21557+3708
- Unique Name: 21557+3708ES 2523
- RA: 21 55 51.35
- Dec: +37 07 28.2
- Discoverer: ES
- Discoverer Number: 2523
- Components:
- First year: 1931
- Last year: 2011
- Observations: 5
- First position angle: 28
- Last position angle: 32
- First separation: 3.9
- Last separation: 4.7
- Mag first component: 11.0
- Mag second component: 11.0
- Spectral type:
- Primary proper motion RA: -20
- Primary proper motion DEC: -15
- Secondary proper motion RA: 13
- Secondary proper motion DEC: 19
- Durchmusterung:
- Notes:
