21456+2709
- Unique Name: 21456+2709MLB1050
- RA: 21 45 45.50
- Dec: +27 07 01.8
- Discoverer: MLB
- Discoverer Number: 1050
- Components:
- First year: 1938
- Last year: 2008
- Observations: 6
- First position angle: 64
- Last position angle: 66
- First separation: 7.3
- Last separation: 7.1
- Mag first component: 10.82
- Mag second component: 13.0
- Spectral type:
- Primary proper motion RA: 6
- Primary proper motion DEC: 7
- Secondary proper motion RA: 26
- Secondary proper motion DEC: -4
- Durchmusterung:
- Notes: N
