21396+2712
- Unique Name: 21396+2712GRV 489
- RA: 21 39 38.18
- Dec: +27 12 51.5
- Discoverer: GRV
- Discoverer Number: 489
- Components:
- First year: 1997
- Last year: 2001
- Observations: 3
- First position angle: 229
- Last position angle: 229
- First separation: 52.0
- Last separation: 51.9
- Mag first component: 10.36
- Mag second component: 13.67
- Spectral type:
- Primary proper motion RA: -21
- Primary proper motion DEC: -28
- Secondary proper motion RA: -23
- Secondary proper motion DEC: -20
- Durchmusterung: +26 4228
- Notes: