21221+3734
- Unique Name: 21221+3734ES 2517
- RA: 21 22 09.91
- Dec: +37 33 44.1
- Discoverer: ES
- Discoverer Number: 2517
- Components:
- First year: 1931
- Last year: 2002
- Observations: 3
- First position angle: 114
- Last position angle: 114
- First separation: 4.6
- Last separation: 5.2
- Mag first component: 10.5
- Mag second component: 11.0
- Spectral type:
- Primary proper motion RA: -16
- Primary proper motion DEC: 8
- Secondary proper motion RA: 21
- Secondary proper motion DEC: -3
- Durchmusterung:
- Notes:
