21023+3931
- Unique Name: 21023+3931FYM 114AI
- RA: 21 02 20.96
- Dec: +39 30 32.5
- Discoverer: FYM
- Discoverer Number: 114
- Components: AI
- First year: 2000
- Last year: 2012
- Observations: 3
- First position angle: 276
- Last position angle: 277
- First separation: 41.0
- Last separation: 41.1
- Mag first component: 6.62
- Mag second component: 15.2
- Spectral type: K3II-III
- Primary proper motion RA: 2
- Primary proper motion DEC: 1
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: N
