12154+4008
- Unique Name: 12154+4008A 1999
- RA: 12 15 26.22
- Dec: +40 07 41.1
- Discoverer: A
- Discoverer Number: 1999
- Components:
- First year: 1909
- Last year: 2009
- Observations: 23
- First position angle: 312
- Last position angle: 62
- First separation: 0.8
- Last separation: 0.3
- Mag first component: 9.09
- Mag second component: 11.33
- Spectral type: G9IV
- Primary proper motion RA: -177
- Primary proper motion DEC: 38
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +40 2514
- Notes: O
