20390+4109
- Unique Name: 20390+4109TDT2451
- RA: 20 39 00.13
- Dec: +41 09 21.4
- Discoverer: TDT
- Discoverer Number: 2451
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 121
- Last position angle: 121
- First separation: 0.8
- Last separation: 0.8
- Mag first component: 11.52
- Mag second component: 11.75
- Spectral type:
- Primary proper motion RA: -6
- Primary proper motion DEC: -19
- Secondary proper motion RA: -6
- Secondary proper motion DEC: -19
- Durchmusterung:
- Notes: