21500+5940
- Unique Name: 21500+5940STI1055
- RA: 21 49 58.14
- Dec: +59 39 46.0
- Discoverer: STI
- Discoverer Number: 1055
- Components:
- First year: 1905
- Last year: 2010
- Observations: 4
- First position angle: 97
- Last position angle: 95
- First separation: 12.1
- Last separation: 13.3
- Mag first component: 11.06
- Mag second component: 13.6
- Spectral type:
- Primary proper motion RA: 23
- Primary proper motion DEC: 10
- Secondary proper motion RA: 15
- Secondary proper motion DEC: 18
- Durchmusterung:
- Notes: V