21155+3719
- Unique Name: 21155+3719MLB 424AB
- RA: 21 15 30.24
- Dec: +37 19 19.7
- Discoverer: MLB
- Discoverer Number: 424
- Components: AB
- First year: 1925
- Last year: 2006
- Observations: 11
- First position angle: 65
- Last position angle: 58
- First separation: 3.7
- Last separation: 4.9
- Mag first component: 10.74
- Mag second component: 12.2
- Spectral type:
- Primary proper motion RA: -22
- Primary proper motion DEC: -14
- Secondary proper motion RA: 13
- Secondary proper motion DEC: -12
- Durchmusterung:
- Notes:
