21178+5229
- Unique Name: 21178+5229SKF 346
- RA: 21 17 50.98
- Dec: +52 28 33.1
- Discoverer: SKF
- Discoverer Number: 346
- Components:
- First year: 1900
- Last year: 2003
- Observations: 8
- First position angle: 305
- Last position angle: 305
- First separation: 55.4
- Last separation: 55.8
- Mag first component: 7.66
- Mag second component: 11.11
- Spectral type: F2
- Primary proper motion RA: -15
- Primary proper motion DEC: -37
- Secondary proper motion RA: -17
- Secondary proper motion DEC: -37
- Durchmusterung: +51 3035
- Notes: V
