21359+1723
- Unique Name: 21359+1723BPM2399
- RA: 21 35 55.90
- Dec: +17 23 07.8
- Discoverer: BPM
- Discoverer Number: 2399
- Components:
- First year: 1983
- Last year: 2001
- Observations: 3
- First position angle: 230
- Last position angle: 230
- First separation: 93.0
- Last separation: 92.5
- Mag first component: 11.08
- Mag second component: 15.25
- Spectral type:
- Primary proper motion RA: -12
- Primary proper motion DEC: -19
- Secondary proper motion RA: -12
- Secondary proper motion DEC: -21
- Durchmusterung:
- Notes: NV
