21317+3302
- Unique Name: 21317+3302GYL 63
- RA: 21 31 44.50
- Dec: +33 02 37.5
- Discoverer: GYL
- Discoverer Number: 63
- Components:
- First year: 1893
- Last year: 2011
- Observations: 8
- First position angle: 322
- Last position angle: 306
- First separation: 14.7
- Last separation: 16.0
- Mag first component: 10.8
- Mag second component: 11.0
- Spectral type:
- Primary proper motion RA: 20
- Primary proper motion DEC: 18
- Secondary proper motion RA: -9
- Secondary proper motion DEC: -7
- Durchmusterung:
- Notes: