21523+4025
- Unique Name: 21523+4025ES 261
- RA: 21 52 16.23
- Dec: +40 26 09.0
- Discoverer: ES
- Discoverer Number: 261
- Components:
- First year: 1895
- Last year: 2013
- Observations: 23
- First position angle: 164
- Last position angle: 165
- First separation: 4.9
- Last separation: 5.1
- Mag first component: 11.11
- Mag second component: 11.1
- Spectral type:
- Primary proper motion RA: -4
- Primary proper motion DEC: 5
- Secondary proper motion RA: 2
- Secondary proper motion DEC: -5
- Durchmusterung: +39 4695
- Notes: D
