12540+5558
- Unique Name: 12540+5558BLM 2
- RA: 12 54 01.63
- Dec: +55 57 35.4
- Discoverer: BLM
- Discoverer Number: 2
- Components:
- First year: 1975
- Last year: 2002
- Observations: 2
- First position angle: 95
- Last position angle: 60
- First separation: 0.1
- Last separation: 0.1
- Mag first component: 1.77
- Mag second component: 0.0
- Spectral type: A0p
- Primary proper motion RA: 112
- Primary proper motion DEC: -6
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +56 1627
- Notes: N
