21013+1757
- Unique Name: 21013+1757BOY 11
- RA: 21 01 14.68
- Dec: +17 56 55.5
- Discoverer: BOY
- Discoverer Number: 11
- Components:
- First year: 2001
- Last year: 2008
- Observations: 3
- First position angle: 108
- Last position angle: 94
- First separation: 0.2
- Last separation: 0.3
- Mag first component: 20.84
- Mag second component: 21.43
- Spectral type:
- Primary proper motion RA: 0
- Primary proper motion DEC: -11
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: R
