21247+3631
- Unique Name: 21247+3631ES 2126AB
- RA: 21 24 42.86
- Dec: +36 30 30.1
- Discoverer: ES
- Discoverer Number: 2126
- Components: AB
- First year: 1924
- Last year: 2003
- Observations: 5
- First position angle: 172
- Last position angle: 172
- First separation: 4.2
- Last separation: 4.1
- Mag first component: 11.0
- Mag second component: 11.2
- Spectral type:
- Primary proper motion RA: -26
- Primary proper motion DEC: 37
- Secondary proper motion RA: 1
- Secondary proper motion DEC: -8
- Durchmusterung:
- Notes: