21395+4144
- Unique Name: 21395+4144STT 447AC
- RA: 21 39 28.71
- Dec: +41 43 36.0
- Discoverer: STT
- Discoverer Number: 447
- Components: AC
- First year: 1783
- Last year: 2010
- Observations: 20
- First position angle: 158
- Last position angle: 176
- First separation: 13.9
- Last separation: 13.7
- Mag first component: 7.67
- Mag second component: 12.2
- Spectral type: K0III
- Primary proper motion RA: 8
- Primary proper motion DEC: -3
- Secondary proper motion RA: -1
- Secondary proper motion DEC: -6
- Durchmusterung:
- Notes: NU