20491+3640
- Unique Name: 20491+3640SEI1260
- RA: 20 49 03.83
- Dec: +36 40 40.3
- Discoverer: SEI
- Discoverer Number: 1260
- Components:
- First year: 1896
- Last year: 2002
- Observations: 5
- First position angle: 44
- Last position angle: 43
- First separation: 8.5
- Last separation: 7.6
- Mag first component: 11.16
- Mag second component: 10.9
- Spectral type:
- Primary proper motion RA: -7
- Primary proper motion DEC: -15
- Secondary proper motion RA: -10
- Secondary proper motion DEC: -11
- Durchmusterung: +36 4257
- Notes: N