21547+4916
- Unique Name: 21547+4916ES 525
- RA: 21 54 42.53
- Dec: +49 16 20.7
- Discoverer: ES
- Discoverer Number: 525
- Components:
- First year: 1907
- Last year: 2003
- Observations: 4
- First position angle: 149
- Last position angle: 126
- First separation: 3.8
- Last separation: 5.2
- Mag first component: 8.77
- Mag second component: 10.7
- Spectral type: F2
- Primary proper motion RA: -20
- Primary proper motion DEC: -11
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +48 3544
- Notes: