21091+0429
- Unique Name: 21091+0429J 848
- RA: 21 09 07.73
- Dec: +04 28 57.1
- Discoverer: J
- Discoverer Number: 848
- Components:
- First year: 1912
- Last year: 1998
- Observations: 9
- First position angle: 150
- Last position angle: 145
- First separation: 2.0
- Last separation: 2.6
- Mag first component: 10.23
- Mag second component: 13.0
- Spectral type: F8
- Primary proper motion RA: 5
- Primary proper motion DEC: -9
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +03 4508
- Notes: