12123-5504
- Unique Name: 12123-5504RST2785
- RA: 12 12 23.67
- Dec: -55 04 39.8
- Discoverer: RST
- Discoverer Number: 2785
- Components:
- First year: 1935
- Last year: 2000
- Observations: 4
- First position angle: 306
- Last position angle: 307
- First separation: 4.5
- Last separation: 4.7
- Mag first component: 10.23
- Mag second component: 12.0
- Spectral type: A3III/IV
- Primary proper motion RA: 8
- Primary proper motion DEC: -22
- Secondary proper motion RA: -36
- Secondary proper motion DEC: 45
- Durchmusterung: -54 5041
- Notes: