21212+4804
- Unique Name: 21212+4804ES 678
- RA: 21 21 15.35
- Dec: +48 03 18.8
- Discoverer: ES
- Discoverer Number: 678
- Components:
- First year: 1908
- Last year: 2003
- Observations: 4
- First position angle: 116
- Last position angle: 115
- First separation: 4.1
- Last separation: 4.4
- Mag first component: 10.98
- Mag second component: 13.0
- Spectral type:
- Primary proper motion RA: -24
- Primary proper motion DEC: 9
- Secondary proper motion RA: 55
- Secondary proper motion DEC: -30
- Durchmusterung: +47 3379
- Notes: