21305+3701
- Unique Name: 21305+3701SEI1521
- RA: 21 30 26.38
- Dec: +37 01 45.3
- Discoverer: SEI
- Discoverer Number: 1521
- Components:
- First year: 1895
- Last year: 2001
- Observations: 6
- First position angle: 226
- Last position angle: 225
- First separation: 2.6
- Last separation: 2.7
- Mag first component: 10.0
- Mag second component: 10.2
- Spectral type:
- Primary proper motion RA: 4
- Primary proper motion DEC: 6
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: N