02181+5731
- Unique Name: 02181+5731BU 1170BC
- RA: 02 18 04.12
- Dec: +57 32 07.4
- Discoverer: BU
- Discoverer Number: 1170
- Components: BC
- First year: 1890
- Last year: 1958
- Observations: 4
- First position angle: 313
- Last position angle: 313
- First separation: 0.3
- Last separation: 0.3
- Mag first component: 11.5
- Mag second component: 11.7
- Spectral type:
- Primary proper motion RA: 28
- Primary proper motion DEC: -12
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +56 486
- Notes: N