21312+4013
- Unique Name: 21312+4013MLB 897
- RA: 21 31 14.07
- Dec: +40 12 30.8
- Discoverer: MLB
- Discoverer Number: 897
- Components:
- First year: 1933
- Last year: 2002
- Observations: 3
- First position angle: 27
- Last position angle: 24
- First separation: 4.3
- Last separation: 4.9
- Mag first component: 14.7
- Mag second component: 14.7
- Spectral type:
- Primary proper motion RA: 34
- Primary proper motion DEC: 87
- Secondary proper motion RA: 17
- Secondary proper motion DEC: 36
- Durchmusterung:
- Notes: