21175+3950
- Unique Name: 21175+3950SEI1493
- RA: 21 17 32.92
- Dec: +39 50 14.3
- Discoverer: SEI
- Discoverer Number: 1493
- Components:
- First year: 1895
- Last year: 2002
- Observations: 5
- First position angle: 148
- Last position angle: 143
- First separation: 24.3
- Last separation: 24.1
- Mag first component: 12.26
- Mag second component: 11.95
- Spectral type:
- Primary proper motion RA: -9
- Primary proper motion DEC: -12
- Secondary proper motion RA: 4
- Secondary proper motion DEC: -1
- Durchmusterung:
- Notes: