20397+3644
- Unique Name: 20397+3644SEI1209
- RA: 20 39 44.97
- Dec: +36 43 57.5
- Discoverer: SEI
- Discoverer Number: 1209
- Components:
- First year: 1896
- Last year: 2002
- Observations: 6
- First position angle: 15
- Last position angle: 15
- First separation: 20.9
- Last separation: 21.3
- Mag first component: 11.43
- Mag second component: 11.8
- Spectral type:
- Primary proper motion RA: 1
- Primary proper motion DEC: -13
- Secondary proper motion RA: 4
- Secondary proper motion DEC: -8
- Durchmusterung:
- Notes: