21131+1028
- Unique Name: 21131+1028BU 1501
- RA: 21 13 07.66
- Dec: +10 27 51.0
- Discoverer: BU
- Discoverer Number: 1501
- Components:
- First year: 1905
- Last year: 1991
- Observations: 10
- First position angle: 196
- Last position angle: 211
- First separation: 0.8
- Last separation: 1.1
- Mag first component: 10.96
- Mag second component: 11.27
- Spectral type: F8
- Primary proper motion RA: 37
- Primary proper motion DEC: -42
- Secondary proper motion RA: 37
- Secondary proper motion DEC: -42
- Durchmusterung: +09 4743
- Notes: N
