21091+3822
- Unique Name: 21091+3822SEI1417
- RA: 21 09 05.34
- Dec: +38 22 38.8
- Discoverer: SEI
- Discoverer Number: 1417
- Components:
- First year: 1895
- Last year: 2002
- Observations: 5
- First position angle: 130
- Last position angle: 139
- First separation: 29.3
- Last separation: 31.1
- Mag first component: 12.25
- Mag second component: 12.15
- Spectral type:
- Primary proper motion RA: 21
- Primary proper motion DEC: 48
- Secondary proper motion RA: -3
- Secondary proper motion DEC: 7
- Durchmusterung:
- Notes: