21078+3421
- Unique Name: 21078+3421FYM 125AK
- RA: 21 07 47.29
- Dec: +34 21 24.8
- Discoverer: FYM
- Discoverer Number: 125
- Components: AK
- First year: 2012
- Last year: 2012
- Observations: 1
- First position angle: 233
- Last position angle: 233
- First separation: 74.0
- Last separation: 74.0
- Mag first component: 10.22
- Mag second component: 16.0
- Spectral type: A7III
- Primary proper motion RA: 12
- Primary proper motion DEC: -5
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: