20489+4607
- Unique Name: 20489+4607HJ 1581
- RA: 20 48 56.29
- Dec: +46 06 50.8
- Discoverer: HJ
- Discoverer Number: 1581
- Components:
- First year: 1828
- Last year: 2000
- Observations: 8
- First position angle: 173
- Last position angle: 173
- First separation: 14.0
- Last separation: 22.2
- Mag first component: 4.82
- Mag second component: 11.14
- Spectral type: B3Iae
- Primary proper motion RA: -2
- Primary proper motion DEC: -5
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +45 3291
- Notes: N
