21237+2016
- Unique Name: 21237+2016COU 230
- RA: 21 23 42.66
- Dec: +20 15 41.4
- Discoverer: COU
- Discoverer Number: 230
- Components:
- First year: 1967
- Last year: 2007
- Observations: 2
- First position angle: 187
- Last position angle: 188
- First separation: 0.9
- Last separation: 0.8
- Mag first component: 9.3
- Mag second component: 11.9
- Spectral type: K0
- Primary proper motion RA: 3
- Primary proper motion DEC: -2
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +19 4696
- Notes: