21456+4110
- Unique Name: 21456+4110TDT3144
- RA: 21 45 34.53
- Dec: +41 10 28.6
- Discoverer: TDT
- Discoverer Number: 3144
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 193
- Last position angle: 193
- First separation: 2.2
- Last separation: 2.2
- Mag first component: 11.55
- Mag second component: 13.56
- Spectral type:
- Primary proper motion RA: 11
- Primary proper motion DEC: -8
- Secondary proper motion RA: 11
- Secondary proper motion DEC: -8
- Durchmusterung:
- Notes: