21497+3320
- Unique Name: 21497+3320ES 210
- RA: 21 49 42.61
- Dec: +33 20 33.5
- Discoverer: ES
- Discoverer Number: 210
- Components:
- First year: 1904
- Last year: 2002
- Observations: 7
- First position angle: 111
- Last position angle: 111
- First separation: 6.5
- Last separation: 6.5
- Mag first component: 10.55
- Mag second component: 11.9
- Spectral type:
- Primary proper motion RA: 18
- Primary proper motion DEC: -9
- Secondary proper motion RA: 20
- Secondary proper motion DEC: -19
- Durchmusterung: +32 4270
- Notes: