21597-2959
- Unique Name: 21597-2959COO 247
- RA: 21 59 43.78
- Dec: -29 58 55.0
- Discoverer: COO
- Discoverer Number: 247
- Components:
- First year: 1901
- Last year: 1999
- Observations: 19
- First position angle: 259
- Last position angle: 263
- First separation: 3.1
- Last separation: 2.6
- Mag first component: 9.39
- Mag second component: 10.31
- Spectral type: F8/G0V
- Primary proper motion RA: -2
- Primary proper motion DEC: -8
- Secondary proper motion RA: -26
- Secondary proper motion DEC: -12
- Durchmusterung: -3018956
- Notes: