21477+4759
- Unique Name: 21477+4759COU2316
- RA: 21 47 43.84
- Dec: +47 57 39.6
- Discoverer: COU
- Discoverer Number: 2316
- Components:
- First year: 1985
- Last year: 1991
- Observations: 2
- First position angle: 183
- Last position angle: 199
- First separation: 0.7
- Last separation: 0.6
- Mag first component: 11.42
- Mag second component: 11.89
- Spectral type:
- Primary proper motion RA: 64
- Primary proper motion DEC: 36
- Secondary proper motion RA: 64
- Secondary proper motion DEC: 36
- Durchmusterung: +47 3557
- Notes: