18239-2139
- Unique Name: 18239-2139BRT1536
- RA: 18 23 53.00
- Dec: -21 39 13.6
- Discoverer: BRT
- Discoverer Number: 1536
- Components:
- First year: 1920
- Last year: 1999
- Observations: 3
- First position angle: 69
- Last position angle: 71
- First separation: 3.3
- Last separation: 3.5
- Mag first component: 13.1
- Mag second component: 13.2
- Spectral type:
- Primary proper motion RA: -35
- Primary proper motion DEC: -5
- Secondary proper motion RA: 5
- Secondary proper motion DEC: -2
- Durchmusterung:
- Notes: