation: 138.3
- Mag first component: 17.67
- Mag second component: 18.42
- Spectral type: M2.4 M2.8
- Primary proper motion RA: -24
- Primary proper motion DEC: -31
- Secondary proper motion RA: -27
- Secondary proper motion DEC: -33
- Durchmusterung:
- Notes: V R
