21217+1731
- Unique Name: 21217+1731BPM2364
- RA: 21 21 42.02
- Dec: +17 30 57.6
- Discoverer: BPM
- Discoverer Number: 2364
- Components:
- First year: 1995
- Last year: 2001
- Observations: 3
- First position angle: 128
- Last position angle: 128
- First separation: 119.4
- Last separation: 119.6
- Mag first component: 13.7
- Mag second component: 15.3
- Spectral type:
- Primary proper motion RA: -35
- Primary proper motion DEC: -26
- Secondary proper motion RA: -22
- Secondary proper motion DEC: -23
- Durchmusterung:
- Notes: NV
