21578+5234
- Unique Name: 21578+5234ARN 98
- RA: 21 57 50.48
- Dec: +52 33 35.0
- Discoverer: ARN
- Discoverer Number: 98
- Components:
- First year: 1900
- Last year: 2007
- Observations: 9
- First position angle: 265
- Last position angle: 265
- First separation: 35.7
- Last separation: 35.6
- Mag first component: 10.13
- Mag second component: 10.5
- Spectral type:
- Primary proper motion RA: 14
- Primary proper motion DEC: 27
- Secondary proper motion RA: 14
- Secondary proper motion DEC: 27
- Durchmusterung:
- Notes: