21231+3144
- Unique Name: 21231+3144DAM 229AC
- RA: 21 23 07.06
- Dec: +31 43 36.6
- Discoverer: DAM
- Discoverer Number: 229
- Components: AC
- First year: 1893
- Last year: 2002
- Observations: 4
- First position angle: 15
- Last position angle: 21
- First separation: 15.8
- Last separation: 14.5
- Mag first component: 9.3
- Mag second component: 11.7
- Spectral type: M0
- Primary proper motion RA: -4
- Primary proper motion DEC: -12
- Secondary proper motion RA: 5
- Secondary proper motion DEC: -26
- Durchmusterung:
- Notes: