21154+3912
- Unique Name: 21154+3912MLB 894
- RA: 21 15 29.46
- Dec: +39 12 25.6
- Discoverer: MLB
- Discoverer Number: 894
- Components:
- First year: 1933
- Last year: 2002
- Observations: 5
- First position angle: 203
- Last position angle: 200
- First separation: 2.8
- Last separation: 3.1
- Mag first component: 10.0
- Mag second component: 10.2
- Spectral type:
- Primary proper motion RA: 5
- Primary proper motion DEC: -3
- Secondary proper motion RA: 3
- Secondary proper motion DEC: -10
- Durchmusterung:
- Notes: