21176+2915
- Unique Name: 21176+2915COU 835AB
- RA: 21 17 36.32
- Dec: +29 14 55.3
- Discoverer: COU
- Discoverer Number: 835
- Components: AB
- First year: 1972
- Last year: 2007
- Observations: 4
- First position angle: 64
- Last position angle: 238
- First separation: 0.2
- Last separation: 0.4
- Mag first component: 9.5
- Mag second component: 9.5
- Spectral type: A0
- Primary proper motion RA: 6
- Primary proper motion DEC: 0
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +28 4044
- Notes: