21462+2817
- Unique Name: 21462+2817MLB 540AB
- RA: 21 46 00.62
- Dec: +28 17 42.7
- Discoverer: MLB
- Discoverer Number: 540
- Components: AB
- First year: 1927
- Last year: 2011
- Observations: 6
- First position angle: 252
- Last position angle: 256
- First separation: 3.1
- Last separation: 4.0
- Mag first component: 12.62
- Mag second component: 14.1
- Spectral type: F9V
- Primary proper motion RA: 7
- Primary proper motion DEC: -5
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: U
