21486+5136
- Unique Name: 21486+5136HLD 48
- RA: 21 48 37.97
- Dec: +51 36 24.0
- Discoverer: HLD
- Discoverer Number: 48
- Components:
- First year: 1881
- Last year: 2011
- Observations: 15
- First position angle: 23
- Last position angle: 23
- First separation: 4.4
- Last separation: 4.5
- Mag first component: 9.37
- Mag second component: 10.56
- Spectral type: F2
- Primary proper motion RA: 6
- Primary proper motion DEC: -20
- Secondary proper motion RA: 15
- Secondary proper motion DEC: 6
- Durchmusterung: +50 3442
- Notes: