20427+4521
- Unique Name: 20427+4521ES 1270
- RA: 20 42 45.33
- Dec: +45 20 28.2
- Discoverer: ES
- Discoverer Number: 1270
- Components:
- First year: 1892
- Last year: 2003
- Observations: 7
- First position angle: 287
- Last position angle: 289
- First separation: 5.7
- Last separation: 5.9
- Mag first component: 10.5
- Mag second component: 11.1
- Spectral type:
- Primary proper motion RA: 38
- Primary proper motion DEC: -21
- Secondary proper motion RA: 0
- Secondary proper motion DEC: -10
- Durchmusterung: +44 3549
- Notes: