21117+2220
- Unique Name: 21117+2220BRT2492
- RA: 21 11 42.69
- Dec: +22 19 46.9
- Discoverer: BRT
- Discoverer Number: 2492
- Components:
- First year: 1892
- Last year: 2003
- Observations: 5
- First position angle: 337
- Last position angle: 337
- First separation: 4.9
- Last separation: 5.0
- Mag first component: 11.21
- Mag second component: 13.3
- Spectral type:
- Primary proper motion RA: 9
- Primary proper motion DEC: -1
- Secondary proper motion RA: -30
- Secondary proper motion DEC: 21
- Durchmusterung:
- Notes:
