21507+5947
- Unique Name: 21507+5947STI1058
- RA: 21 50 39.38
- Dec: +59 46 44.2
- Discoverer: STI
- Discoverer Number: 1058
- Components:
- First year: 1905
- Last year: 2010
- Observations: 3
- First position angle: 221
- Last position angle: 218
- First separation: 4.0
- Last separation: 3.0
- Mag first component: 12.24
- Mag second component: 12.8
- Spectral type:
- Primary proper motion RA: 13
- Primary proper motion DEC: 22
- Secondary proper motion RA: -28
- Secondary proper motion DEC: -20
- Durchmusterung:
- Notes: