21307+4435
- Unique Name: 21307+4435ES 1336
- RA: 21 30 43.89
- Dec: +44 36 01.0
- Discoverer: ES
- Discoverer Number: 1336
- Components:
- First year: 1914
- Last year: 1998
- Observations: 2
- First position angle: 340
- Last position angle: 346
- First separation: 3.7
- Last separation: 4.6
- Mag first component: 10.46
- Mag second component: 15.0
- Spectral type:
- Primary proper motion RA: 1
- Primary proper motion DEC: -21
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +43 3948
- Notes: