21156+3314
- Unique Name: 21156+3314GYL 51
- RA: 21 15 32.50
- Dec: +33 14 00.7
- Discoverer: GYL
- Discoverer Number: 51
- Components:
- First year: 1894
- Last year: 2012
- Observations: 6
- First position angle: 103
- Last position angle: 102
- First separation: 42.2
- Last separation: 43.0
- Mag first component: 11.66
- Mag second component: 12.75
- Spectral type:
- Primary proper motion RA: -1
- Primary proper motion DEC: -6
- Secondary proper motion RA: -7
- Secondary proper motion DEC: -5
- Durchmusterung:
- Notes: