21551+1320
- Unique Name: 21551+1320GRV 520
- RA: 21 55 08.22
- Dec: +13 20 19.3
- Discoverer: GRV
- Discoverer Number: 520
- Components:
- First year: 1999
- Last year: 2001
- Observations: 3
- First position angle: 137
- Last position angle: 136
- First separation: 23.2
- Last separation: 23.3
- Mag first component: 9.75
- Mag second component: 12.13
- Spectral type:
- Primary proper motion RA: -18
- Primary proper motion DEC: -13
- Secondary proper motion RA: -11
- Secondary proper motion DEC: -8
- Durchmusterung: +12 4714
- Notes: