20489+3919
- Unique Name: 20489+3919TDT2558
- RA: 20 48 54.30
- Dec: +39 18 56.4
- Discoverer: TDT
- Discoverer Number: 2558
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 191
- Last position angle: 191
- First separation: 1.1
- Last separation: 1.1
- Mag first component: 11.81
- Mag second component: 12.19
- Spectral type:
- Primary proper motion RA: 20
- Primary proper motion DEC: 15
- Secondary proper motion RA: 20
- Secondary proper motion DEC: 15
- Durchmusterung:
- Notes: