21366+5842
- Unique Name: 21366+5842BU 371
- RA: 21 36 31.99
- Dec: +58 42 39.5
- Discoverer: BU
- Discoverer Number: 371
- Components:
- First year: 1875
- Last year: 2003
- Observations: 11
- First position angle: 4
- Last position angle: 3
- First separation: 5.0
- Last separation: 8.8
- Mag first component: 8.3
- Mag second component: 10.8
- Spectral type: K0
- Primary proper motion RA: 14
- Primary proper motion DEC: -1
- Secondary proper motion RA: 5
- Secondary proper motion DEC: 0
- Durchmusterung: +58 2295
- Notes: