21402-1826
- Unique Name: 21402-1826COO 243
- RA: 21 40 11.07
- Dec: -18 25 57.8
- Discoverer: COO
- Discoverer Number: 243
- Components:
- First year: 1897
- Last year: 2009
- Observations: 22
- First position angle: 63
- Last position angle: 65
- First separation: 4.9
- Last separation: 4.8
- Mag first component: 8.99
- Mag second component: 9.96
- Spectral type: G0V
- Primary proper motion RA: -20
- Primary proper motion DEC: -73
- Secondary proper motion RA: 16
- Secondary proper motion DEC: -48
- Durchmusterung: -19 6145
- Notes:
