21536+2701
- Unique Name: 21536+2701ES 523
- RA: 21 53 40.52
- Dec: +27 01 44.2
- Discoverer: ES
- Discoverer Number: 523
- Components:
- First year: 1893
- Last year: 2010
- Observations: 10
- First position angle: 98
- Last position angle: 95
- First separation: 5.7
- Last separation: 5.9
- Mag first component: 10.9
- Mag second component: 11.12
- Spectral type:
- Primary proper motion RA: -14
- Primary proper motion DEC: -12
- Secondary proper motion RA: -9
- Secondary proper motion DEC: -10
- Durchmusterung: +26 4294
- Notes: