21178+4302
- Unique Name: 21178+4302A 616
- RA: 21 17 46.28
- Dec: +43 02 02.0
- Discoverer: A
- Discoverer Number: 616
- Components:
- First year: 1903
- Last year: 2009
- Observations: 13
- First position angle: 317
- Last position angle: 316
- First separation: 2.5
- Last separation: 2.7
- Mag first component: 9.5
- Mag second component: 11.0
- Spectral type: A2
- Primary proper motion RA: 11
- Primary proper motion DEC: -14
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +42 4048
- Notes: