21454+4258
- Unique Name: 21454+4258ES 1459
- RA: 21 45 19.04
- Dec: +42 58 49.7
- Discoverer: ES
- Discoverer Number: 1459
- Components:
- First year: 1915
- Last year: 2000
- Observations: 6
- First position angle: 280
- Last position angle: 282
- First separation: 2.0
- Last separation: 2.2
- Mag first component: 9.8
- Mag second component: 9.8
- Spectral type:
- Primary proper motion RA: -9
- Primary proper motion DEC: -7
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: